US Pat. No. 10,992,384

SINGLE-PHOTON AVALANCHE DIODE-BASED LIGHT COMMUNICATION DEVICES

1. A method of processing a visible light communication (VLC) signal using a single-photon avalanche diode (SPAD), the method comprising:detecting photons of a VLC signal at a SPAD detector;
counting the photons detected by the SPAD detector to generate a combined VLC signal comprising a data signal and an ambient signal;
extracting the ambient signal from the combined VLC signal;
subtracting the ambient signal from the combined VLC signal to generate the data signal; and
outputting the data signal as a bitstream by demodulating the data signal to generate the bitstream using a comparator triggered by a data rate.

US Pat. No. 10,992,383

AD HOC LIGHT-BASED MESH NETWORK

Accenture Global Solution...

1. A system for communicating messages, the system comprising:a plurality of nodes each including at least one light fidelity (LiFi) transceiver that emits in both a visible frequency band and an infrared or ultraviolet frequency, each respective node configured to perform operations including:
receiving, at the respective node, one or more LiFi discovery signals, each LiFi discovery signal sent from a respective proximal node and conveying a node identifier (ID) of the respective proximal node, wherein the one or more LiFi discovery signals are emitted in the visible frequency band while the respective proximal node is being used to light a space with visible light;
in response to receiving the one or more LiFi discovery signals, storing proximal node data that includes the respective node ID of each of the one or more proximal nodes to indicate that the one or more proximal nodes are available for LiFi communication with the respective node; and
receiving a LiFi message signal at the respective node and, in response, determining at least one of the one or more proximal nodes indicated in the proximal node data to re-transmit the LiFi message signal to, and re-transmitting the LiFi message signal to forward the LiFi message signal to the at least one of the one or more proximal nodes indicated in the proximal node data, wherein the LiFi message signal is emitted in an infrared or ultraviolet frequency band regardless of whether the respective node is being used to light the space with visible light,
wherein the plurality of nodes includes at least one terminal node this is communicatively coupled to an external network that employs a version of an Ethernet standard for communications;
wherein the at least one terminal node is configured to receive a message sent over the external network and emit a LiFi message signal that includes at least a portion of data conveyed in the message; and
wherein the at least one terminal node is configured to perform operations including:
determining, based on proximal node data stored by a first terminal node, that a first path from the first terminal node through a first proximal node to a second terminal node includes fewer of the plurality of nodes than a second path from the first terminal node through a second proximal node to the second terminal node; and
in response to determining, based on proximal node data stored by a first terminal node, that a first path from the first terminal node through a first proximal node to a second terminal node includes fewer of the plurality of nodes than a second path from the first terminal node through a second proximal node to the second terminal, determining to route the LiFi message signal to the first proximal node instead of the second proximal node and inserting routing information into the LiFi message signal that identifies a third node that is known to the at least one terminal node as proximal to the first proximal node.

US Pat. No. 10,992,382

CHANNEL MANAGEMENT TO PROVIDE NARROWCAST DATA SERVICES USING VISIBLE LIGHT COMMUNICATION

ARRIS Enterprises LLC, S...

1. An apparatus to manage channels, the apparatus comprising:a narrowcast receiver capable of receiving a downstream multiplexed signal including a broadcast signal and a narrowcast signal, together spanning a first frequency range;
a splitter configured to split the downstream multiplexed signal into a plurality of outputs, each output outputting the downstream multiplexed signal when the splitter splits the downstream multiplexed signal into the plurality of outputs;
a downconverter configured to convert at least a portion of the downstream multiplexed signal output by one or more of the plurality of outputs into a plurality of channels at one or more frequency ranges;
a filter configured to dynamically select a narrowcast set of channels in the plurality of channels; and;
a narrowcast transmitter configured to send a broadcast downstream signal over coaxial cable to a first set of subscriber devices using a first frequency spectrum different from the one or more frequency ranges, wherein a channel in the set of channels is sent to a same premises as the broadcast downstream signal, and to a second set of subscriber devices using the one or more frequency ranges.

US Pat. No. 10,992,381

METHOD FOR TRANSMITTING INFORMATION AND DEVICE FOR CARRYING OUT THE METHOD

1. A method for transmitting information, comprising:photographing an image by a camera with an image-taking rate corresponding to a frame rate, a controllable illuminant being disposed in a responsive range of the camera, wherein a control frequency of the illuminant is less than the image-taking Rate; wherein:
picture elements of each image taken are displayable as a two-dimensional matrix whose elements have numerical values for representing one of a gray level, color gradation, and a brightness of the corresponding picture element,
a respective sum of numerical values of a respective row of the matrix being formed, thus all row sums belonging to the image,
a respective sum of numerical values of a respective column of the matrix being formed, thus all row sums belonging to the image,
differences between the row sums and differences between the column sums of two images taken in a manner spaced over time are determined,
the picture element assigned to the illuminant is inferred from non-vanishing differential values, and
the information is decoded from a change over time in a numerical value of the picture element assigned to the illuminant, by determining a pulse-width-modulation ratio, and from that, determining the information.

US Pat. No. 10,992,377

CHANNEL DIAGNOSTICS BASED ON EQUALIZER COEFFICIENTS

INPHI CORPORATION, San J...

1. A device for generating channel diagnostics information in a communication system, the device comprising:a matrix rotator configured to receive a digital input signal vector and to generate a polarized digital signal vector;
an adaptive equalizer configured to generate an equalized signal vector from the polarized digital signal vector, and to adaptively generate equalizer coefficients from the polarized digital signal vector; and
a channel diagnostics block configured to generate the channel diagnostics information from the equalizer coefficients.

US Pat. No. 10,992,374

AUTOMATIC REMOTE NODE TURN-UP PROCEDURE USING A RAMAN AMPLIFIER ON A STRETCHED FIBER SPAN

Ciena Corporation, Hanov...

1. A system comprisinga processing device, and
a memory device configured to store a computer program having instructions that, when executed, cause the processing device to
turn on one or more Raman pumps of a Raman amplifier to a predetermined safe gain or power level,
determine an estimated loss along a fiber optic span of a link between adjacent nodes of an optical network, and
responsive to the estimated loss being greater than a reach of an Optical Supervisory Channel (OSC) signal along the link, automatically adjust the gain or power level of the one or more Raman pumps until the OSC signal is enabled.

US Pat. No. 10,992,373

ACCESS NODE FOR END-TO-END BEAMFORMING COMMUNICATIONS SYSTEM

VIASAT, INC., Carlsbad, ...

1. An access node for communication in a communication system comprising a plurality of access nodes at geographically distributed locations providing a communication service to user terminals distributed over multiple return user beam coverage areas via an end-to-end relay comprising multiple return receive/transmit signal paths, comprising:means for receiving a return downlink signal from the end-to-end relay, the return downlink signal comprising a relay beacon signal and return uplink signals from a plurality of the user terminals relayed by the end-to-end relay, to form a composite return signal;
means for obtaining receive timing information based on the relay beacon signal;
means for multiplexing the composite return signal with the receive timing information to obtain a multiplexed composite return signal; and
means for sending the multiplexed composite return signal to a return beamformer.

US Pat. No. 10,992,372

METHODS AND SYSTEMS FOR ASSISTING RADIO FREQUENCY SELECTION

HONEYWELL INTERNATIONAL I...

1. A method of monitoring an aircraft, the method comprising:monitoring a plurality of communications channels for a plurality of clearance communications using a communications system onboard the aircraft;
maintaining, in a data storage element onboard the aircraft, associations between respective communications channels and respective operational contexts of a plurality of different operational contexts based on the plurality of clearance communications; and
in response to detecting a change in an operational context of the aircraft, providing indication of a recommended communications channel based on an association between the recommended communications channel and one of the plurality of different operational contexts corresponding to a current operational context of the aircraft.

US Pat. No. 10,992,371

DESKTOP SIGNAL BOOSTER

Wilson Electronics, LLC, ...

1. A desktop signal booster, comprising:an integrated device antenna configured to communicate the cellular signal with the wireless device; and
an integrated node antenna transmit configured to communicate the cellular signal with a base station,
one or more amplification and filtering signal paths configured to amplify and filter a cellular signal for a wireless device;
wherein the one or more amplification and filtering signal paths are configured to be positioned between the integrated device antenna and the integrated node antenna; and
wireless charging circuitry configured to wirelessly charge the wireless device when the wireless device is placed within a selected distance from the desktop signal booster,
wherein the wireless charging circuitry is positioned in the desktop signal booster to be non-adjacent to the integrated device antenna and the integrated node antenna.

US Pat. No. 10,992,370

TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEIVING DEVICE AND RECEIVING METHOD

SUN PATENT TRUST, New Yo...

1. A transmission device comprising:a framing circuit configured to generate a frame such that the frame includes subframes arranged in a time axis, the subframes each consisting of OFDM symbols arranged in the time axis, each of the OFDM symbols being constituted by modulated signals that are arranged in a frequency axis;
a pilot insertion circuit connected to the framing circuit and configured to insert pilot signals in the modulated signals; and
an IFFT circuit connected to the pilot insertion circuit and configured to perform Inverse Fast Fourier Transformation on the modulated signals to generate a time-domain transmission signal to be transmitted to a reception device through an antenna, wherein
each of the OFDM symbols is one of a subframe boundary symbol and a data symbol, the subframe boundary symbol being provided at at least one of a head or a tail end of the OFDM symbols in the time axis, a density of pilot signals in the subframe boundary symbol being greater than a density of pilot signals in the data symbol.

US Pat. No. 10,992,368

THERMAL BASED WIRELESS CONFIGURATION

Motorola Mobility LLC, C...

1. A method, comprising:determining that a first antenna of a wireless device associated with a primary wireless beam exhibits a thermal condition;
inspecting one or more other wireless beams received at the wireless device to identify a second wireless beam that meets a signal condition threshold;
ascertaining whether a second antenna associated with the second wireless beam exhibits the thermal condition;
designating the second wireless beam as the primary wireless beam based on the second antenna not exhibiting the thermal condition; and
operating the first antenna in one or more of a reduced power mode or a reduced patch mode based on said designating the second wireless beam as the primary wireless beam.

US Pat. No. 10,992,366

METHOD AND APPARATUS FOR DETERMINING PHYSICAL UPLINK CHANNEL POWER CONTROL PARAMETER VALUES FOR USE AFTER A BEAM FAILURE RECOVERY

Lenovo (Singapore) Pte. L...

1. A method in a user equipment for determining physical uplink channel power control parameter values for use after a beam failure recovery, the method comprising:transmitting a physical random access channel with a spatial domain transmission filter associated with a selected downlink reference signal from a set of downlink reference signals configured for a link recovery;
determining whether the selected downlink reference signal is configured for at least one of a set of uplink spatial relation configurations as a reference signal for an uplink spatial relation setting for a physical uplink channel transmission;
determining a default power control parameter value for the physical uplink channel transmission in response to determining the selected downlink reference signal is not configured for any of the set of uplink spatial relation configurations until the user equipment receives an activation of an uplink spatial relation configuration or a reconfiguration of an uplink spatial relation configuration;
determining a power control parameter value for the physical uplink channel transmission corresponding to the uplink spatial relation configuration with the selected downlink reference signal as the uplink spatial relation setting in response to determining the selected downlink reference signal is configured for at least one of the set of the uplink spatial relation configurations until the user equipment receives the activation of an uplink spatial relation configuration or the reconfiguration of an uplink spatial relation configuration; and
transmitting the physical uplink channel with the spatial domain transmission filter associated with the selected downlink reference signal and the determined physical uplink channel power control parameter value.

US Pat. No. 10,992,365

BEAM SELECTION METHOD, APPARATUS AND SYSTEM

GUANGDONG OPPO MOBILE TEL...

1. A beam selection method, comprising:receiving, by a receiving device, at least one set of beam associating information sent by a sending device, each set of the beam associating information comprising an association relation between a first beam and at least one second beam, wherein the first beam overlaps the at least one second beam;
selecting, by the receiving device, according to the at least one set of beam associating information, a beam to be received among beams sent by the sending device;
sending, by the sending device, the at least one set of beam associating information to the receiving device, enabling the receiving device to select the first beam associated with a second beam as a beam for receiving the second physical channel according to the at least one set of beam associating information, when the receiving device receives the first physical channel through the second beam
wherein the association relation between the first beam and the at least one second beam comprises:
a first physical channel associated with the at least one second beam, and a second physical channel associated with the first beam;
wherein the selecting, by the receiving device, according to the at least one set of beam associating information, a beam to be received among beams sent by the sending device comprises:
when the receiving device receives the first physical channel through a second beam, selecting the first beam associated with the second beam as a beam for receiving the second physical channel according to the at least one set of beam associating information;
wherein the sending, by the sending device, the at least one set of beam associating information to the receiving device, enables the receiving device to select a beam to be received among beams sent by the sending device according to the at least one set of beam associating information.

US Pat. No. 10,992,363

METHOD, TERMINAL DEVICE AND NETWORK DEVICE FOR TRANSMITTING SIGNAL

GUANGDONG OPPO MOBILE TEL...

1. A method for transmitting a signal, comprising:transmitting, by a terminal device, first indicating information to a network device, wherein the first indicating information is configured to indicate a number N of beams that can be supported by the terminal device, wherein N is a positive integer greater than or equal to 2;
receiving, by the terminal device, second indicating information transmitted by the network device, wherein the second indicating information carries beam identities (IDs) configured for the N beams by the network device;
transmitting, by the terminal device, a first signal using the N beams, wherein the first signal is configured for the network device to determine a target beam among the N beams;
receiving, by the terminal device, a notification message transmitted by the network device, wherein the notification message is configured to notify the terminal device of the target beam determined by the network device; and
transmitting, by the terminal device, a second signal using the target beam;
wherein the second indicating information further carries a mapping relationship between the beam IDs and time-frequency resources;
wherein the transmitting, by the terminal device, the first signal using the N beams comprises:
transmitting, by the terminal device, the first signal using the N beams according to the beam IDs and the mapping relationship between the beam IDs and the time-frequency resources.

US Pat. No. 10,992,362

HANDLING OF BEAM PAIR LINKS

Telefonaktiebolaget LM Er...

1. A method for causing a switch to an alternative beam pair link, the method being performed by a terminal device, wherein the terminal device is configured with a trigger condition for beam link failure, the method comprising:estimating, during communication with a network node over a current beam pair link, that performance of the communication would be better if using the alternative beam pair link instead of the current beam pair link for the communication; and
reporting beam link failure of the current beam pair link to the network node thereby causing the switch to the alternative beam pair link;
wherein reporting the beam link failure is independent of the trigger condition for beam link failure of the current beam pair link being met.

US Pat. No. 10,992,361

DETERMINING PRECODING COEFFICIENTS FOR FRONTHAUL LINKS IN A CLOUD RADIO ACCESS NETWORK

1. A baseband unit device, comprising:a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
selecting a defined number of portions of respective subgroups of beamforming coefficients having spectral efficiencies that satisfy a threshold spectral efficiency, wherein the respective subgroups of beamforming coefficients correspond to respective basis vectors; and
transmitting the defined number of portions of the respective subgroups of beamforming coefficients to a remote radio unit device to facilitate digital beamforming of a transmission to occur at the remote radio unit device.

US Pat. No. 10,992,360

FEEDBACK OVERHEAD REDUCTION FOR PRECODERS UNDER HIGH RANK SPATIAL CHANNELS

Apple Inc., Cupertino, C...

7. An apparatus, comprising:a processor configured to cause a user equipment device (UE) to:
establish a connection with a base station;
receive, from the base station, control information for reporting channel state information, wherein the control information specifies:
at least one technique for reducing overhead associated with reporting channel state information;
a plurality of layers including 3 or more layers;
a plurality of L beams; and
a plurality of N subbands; and
transmit, to the base station, a first channel state information report according to the control information, wherein the first channel state information report omits at least one coefficient.

US Pat. No. 10,992,359

UPLINK SOUNDING FOR WLAN SYSTEM

NEWRACOM, INC., Lake For...

1. A station for facilitating communication in a wireless network for multi-user transmission, the station comprising:one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors configured to cause:
receiving a first frame from an access point;
determining whether a length contained in the first frame exceeds a predetermined threshold length;
determining that the access point is soliciting null data packet (NDP) frames from a plurality of stations including the station when the length contained in the first frame is determined not to exceed the predetermined threshold length;
generating a second frame that excludes a data field; and
transmitting the second frame in response to the first frame of a multi-user uplink transmission to the access point.

US Pat. No. 10,992,358

SIGNALING FOR RESOURCE ALLOCATION AND SCHEDULING IN 5G-NR INTEGRATED ACCESS AND BACKHAUL

Apple Inc., Cupertino, C...

1. An apparatus comprising:a processor, where the processor is configured to cause a user equipment (UE) to:configure the UE for reporting channel state information (CSI) including a channel quality indicator (CQI) information;
process a CSI reference resource received from a next generation Node B (gNB);
perform a CQI calculation, wherein to perform the CQI calculation, the processor is configured to assume a physical resource block (PRB) bundling size of two PRBs in the CSI reference resource;
generate a report to report the CQI information based on the CQI calculation; and
generate signalling to transmit the report to the gNB.

US Pat. No. 10,992,356

MAIN BLUETOOTH CIRCUIT OF MULTI-MEMBER BLUETOOTH DEVICE

REALTEK SEMICONDUCTOR COR...

1. A main Bluetooth circuit (110) of a multi-member Bluetooth device (100), wherein the multi-member Bluetooth device (100) is utilized for communicating data with a remote Bluetooth device (102) and comprises the main Bluetooth circuit (110) and an auxiliary Bluetooth circuit (120), the main Bluetooth circuit (110) comprising:a Bluetooth communication circuit (111);
a data transmission circuit (113);
a control circuit (115) arranged to operably conduct a bidirectional packet transmission with the remote Bluetooth device (102) through the Bluetooth communication circuit (111) by utilizing a Bluetooth wireless transmission approach, and arranged to operably communicate data with other devices through the data transmission circuit (113); and
a determining circuit (117) coupled with the control circuit (115) and arranged to operably evaluate a computing loading of the main Bluetooth circuit (110) or a temperature of the main Bluetooth circuit (110);
wherein the control circuit (115) instructs the auxiliary Bluetooth circuit (120) to replace the main Bluetooth circuit (110) for conducting a bidirectional packet transmission with the remote Bluetooth device (102) when the computing loading of the main Bluetooth circuit (110) exceeds a predetermined level or the temperature of the main Bluetooth circuit (110) exceeds a predetermined temperature;
wherein when the Bluetooth communication circuit (111) conducts the bidirectional packet transmission with the remote Bluetooth device (102), the auxiliary Bluetooth circuit (120) sniffs packets issued from the remote Bluetooth device (102); and
when the control circuit (115) has detected that the auxiliary Bluetooth circuit (120) has missed packets issued from the remote Bluetooth device (102), the control circuit (115) is further arranged to operably transmit missing packets of the auxiliary Bluetooth circuit (120) to the auxiliary Bluetooth circuit (120) through the data transmission circuit (113).

US Pat. No. 10,992,355

ELECTRONIC DEVICE INCLUDING PLURALITY OF PANEL ANTENNAS AND OPERATING METHOD THEREOF

SAMSUNG ELECTRONICS CO., ...

1. An operating method of an electronic device having a plurality of panel antennas and storing information about a plurality of codebooks, the operating method comprising:determining at least one panel antenna, among the plurality of panel antennas, based on environmental information, each of the plurality of panel antennas comprises a plurality of array antennas;
receiving control information from a base station; and
selecting an optimal codebook, among the plurality of codebooks, based on the determined at least one panel antenna and the received control information,
wherein the selecting of the optional codebook comprises:
generating a mutual coupling matrix between the plurality of array antennas in the determined at least one panel antenna; and
determining an array response vector for the determined at least one panel antenna based on the mutual coupling matrix.

US Pat. No. 10,992,354

DIFFERENTIAL QUANTIZATION OF PRECODER MATRIX

MEDIATEK SINGAPORE PTE. L...

1. A method of wireless communication of a user equipment (UE), comprising:measuring one or more reference signals transmitted from a base station to determine a channel state on a channel of a wide-band including M delay taps, M being an integer greater than 1;
determining, based on the channel state, a first precoder matrix for selecting a set of beams from L beams transmitted from the base station on the channel, L being an integer greater than 1;
determining, based on the channel state, a second precoder matrix for combining the set of beams, the second precoder matrix including at least two groups of coefficients, each group including coefficients being normalized based on a respective reference coefficient selected from the each group, each coefficient in the at least two groups of coefficients corresponding to a respective one beam of the L beams at a particular polarization on a respective one delay tap of the M delay taps;
quantizing coefficients of the second precoder matrix other than reference coefficients; and
transmitting an indication of the second precoder matrix having quantized coefficients.

US Pat. No. 10,992,353

SYSTEMS AND METHODS FOR COMMUNICATING BY MODULATING DATA ON ZEROS IN THE PRESENCE OF CHANNEL IMPAIRMENTS

California Institute of T...

1. A method of communication, comprising:receiving a plurality of information bits;
outputting a plurality of encoded bits in accordance with a cycling register code (CRC);
modulating the plurality of encoded bits to obtain a discrete-time baseband signal, where the plurality of encoded bits are encoded in the zeros of the z-transform of the discrete-time baseband signal;
generating a continuous-time signal based upon the discrete-time baseband signal;
down converting and sampling a received continuous-time signal at a given sampling rate to obtain a received discrete-time baseband signal, where the received discrete-time baseband signal includes at least one of a timing offset (TO) and a carrier frequency offset (CFO);
decoding a plurality of decoded information bits from the received discrete-time baseband signal by:
estimating a TO for the received discrete-time baseband signal to identify a received symbol;
determining a plurality of zeros of a z-transform of the received symbol;
identifying zeros from the plurality of zeros that encode received bits; and
decoding the plurality of decoded information bits based upon the received bits using the CRC.

US Pat. No. 10,992,351

SIGNAL TRANSMISSION METHOD, NETWORK DEVICE, AND TERMINAL DEVICE

Huawei Technologies Co., ...

1. A communication method, comprising:determining a first time-frequency resource, wherein the first time-frequency resource is a physical downlink control channel (PDCCH) candidate in a plurality of PDCCH candidates;
determining a second time-frequency resource and a third time-frequency resource in the first time-frequency resource, wherein the first time-frequency resource consists of a plurality of resource element (RE) sets, all of the plurality of RE sets comprises a same fixed quantity of REs, and the third time-frequency resource is located at a preset location in each of the plurality of RE sets, wherein each RE set comprises a plurality of RE groups (REGs), wherein the third time-frequency resource includes at least one RE in each REG of the plurality of REGs in each RE set, and the second time-frequency resource comprises a resource other than the third time-frequency resource in the first time-frequency resource, the second time-frequency resource is used to carry a beamformed control channel, and the third time-frequency resource is used to carry a reference signal of the beamformed control channel; and
transmitting the beamformed control channel and the reference signal of the beamformed control channel to a terminal device by using the second time-frequency resource and the third time-frequency resource.

US Pat. No. 10,992,349

TRANSMISSION ANTENNA MODULE, NON-CONTACT TRANSMISSION MODULE, NON-CONTACT COMMUNICATION SYSTEM PROVIDED THEREWITH AND NON-CONTACT COMMUNICATION METHOD

Hosiden Corporation, Yao...

1. A non-contact transmission module comprising:a transmission antenna constituted by a metal plate, or by a conductor formed on an insulator, the transmission antenna being configured to be electromagnetically or magnetically coupled to a reception antenna of a non-contact reception module;
a transmitter configured to transmit the digital signal; and
at least one resistor connected in series between the transmission antenna and the transmitter, the at least one resistor having such a resistance value that the at least one resistor entirely blunts a waveform of a digital signal to be inputted into the at least one resistor so as to reduce or suppress ringing occurring in the digital signal, wherein
the blunted digital signal is to be inputted into the transmission antenna,
the transmitter includes a first port and a second port,
the transmission antenna includes a first portion and a second portion,
the at least one resistor comprises a plurality of the resistors including at least one first resistor and at least one second resistor,
the at least one first resistor is connected in series between the first port of the transmitter and the first portion of the transmission antenna,
the at least one second resistor is connected in series between the second port of the transmitter and the second portion of the transmission antenna,
the digital signal comprises differential signals,
the transmitter is configured to output a positive signal of the differential signals from the first port and output a negative signal of the differential signals from the second port,
the at least one first resistor has such the resistance value that the at least one first resistor entirely blunts the waveform of the positive signal so as to reduce or suppress ringing occurring in the positive signal outputted from the first port, and
the at least one second resistor has such the resistance value that the at least one second resistor entirely blunts the waveform of the negative signal so as to reduce or suppress ringing occurring in the negative signal outputted from the second port.

US Pat. No. 10,992,348

NEAR FIELD COMMUNICATION ELECTRONIC BOLT

National Chung-Shan Insti...

1. An electronic bolt using wireless communication, comprising:a bolt circuit board, comprising:
a bolt coil formed on a surface of the bolt circuit board, and configured to receive a wireless energy from an electronic seal; and
a chip disposed on the surface of the bolt circuit board, electrically connected to the bolt coil, and configured to generate a wireless signal containing a unique identification to the bolt coil when the chip is driven by the wireless energy;
a holder configured to fix and support the bolt circuit board; and
a bolt housing configured to contain the bolt circuit board and the holder;
wherein the electronic bolt is locked or unlocked with the electronic seal when the unique identification is confirmed by the electronic seal.

US Pat. No. 10,992,347

PULSED WIRELESS POWER DEVICE AND METHOD

KABUSHIKI KAISHA TOSHIBA,...

12. A method comprising:detecting a wireless signal of a wireless communication system; and
supplying power to a power reception device with electromagnetic waves,
wherein
the supplying power includes:
supplying the power during a second period when the wireless signal is not detected during a first period; and
supplying the power during a fourth period different from the second period when the wireless signal is not detected during a third period different from the first period, and
a second ratio of the fourth period to the third period is the same as a first ratio of the second period to the first period.

US Pat. No. 10,992,346

SYSTEMS AND DEVICES WITH COMMON MODE NOISE SUPPRESSION STRUCTURES AND METHODS

NXP USA, Inc., Austin, T...

1. A device comprising:a first integrated circuit (IC) die that includes:
a first IC substrate having a first IC substrate surface;
a first build-up structure connected to the first IC substrate surface, wherein the first build-up structure includes a plurality of parallel first alternating conductive layers and dielectric layers formed on the first IC substrate surface, wherein the plurality of first alternating conductive and dielectric layers has a first exterior surface;
a first coil formed from portions of a first set of conductive layers of the plurality of first alternating conductive and dielectric layers, wherein first and second terminals of the first coil are configured to be electrically coupled to first communication circuitry; and
a first capacitor that includes a first electrode formed from a portion of the first coil, a second electrode formed from a second conductive layer of the plurality of first alternating conductive and dielectric layers, and first dielectric material between the first set of conductive layers and the second conductive layer that electrically isolates the first electrode and the second electrode from each other, wherein the second electrode includes a plurality of conductive fingers that extend across the first coil outwardly from a location that is vertically offset from a center of the first coil so that the first coil and the plurality of conductive fingers are capacitively coupled, and wherein the second electrode is electrically coupled to a voltage reference of the first IC die.

US Pat. No. 10,992,345

METHOD FOR LOW VOLTAGE BROADBAND POWER LINE CARRIER COMMUNICATION

WU QI TECHNOLOGIES, INC.,...

1. A method for low voltage broadband power line carrier communication, comprising:modulating and transmitting, by a transmitter, a physical layer protocol frame; and
receiving and processing, by a receiver, the physical layer protocol frame;
wherein the physical layer protocol frame includes:
a plurality of short preambles,
a plurality of long preambles,
a plurality of frame control symbols, and
a plurality of data payload symbols;
the modulating the physical layer protocol frame comprises steps of:
selecting a plurality of sub-carriers according to a fixed frequency interval to transmit the short preambles; and
transmitting, using all available sub-carriers, the long preambles, the frame control symbols, and the data payload symbols;
wherein the receiving and processing the physical layer protocol frame includes steps of:
Step S1: performing, by the receiver, direct-current estimation, automatic gain control, frequency offset compensation, symbol synchronization, and channel estimation with respect to the short preambles and long preambles received;
Step S2: processing, by the receiver, the frame control symbols and the data payload symbols after obtaining accurate channel information based on the outcomes from step S1 to obtain correct data; and
wherein the processing the short preambles and long preambles in the physical layer protocol frame specifically includes steps of:
Step S1.1: analog gain adjustment, wherein an analog gain module adjusts gain of the received analog signal;
Step S1.2: analog-to-digital conversion, wherein an analog-to-digital conversion module performs analog-to-digital conversion to the received short preambles or long preambles to produce a time-domain short preamble or long preamble digital sampling signal;
Step S1.3: automatic gain control, wherein an automatic gain control module performs energy estimation on the short preamble or long preamble digital sampling signal to obtain an energy gain parameter, the energy gain parameter acting on the analog gain module to implement energy gain coefficient adjustment;
Step S1.4: direct-current estimation, wherein a direct-current estimation module performs direct-current estimation on the short preamble or long preamble digital sampling signal to obtain a time-domain signal;
Step S1.5: frequency offset compensation, wherein a frequency offset compensation module performs coarse-grained frequency offset compensation for the short preambles or performs fine-grained frequency offset compensation for the long preambles;
Step S1.6: symbol synchronization, wherein a symbol synchronization module performs coarse-grained autocorrelation processing to the short preambles or performs fine-grained autocorrelation processing for the long preambles, thereby implementing symbol synchronization;
Step S1.7: fast Fourier transformation, wherein a fast Fourier transformation module performs fast Fourier transformation to the short preambles and the long preambles and then converts the fast Fourier transformed short preambles and the fast Fourier transformed long preambles from time domain to frequency domain;
Step S1.8: channel estimation, wherein a channel estimation module performs channel estimation to the short preambles or the long preambles to obtain an estimated preamble value.

US Pat. No. 10,992,344

MULTI-USE OPTICAL DATA, POWERLINE DATA, AND GROUND POWER INTERFACE FOR AIRPLANE FACTORY AUTOMATION

The Boeing Company, Chic...

1. A method for communicating data between a vehicle and a ground system, the method comprising:providing, by the ground system, electrical power to an onboard system on the vehicle via a power path of a multi-use power interface;
receiving, by a vehicle bus multiplexer on the vehicle, the data via a plurality of vehicle data buses from the onboard system on the vehicle;
multiplexing, by the vehicle bus multiplexer, a first portion of the data into an optical data path of the multi-use power interface, wherein the multi-use power interface comprises a cable comprising the optical data path and the power path;
multiplexing, by the vehicle bus multiplexer, a second portion of the data into the power path of the multi-use power interface;
transmitting, by the multi-use power interface via the optical data path and the power path, the data from the vehicle bus multiplexer to a ground bus multiplexer associated with the ground system;
demultiplexing, by the ground bus multiplexer, the data from the optical data path and the power path of the multi-use power interface into a plurality of ground data buses associated with the ground system; and
transmitting, by the ground bus multiplexer, the data via the plurality of ground data buses to the ground system.

US Pat. No. 10,992,343

GUIDED ELECTROMAGNETIC WAVE COMMUNICATIONS VIA AN UNDERGROUND CABLE

1. A communication system, comprising:a transmitter configured to generate a first communication signal conveying data; and
a first coupler configured to generate first guided electromagnetic waves in response to the first communication signal, wherein the first guided electromagnetic waves are guided by an external surface of a metallic shield of a underground power cable and propagate, without requiring any electrical return path, via a wave mode having a majority of field strength within a protective jacket of the underground power cable, wherein the underground power cable further includes an inner conductor within the metallic shield and a high voltage dielectric between an inner surface of the metallic shield and the inner conductor.

US Pat. No. 10,992,342

SIMPLIFIED MULTIMODE SIGNALING TECHNIQUES

Intel Corporation, Santa...

1. An encoder comprising:a channel characterization circuit to determine channel response parameters for a plurality of communication links of a communication channel, wherein the communication links are bundled in groups (N) of communication links; and
a modulation module to receive a plurality of input signals and generate, based on the determined channel response parameters for each one of a plurality of communication links, a corresponding output signal for transmission on each respective one of the plurality of communication links, wherein the modulation module is configured to,
modulate the input signal (Vm) for a respective communication link in a corresponding group (N) of communication links as a function of a first alpha-term (?s1);
modulate the input signal (Vm) for the respective communication link in the corresponding group (N) of communication links as a function of a modal delay skew term (?T) and a second alpha-term (?s2); and
modulate the input signal for each of the other communication links in the corresponding group (Vk, for 1?k?N, k?m) as a function of the modal delay skew term (?T) and a cross-coupling alpha-term (?xkm) for the respective other communication link.

US Pat. No. 10,992,341

LOW-COMPLEXITY BEAMFORMING FOR A MULTI-LINE COMMUNICATION SYSTEM

NOKIA SOLUTIONS AND NETWO...

1. An apparatus comprising a data transmitter that comprises an analog front end connectable to proximal ends of a plurality of subscriber lines and a digital signal processor configured to drive the analog front end to cause a plurality of output signals to be transmitted on the subscriber lines using frequency-division multiplexing;wherein the digital signal processor comprises a vector processor configured to:
for a first tone, generate a plurality of first precoded data signals by applying a plurality of weighting factors to a value being communicated to a data receiver at a distal end of a selected one of the subscriber lines; and
drive the analog front end to apply each of the first precoded data signals to a respective one of the subscriber lines;
wherein the first precoded data signals that are applied to the subscriber lines other than the selected one of the subscriber lines are coupled to the selected one of the subscriber lines by way of interline crosstalk on the first tone;
wherein the weighting factors are selected such as to cause constructive interference of the first precoded data signals received by the data receiver, each of the weighting factors being represented by a one-bit value, a two-bit value, or a three-bit value; and
wherein the signal processor further comprises a plurality of symbol encoders and a data selector configured to select for a given symbol period a single symbol value from a plurality of symbol values generated by the symbol encoders and apply said single symbol value to the vector processor, said single symbol value being the value communicated to the data receiver in the given symbol period.

US Pat. No. 10,992,338

SECURE WIRELESS IOT PLATFORM

MICROSOFT TECHNOLOGY LICE...

1. A method for providing a secure channel hopping platform for transmitting or receiving messages over a television whitespace (TVWS) spectrum, said method being performed by a computer system and comprising:receiving a message from a client device, the message being received over a first channel in the TVWS spectrum and including a transmit power of the client device used to transmit the message;
measuring a receiving power associated with receiving the message at the computer system;
dynamically computing a transmission loss associated with the message by computing a difference between the transmit power and the receiving power, the transmission loss being selected to operate as a secret key for channel hopping;
using the secret key to select a second channel in the TVWS spectrum;
determining whether the second channel is free;
in response to determining the second channel is free, causing the second channel to be selected as a new hopping channel;
in response to determining the second channel is not free:
using a combination of the secret key and a new parameter to select a third channel in the TVWS spectrum;
determining the third channel is free; and
causing the third channel to be selected as the new hopping channel;
generating an acknowledgement (Ack) message that is structured to include channel hopping data, wherein:
when the second channel is selected as the new hopping channel, (i) the channel hopping data is structured to include a transmit power of the computer system used to transmit the Ack message, or (ii) the channel hopping data is null; or
when the third channel is selected as the new hopping channel, the channel hopping data includes at least the new parameter;
transmitting the Ack message to the client device; and
transitioning to the new hopping channel in preparation to receive a new message from the client device over the new hopping channel.

US Pat. No. 10,992,337

HIGH-ORDER PSK SIGNALING (HOPS) TECHNIQUES FOR LOW-POWER SPREAD SPECTRUM COMMUNICATIONS

TOKAY SYSTEMS LLC, Black...

1. An apparatus for generating a communications signal, the apparatus comprising:a seed calculator configured to calculate an initial seed vector in response to a plurality of initial key values, wherein:
(i) the plurality of initial key values includes a global key value shared by nodes of a communication system including a node containing the apparatus, an initial session key value and an initial time-based counter value;
(ii) each of the plurality of initial key values are defined with respect to a residue number system (RNS);
(iii) the initial seed vector includes a plurality of initial index values calculated based upon the plurality of initial key values; and
(iv) the initial seed vector is derived by a residue calculator configured to calculate, in response to the plurality of initial key values, an initial residue vector corresponding to the initial seed vector;
a sequence generator configured to generate an initial spreading sequence using the initial seed vector;
a modulator operative to generate an initial portion of the communications signal by spreading at least part of a data signal using the initial spreading sequence; and
a transmitter operative to transmit an analog version of the initial portion of the communications signal.

US Pat. No. 10,992,336

IDENTIFYING AUDIO CHARACTERISTICS OF A ROOM USING A SPREAD CODE

Roku, Inc., San Jose, CA...

1. A computer implemented method for adjusting playback of audiovisual content at a location, comprising:receiving, by at least one processor at a first electronic device at the location, a spread spectrum signal from a second electronic device over an audio data channel;
despreading, by the at least one processor, the spread spectrum signal based on a spreading code;
determining, by the at least one processor, a time of receipt of the spread spectrum signal based on the despreading;
receiving, by the at least one processor, a time of transmission of the spread spectrum signal;
calculating, by the at least one processor, an airtime delay associated with the second electronic device based on the time of receipt and the time of transmission;
determining, by the at least one processor, a direction of the second electronic device from the first electronic device based on the spread spectrum signal from the second electronic device and beam forming techniques; and
adjusting, by the at least one processor, the playback of the audiovisual content at the second electronic device and a third electronic device for the location based on the airtime delay associated with the second electronic device and the direction of the second electronic device.

US Pat. No. 10,992,334

RADIO FREQUENCY SWITCHES WITH CONTROLLABLE RESONANT FREQUENCY

Analog Devices Internatio...

1. A radio frequency (RF) switch with adjustable resonant frequency, the RF switch comprising:a plurality of terminals including a first terminal and a second terminal;
an inductor electrically connected between the first terminal and the second terminal; and
a plurality of field-effect transistors (FETs) electrically connected in series between the first terminal and the second terminal and in parallel with the inductor, wherein a first portion of the plurality of FETs are controlled by a control signal to set the RF switch in an ON state or an OFF state, and wherein a second portion of the plurality of FETs are separately controllable from the control signal to adjust a resonant frequency of the RF switch in the OFF state.

US Pat. No. 10,992,333

SMART PHONE HOLDER

AATC, LLC, Centennial, C...

1. A holder for holding a mobile device, comprising:a back plate defining two generally parallel opposed edges;
a strut operatively associated with said back plate so that said strut can be moved with respect to said back plate;
a strut lock operatively associated with said back plate and said strut, said strut lock holding said back plate and said strut in a desired position;
a first jaw operatively associated with said back plate, said first jaw being sized to engage a portion of the mobile device;
a slider member having a front side and a back side, said slider member having opposed end portions that define respective flanges, the flanges and the back side of said slider member defining respective channels therebetween that are sized to slidably engage the two generally parallel opposed edges defined by said back plate so that said slider member can be moved toward and away from said first jaw; and
a second jaw operatively associated with said slider member so that said second jaw can be moved toward and away from said first jaw along with said slider member, said second jaw being sized to engage a portion of the mobile device.

US Pat. No. 10,992,330

METHODS AND APPARATUS FOR PACKET TESTING AND ISOLATION OF INTERFERENCE IN A MULTI-LAYERED PROTOCOL

ISCO International, LLC, ...

1. A method, comprising:identifying, by a system comprising a processor, network communication degradation in one or more layers of a multi-layered communication protocol, wherein the network communication degradation is associated with communications taking place in part over a radio frequency link between a plurality of communication devices;
responsive to the identifying:
creating, by the system, one or more downlink test packets;
determining, by the system, a threshold according to a frequency domain profile, a time domain profile or both of a desired uplink test packet without interference;
directing, by the system, one or more communication devices of the plurality of communication devices to send the one or more downlink test packets, wherein each of the one or more downlink test packets is unique to each of the one or more communication devices;
directing, by the system, the one or more communication devices of the plurality of communication devices to send one or more uplink test packets that comprise the one or more downlink test packets unique to each of the one or more communication devices;
receiving, by the system, the one or more uplink test packets; and
analyzing, by the system, the one or more uplink test packets to locate a source of interference causing the network communication degradation at the one or more layers of the multi-layered communication protocol, wherein the analyzing comprises comparing the one or more uplink test packets to the threshold, and wherein the analyzing is enabled according to the one or more downlink test packets being unique to each of the one or more communication devices.

US Pat. No. 10,992,329

SIGNAL PROCESSING SYSTEMS AND METHODS

SUREWAVE TECHNOLOGY LIMIT...

1. A noise reduction system for reducing noise in signals received at a digital receiver, the digital receiver comprising a digital receiver input for receiving an analogue signal, analogue signal processing circuitry for processing an analogue signal, and an output for providing the processed signal to a digital signal processor, wherein:the noise reduction system is located between the digital receiver input and the analogue signal processing circuitry, and comprises:
a first component comprising:
an input arranged to receive the analogue signal from the digital receiver input;
a processor arranged to assess the received analogue signal and to identify one or more noise signals within the received analogue signal, wherein the processor of the first component is configured to convert the received analogue signal into a digital signal, and to perform a mathematical transformation on the converted digital signal, the mathematical transformation identifying the one or more noise signals and at least one property associated with each identified noise signal; and
an output arranged to output the results of the noise signal identification; and
a second component comprising:
an input arranged to receive the results of the noise signal identification from the first component; and
electronic circuitry arranged, in dependence on the results of the noise signal identification, to apply one or more counter-measures to the received analogue signal to produce a modified analogue signal output to the analogue signal processing circuitry, the modified analogue signal having a reduced level of noise compared to the received analogue signal;
wherein the noise reduction system is arranged to assess the modified analogue signal to identify sources of noise still present within the analogue signal to determine whether any further counter-measures are required.

US Pat. No. 10,992,328

COMMUNICATIONS DEVICES, INFRASTRUCTURE EQUIPMENT AND METHODS

SONY CORPORATION, Tokyo ...

1. A communications device comprising:circuitry configured to
receive data via a downlink of a wireless access interface including communications resources for allocation to the communications device on the downlink, the communications resources comprising frequency resources, and time resources in which the wireless access interface is divided into predetermined time-divided subframes;
receive an encoded transport block of data in a plurality of subframes within a single physical resource block that spans multiple subframes of the wireless access interface allocated to the communications device, wherein the encoded transport block is divided into a plurality of sub-units, each of the sub-units being received only in the single physical resource block that spans multiple subframes a repeated number of times over the multiple subframes within a repetition cycle, wherein a first sub-unit of the plurality of sub-units being received a first repeated number of times and a second sub-unit of the plurality of sub-units being received a second repeated number of times, wherein the first and second repeated number of times are different; and
combine a same sub-unit received its respective repeated number of times to form a composite sub-unit to recover the transport block.

US Pat. No. 10,992,326

BUFFER MANAGEMENT FOR ADAPTIVE DIGITAL PREDISTORTION

NanoSemi, Inc., Waltham,...

1. A method for digital compensation comprising:selecting at least one location of a selection buffer, the selection buffer storing a plurality of observed output samples obtained from one or more of output batches produced by a signal chain, according to a pseudo-random buffer selection process, and accessing at least one observed output sample, wherein the at least one observed output sample is generated in response to corresponding one or more input samples provided to a digital compensator applying to one or more input batches a plurality of basis functions, weighed by compensator coefficients, to produce intermediary samples, with the one or more intermediary samples provided to the signal chain;
computing an approximation of a sub-gradient value computed according to a stochastic gradient process to derive a sub-gradient of an error function representing a relationship between the accessed at least one observed output sample stored in the pseudo randomly selected at least one location of the selection buffer, and at least one of: the corresponding one or more or more input samples, or one or more intermediate samples, produced by the digital compensator, corresponding to the pseudo randomly selected at least one location of the selection buffer storing the at least one observed output sample;
computing updated values for the compensator coefficients based on current values of the compensator coefficients and the computed approximation of the sub-gradient value computed according to the sub-gradient of the error function; and
replacing, at a time instance determined independently of the pseudo-random buffer selection process, content of at least a portion of the selection buffer with different one or more observed output samples responsive to one or more other input samples.

US Pat. No. 10,992,325

OPEN CAVITY SYSTEM FOR DIRECTED AMPLIFICATION OF ACOUSTIC SIGNALS

Elwha LLC, Bellevue, WA ...

1. An apparatus for transmission of acoustic signals between a transmitter and a receiver, the apparatus comprising:an electrical signal generator for generating low frequency electrical signals;
a transmitter comprising a first retroreflector having a first array of subwavelength retroreflective elements at one end of an open cavity for transmitting the low frequency electrical signals and a first electroacoustic transducer adjacent to the first retroreflector for converting the low frequency electrical signals to acoustic signals; and
a receiver comprising a second retroreflector having a second array of subwavelength retroreflective elements at an opposite end of the open cavity, the acoustic signals being in form of a beam directed toward the receiver.

US Pat. No. 10,992,322

DATA STORAGE SYSTEM AND ASSOCIATED METHOD FOR SAVING STORAGE SPACE AND ELIMINATING DATA ERRORS

Silicon Motion, Inc., Hs...

1. A data storage system, comprising:a processing circuit, arranged to receive a first logical block address (LBA) from a host;
a lookup table (LUT), arranged to store a storage address mapping to the first LBA;
a decoding circuit, arranged to utilize the storage address to read storage data from a storing circuit, and decode a first data sector in the storage data according to an error checking and correcting code in the storage data, wherein the first data sector at least comprises a second LBA and a cyclic redundancy check code;
a first checking circuit, arranged to determine whether the first LBA is equal to the second LBA in order to determine correctness of the storage data; wherein the first checking circuit determines correctness of the storage data according to the cyclic redundancy check code; the first data sector further comprises a data byte; and the first checking circuit combines the data byte, the second LBA and the cyclic redundancy check code into a second data sector; and
a second checking circuit, arranged to receive the second data sector from the first checking circuit, determine correctness of the data byte according to the cyclic redundancy check code in the second data sector, and remove the second LBA in the second data sector in order to output the data byte to the host without the second LBA.

US Pat. No. 10,992,320

COMMUNICATION METHOD AND SYSTEM WITH ON DEMAND TEMPORAL DIVERSITY

X DEVELOPMENT LLC, Mount...

1. A method comprising:receiving, by one or more processors of a communication device, an input signal;
decoding, by the one or more processors, the input signal to obtain output data;
identifying, by the one or more processors, one or more errors in the input signal and locations of the one or more errors;
producing, by the one or more processors, one or more erasures in the output data at the locations of the one or more errors;
de-interleaving, by the one or more processors, the output data in the input signal;
correcting, by the one or more processors, the one or more erasures to obtain corrected data; and
combining, by the one or more processors, the corrected data and the output data to form complete corrected data.

US Pat. No. 10,992,319

CODE WORD GENERATING METHOD, ERRONEOUS BIT DETERMINING METHOD, AND CIRCUITS THEREOF

SHENZHEN GOODIX TECHNOLOG...

1. A method for generating a code word, comprising:respectively performing a Hamming operation for an information symbol having an even weight and an information symbol having an odd weight to acquire a check symbol configured for the information symbol having an even weight and a check symbol configured for the information symbol having an odd weight;
respectively generating a code word based on the information symbol having an even weight and the information symbol having an odd weight and the check symbols configured therefor, and
performing an even parity for the code word, and transmitting the information symbol having the even weight to the first Exclusive OR unit such that an Exclusive OR operation is performed between the information symbol having the even weight and the first Hamming matrix,
wherein the respectively performing a Hamming operation for an information symbol having an even weight and an information symbol having an odd weight to acquire a check symbol configured for the information symbol having an even weight and a check symbol configured for the information symbol having an odd weight comprises: respectively performing an Exclusive OR operation for the information symbol having an even weight and the information symbol having an odd weight with an assigned Hamming matrix to acquire different check symbols configured for the information symbol having an even weight and for the information symbol having an odd weight respectively,
wherein the respectively performing an Exclusive OR operation for the information symbol having an even weight and the information symbol having an odd weight with an assigned Hamming matrix to acquire different check symbols configured for the information symbol having an even weight and for the information symbol having an odd weight respectively comprises:
respectively performing the Exclusive OR operation for the information symbol having an even weight with a first Hamming matrix and a second Hamming matrix to acquire the check symbol configured for the information symbol having an even weight; and performing the Exclusive OR operation for the information symbol having an odd weight with the second Hamming matrix to acquire the check symbol configured for the information symbol having an odd weight; or
respectively performing the Exclusive OR operation for the information symbol having an even weight with a full-code Hamming matrix to acquire the check symbol configured for the information symbol having an even weight; and performing the Exclusive OR operation for the information symbol having an odd weight with the second Hamming matrix to acquire the check symbol configured for the information symbol having an odd weight.

US Pat. No. 10,992,318

CODING METHOD AND APPARATUS, AND DEVICE

HUAWEI TECHNOLOGIES CO., ...

1. A method for coding, comprising:dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, wherein a subchannel location in each subset belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed;
determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar code based on the at least two mutually exclusive subsets; and
coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set.

US Pat. No. 10,992,317

LOW DENSITY PARITY CHECK ENCODER HAVING LENGTH OF 64800 AND CODE RATE OF 5/15, AND LOW DENSITY PARITY CHECK ENCODING METHOD USING THE SAME

ELECTRONICS AND TELECOMMU...


US Pat. No. 10,992,316

ZERO PADDING APPARATUS FOR ENCODING FIXED-LENGTH SIGNALING INFORMATION AND ZERO PADDING METHOD USING SAME

Electronics and Telecommu...

1. A zero padding method, comprising:deciding a number of groups whose all bits are to be filled with 0 using a difference between a length of an LDPC information bit string and a length of a BCH-encoded bit string;
selecting the groups using a shortening pattern order;
filling all the bits of the groups with 0; and
generating the LDPC information bit string by filling at least a part of remaining groups which are not filled with 0, with the BCH-encoded bit string,
wherein the shortening pattern order corresponds to an order of a 5th group indexed as 4, a 2nd group indexed as 1, a 6th group indexed as 5, a 3rd group indexed as 2, a 9th group indexed as 8, a 7th group indexed as 6, a 1st group indexed as 0, an 8th group indexed as 7, and a 4th group indexed as 3.

US Pat. No. 10,992,315

BIT BLOCK STREAM BIT ERROR DETECTION METHOD AND DEVICE

Huawei Technologies Co., ...

1. A method, comprising:sending a first boundary bit block, wherein the first boundary bit block is usable to distinguish N bit blocks to be subsequently sent, and N is a positive integer;
sequentially sending bit blocks of the N bit blocks until the N bit blocks are sent;
determining a first parity check result and a second parity check result, wherein a check object of the first parity check result comprises m consecutive bits of each bit block in the N bit blocks, a check object of the second parity check result comprises n consecutive bits of each bit block in the N bit blocks, and m or n is greater than or equal to 2; and
sending a second boundary bit block, the first parity check result, and the second parity check result, wherein the second boundary bit block is usable to distinguish the sent N bit blocks.

US Pat. No. 10,992,314

RESIDUE NUMBER SYSTEMS AND METHODS FOR ARITHMETIC ERROR DETECTION AND CORRECTION

Olsen IP Reserve, LLC, H...

1. A method for performing error correction of an arithmetic result in a residue number format, the arithmetic result having one or more digits in error, the method comprising:generating a plurality of trial digit sets, each of the plurality of trial digit sets excluding one or more digits of the arithmetic result and comprising a test value in a distinct number system;
comparing each of the plurality of trial digit sets to a positive range value, the positive range value encoded in a plurality of distinct number systems;
comparing each of the plurality of trial digit sets to an associated distinct negative range value, each associated distinct negative range value having a distinct negative number range and encoded in a distinct number system; and
base extending one or more excluded digits associated with at least one of the plurality of trial digit sets to generate one or more base extended digits when the at least one of the plurality of trial digit sets is less than the positive range value or when the at least one of the plurality of trial digit sets is greater than the associated distinct negative range value;
applying a correction constant to the one or more base extended digits when the at least one of the plurality of trial digit sets is greater than the associated distinct negative range value thereby creating one or more corrected base extended digits;
wherein a corrected arithmetic result comprises the arithmetic result excluding the one or more digits in error and including the one or more corrected base extended digits.

US Pat. No. 10,992,313

READING AND WRITING COMPRESSED DATA USING LONG-TERM STORAGE

International Business Ma...

1. A method of storing data on a storage medium, the method comprising:receiving, in a volatile memory, one or more records from a host system, the records compressed in a first compression format native to the host system;
identifying, an incompatibility between the first compression format of the one or more records in the volatile memory and a first operation of a storage system, wherein the identified incompatibility is a first compression format that eliminates a uniqueness of a string of characters, and wherein the first operation is a search based on a character string;
decompressing, by the storage system, based on the first compression format, and in response to the identified incompatibility, the received records;
compressing, in a volatile memory and in a second compression format, the decompressed records; and
storing, by the storage system, the second compression format records onto the storage medium.

US Pat. No. 10,992,312

SEMICONDUCTOR DEVICE AND OPERATING METHOD OF MATCHING HARDWARE RESOURCE TO COMPRESSION/DECOMPRESSION ALGORITHM

Samsung Electronics Co., ...

1. A method of operating a semiconductor device, the method comprising:receiving a compression request or a decompression request for data;
acquiring context information on the semiconductor device, in response to receiving the compression request or the decompression request for the data;
selecting a compression algorithm for compressing or decompressing the data, based on the context information, wherein the context information is information of a state change;
selecting a hardware resource with features that best match the selected compression algorithm from a first hardware resource and a second hardware resource in the semiconductor device, based on resource information, wherein the first hardware resource and the second hardware resource are heterogeneous hardware resources, and wherein the resource information is information on features of the first hardware resource and the second hardware resource, respectively, and comprises at least information on respective algorithms that are supported by each of the first hardware resource and the second hardware resource; and
compressing or decompressing the data using the selected compression algorithm and the selected hardware resource.

US Pat. No. 10,992,310

RECEIVER FOR A TELECOMMUNICATION SYSTEM

HUAWEI TECHNOLOGIES CO., ...

1. A receiver, comprising:an analog baseband (ABB) filter stage including an ABB filter stage input configured to receive an analog baseband (BB) signal and an ABB filter stage output configured to provide a filtered analog BB signal;
an analog-to-digital converter (ADC) stage, including:
an ADC stage input configured to receive the filtered analog BB signal and an ADC stage output configured to provide a digital BB signal; and
an ADC comprising an ADC input configured to receive the filtered analog BB signal or a signal derived therefrom as an ADC input signal, and wherein the ADC is configured to perform an analog-to-digital (A/D) conversion of the ADC input signal to derive the digital BB signal;
a first feedback path configured to feedback the filtered analog BB signal to the ABB filter stage; and
a second feedback path configured to feedback the digital BB signal to the ABB filter stage, wherein the second feedback path comprises a first feedback digital-to-analog (D/A) converter.

US Pat. No. 10,992,308

IN-SITU MEASUREMENT OF THE DELAY BETWEEN THE ENVELOPE AND THE RF SIGNAL IN ENVELOPE-TRACKING SYSTEMS

QUALCOMM Incorporated, S...

1. A transmitter, comprising:a power amplifier configured to amplify an RF input signal to form an RF output signal;
an envelope-tracking power supply configured to provide an envelope-tracking power supply voltage for the power amplifier; and
a delay measurement circuit configured to measure a delay between an input envelope of the RF input signal and an output envelope of the RF output signal to provide a measured delay.

US Pat. No. 10,992,302

DETECTOR CIRCUIT

UNIVERSITY COLLEGE DUBLIN...

1. A waveform synthesizer comprising:a controllable oscillator for generating an oscillator waveform having an oscillator cycle;
a reference input for accepting a reference signal having a reference cycle; and
a waveform detector coupled to said oscillator and said reference input, wherein said waveform detector is arranged to sample said waveform in response to said reference input and to determine waveform information about said oscillator, wherein said waveform information is operative to adjust said controllable oscillator.

US Pat. No. 10,992,301

CIRCUIT AND METHOD FOR GENERATING TEMPERATURE-STABLE CLOCKS USING ORDINARY OSCILLATORS

Microsemi Semiconductor U...

1. A circuit for generating a temperature-stable clock comprising:a first crystal oscillator;
a second crystal oscillator;
an input for a reference clock source;
a clock output;
a first phase acquisition circuit coupled to an output of the first crystal oscillator and to an output of the second crystal oscillator;
a second phase acquisition circuit coupled to the input for the reference clock source and to an output of the second crystal oscillator;
a first digital phase locked loop (DPLL) coupled to an output of the first phase acquisition circuit;
a crystal oscillator variation estimator coupled to an output of the first DPLL; and
a second DPLL coupled to an output of the second phase acquisition circuit, the second DPLL including:
a phase-frequency detector having a first input coupled to the output of the second phase acquisition circuit;
a loop filter;
a frequency subtractor having a first input coupled to an output of the loop filter and a second input coupled to an output of the crystal oscillator variation estimator; and
a digital controlled oscillator (DCO) coupled to an output of the frequency subtractor, an output of the DCO coupled to a second input of the phase-frequency detector and coupled to the clock output.

US Pat. No. 10,992,298

METHOD AND SYSTEM FOR PROVIDING WIRELESS FPGA PROGRAMMING DOWNLOAD VIA A WIRELESS COMMUNICATION BLOCK

GOWIN Semiconductor Corpo...

1. A method of programming a field programmable gate array (“FPGA”) containing a wireless communication block (“WCB”) comprising:detecting an FPGA access request for initiating an FPGA reconfiguration by the WCB from a remote system via a wireless communications network;
receiving a configuration bitstream for FPGA programming by the WCB from the remote system via the wireless communications network;
forwarding the configuration bitstream to a configuration download block (“CDB”) for initiating a configuration process; and
programming, by the CDB, at least a portion of configurable logic blocks (“LBs”) in the FPGA in response to the configuration bitstream.

US Pat. No. 10,992,297

DEVICE COMPRISING FORCE SENSORS

Cirrus Logic, Inc., Aust...

1. A device, comprising:a pair of force sensors located for detecting a user squeeze input; and
a controller operable in a squeeze detection operation to detect the user squeeze input based on a cross-correlation between respective sensor signals originating from the pair of force sensors,
wherein at least one said pair of force sensors is part of a group of force sensors located on the device for detecting the user squeeze input corresponding to the group, wherein:
said group comprises force sensors s1, s2, s3 and s4;
the sensor signals originating from the group are digital signals s1(n), s2(n), s3(n) and s4(n) corresponding respectively to the force sensors s1, s2, s3 and s4 and each comprising a series of numbered samples, where n is the sample number; and
the squeeze detection operation for said group comprises calculating correlation coefficients ?1(n) and ?2(n) based on the equations:
?1(n)=?·?1(n?1)+(1??)·s1(n)·s2(n)
?2(n)=?·?2(n?1)+(1??)·s3(n)·s4(n)where ? is a smoothing parameter.

US Pat. No. 10,992,296

CIRCUIT ARRANGEMENT FOR THE TEMPERATURE-DEPENDENT ACTUATION OF A SWITCHING ELEMENT

Robert Bosch GmbH, Stutt...

1. A circuit arrangement for the temperature-dependent actuation of a first switching element, the current arrangement comprising:an input connection for receiving an input potential, an output connection for transferring an output potential to a first control connection of the first switching element, a temperature-dependent component, a second switching element, and a first resistor;
wherein the first resistor is connected in series with the temperature-dependent component between the input connection and the output connection, the second switching element between the input connection and the output connection, and the second control connection of the second switching element is connected to the center tap between the first resistor and the temperature-dependent component, and
the temperature-dependent component is connected between the input connection and the output connection.

US Pat. No. 10,992,295

CONTROLLING A HIGH-SIDE SWITCHING ELEMENT USING A BOOTSTRAP CAPACITOR

RENESAS ELECTRONICS CORPO...

1. A monolithic integrated circuit for controlling a high-side switching element for a load using a bootstrap capacitor, the integrated circuit comprising:a first supply voltage input for receiving a first input supply voltage V1;
a second supply voltage input for receiving a second, current-limited input supply voltage VCP;
a voltage-sensing input for receiving a source voltage;
a first output for providing a drive signal VG to the switching element;
a second output for providing a charging signal VBS to the bootstrap capacitor;
a pre-driver for generating the drive signal, the pre-driver having:
a voltage input; and
an output which is coupled to the first output; and
a power supply control section comprising:
first and second switches;
wherein the first and second switches are arranged in series between the first supply voltage input and the second output, the second supply voltage input is coupled to a node input between the first and second switches, and the node is coupled to the voltage input of the pre-driver, and
wherein the first and second switches are selectively operable following switching of the switching element from an ON state to an OFF state and in response to a determination that the source voltage is below a predetermined level, to decouple the second output and, thereafter, in response to determination that the source voltage is above the predetermined level to couple the second output to the first supply voltage input.

US Pat. No. 10,992,294

DRIVER DEVICE

Rohm Co., Ltd., Kyoto (J...

1. A driver device, switch-driving a target transistor connected in series to a load, and characterized in comprising: a gate driver circuit, being a circuit controlling a gate voltage of the target transistor, rendering a slew rate of the gate voltage to be adjustable at multiple steps while the gate voltage changes; and a slew rate setting circuit, adjustably setting the slew rate according to a temperature signal corresponding to a target temperature, wherein the target temperature has a relationship with a temperature of the target transistor, wherein the target temperature rises or drops as a temperature of the target transistor rises or drops, or the temperature of the target transistor rises and drops as the target temperature rises or drops.

US Pat. No. 10,992,293

DEVICE WITH ISOLATION BARRIER AND FAULT DETECTION

TEXAS INSTRUMENTS INCORPO...

1. A device, comprising:a first semiconductor die comprising a first clock signal generator; and
a second semiconductor die comprising a fault detection circuit, the fault detection circuit comprising:
a second clock signal generator;
a first counter coupled to the second clock signal generator;
multiple storage devices coupled to the second clock signal generator and to the first counter;
a logic gate coupled to the multiple storage devices;
a second counter coupled to the logic gate and to the first clock signal generator; and
a comparator coupled to the logic gate and the second counter.

US Pat. No. 10,992,291

TRUE RANDOM NUMBER GENERATOR BASED ON VOLTAGE-CONTROLLED OSCILLATOR

Ningbo University, Zheji...

1. A true random number generator based on a voltage-controlled oscillator, wherein the true random number generator comprises:a thermal noise generator;
a ring oscillator;
the voltage-controlled oscillator;
a D flip-flop; and
a post-processing circuit,
wherein the D flip-flop has a clock terminal, an input terminal and an output terminal, an output terminal of the thermal noise generator is connected with an input terminal of the voltage-controlled oscillator, an output terminal of the voltage-controlled oscillator is connected with the clock terminal of the D flip-flop, an output terminal of the ring oscillator is connected with the input terminal of the D flip-flop, the output terminal of the D flip-flop is connected with an input terminal of the post-processing circuit, and an input terminal of the thermal noise generator is connected with a reference level,
and the thermal noise generator comprises: a digital-analog converter; an operational amplifier; a first resistor; a second resistor; a third resistor; and a fourth resistor,
wherein an input terminal of the digital-analog converter is connected with one terminal of the third resistor, and a connecting terminal of the input terminal of the digital-analog converter and the one terminal of the third resistor is the input terminal of the thermal noise generator,
an output terminal of the digital-analog converter is connected with one terminal of the first resistor, the other terminal of the first resistor is connected with a non-inverting input terminal of the operational amplifier, one terminal of the second resistor is connected with an inverting input terminal of the operational amplifier, and the other terminal of the third resistor and the other terminal of the second resistor are connected with one terminal of the fourth resistor,
the other terminal of the fourth resistor is connected with an output terminal of the operational amplifier, and a connecting terminal of the other terminal of the fourth resistor and the output terminal of the operational amplifier is the output terminal of the thermal noise generator.

US Pat. No. 10,992,290

LEVEL SHIFTER AND SEMICONDUCTOR DEVICE INCLUDING THE SAME AND OPERATION METHOD THEREOF

SAMSUNG ELECTRONICS CO., ...

1. A semiconductor device comprising:a level shifter configured to output an output voltage in response to an input voltage, the output voltage having a voltage level range different from a voltage level range of the input voltage, wherein the level shifter comprises:
a current mirror connected to a driving voltage terminal and including first through third mirror transistors, the current mirror configured to copy a reference current flowing through the first mirror transistor to the second mirror transistor;
a current mirror control circuit electrically connected to the current mirror by a sink node and comprising a plurality of control transistors configured to control the current mirror; and
an output circuit configured to output the output voltage based on a voltage level of the sink node,
wherein a first control transistor of the plurality of control transistors is configured to receive the output voltage fed back to a gate terminal of the first control transistor,
wherein a second control transistor of the plurality of control transistors is configured to receive an inverted output voltage fed back to a gate terminal of the second control transistor, and
wherein second source/drain terminals of the first through third mirror transistors are connected to the driving voltage terminal, a first source/drain terminal of the third mirror transistor is connected to gate terminals of the first and second mirror transistors, and a gate terminal of the third mirror transistor is connected to the sink node.

US Pat. No. 10,992,287

ADAPTIVE HARMONIC CANCELLATION

Rockwell Collins, Inc., ...

1. An adaptive harmonic cancellation circuit comprising:a harmonic generator circuit configured to receive an interference signal from a source of the interference signal, and generate a reference harmonic of the interference signal;
a harmonic prediction circuit coupled to the harmonic generator circuit, the harmonic prediction circuit configured to:
receive an input signal at a frequency, the input signal including a target signal and a radiated harmonic of the interference signal, the input signal based on a radio frequency signal received by an antenna at the frequency, and
generate a predicted harmonic of the interference signal by modifying the reference harmonic of the interference signal according to the radiated harmonic of the interference signal in the input signal; and
a cancellation circuit coupled to the harmonic prediction circuit, the cancellation circuit configured to obtain the target signal at the frequency of the radio frequency signal received by the antenna by cancelling the predicted harmonic from the input signal.

US Pat. No. 10,992,286

SIGNAL SWITCHING SYSTEMS AND MODULES AND DEVICES USING SAME

SKYWORKS SOLUTIONS, INC.,...

1. A signal switch comprising:a first transistor coupled between first and second nodes;
a plurality of second transistors coupled in series between the first and second nodes and in parallel with the first transistor; and
a first shunt path including a first shunt transistor and a first inductor connected in series between a reference node and a first connection point that connects two of the plurality of second transistors in series between the first and second nodes.

US Pat. No. 10,992,285

GROUP DELAY COMPENSATION FILTER

FUJITSU LIMITED, Kawasak...

1. A group delay compensation filter comprising:a waveguide that has a first slot and that is configured to transmit a signal; and
a first dielectric resonator that includes:
a first dielectric,
a first metal layer formed over a surface of the first dielectric, and a first opening provided in the first metal layer, wherein
the first dielectric resonator is in contact with the waveguide with the first opening coupled to the first slot, and wherein
the first dielectric resonator is configured to compensate group delay in a first frequency band of the signal.

US Pat. No. 10,992,282

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS WITH ELECTRODES HAVING A SECOND LAYER OF VARIABLE WIDTH

Resonant Inc., Austin, T...

1. An acoustic resonator device comprising:a substrate having a surface;
a single-crystal piezoelectric plate having front and back surfaces, the back surface attached to the surface of the substrate except for a portion of the single-crystal piezoelectric plate forming a diaphragm that spans a cavity in the substrate; and
an interdigital transducer (IDT) formed on the front surface of the single-crystal piezoelectric plate, interleaved fingers of the IDT disposed on the diaphragm,
wherein the interleaved fingers comprise a first layer adjacent the diaphragm and a second layer over the first layer opposite the diaphragm, and wherein a width of the second layer varies along a length of each finger.

US Pat. No. 10,992,281

BULK ACOUSTIC WAVE RESONATOR AND METHOD OF MANUFACTURING THE SAME

Samsung Electro-Mechanics...

1. A bulk acoustic wave resonator comprising:a substrate;
a lower electrode disposed on the substrate;
a piezoelectric layer disposed to cover at least a portion of the lower electrode;
an upper electrode disposed to cover at least a portion of the piezoelectric layer; and
a passivation layer disposed to cover at least a portion of the upper electrode,
wherein the passivation layer comprises a non-trimming-processed portion disposed outside an active region of the bulk acoustic wave resonator in which portions of the lower electrode, the piezoelectric layer, and the upper electrode overlap, and having a thickness that is thicker than a thickness of a portion of the passivation layer disposed in the active region,
wherein the portion of the passivation layer disposed in the active region constitutes an entirety of the passivation layer disposed in the active region.

US Pat. No. 10,992,280

WIRELESS COMMUNICATION APPARATUS

LAPIS SEMICONDUCTOR CO., ...

1. A wireless communication apparatus comprising:a shared antenna shared for communication and power reception;
an impedance matching circuit connected to said shared antenna and having a first switch element;
a communication circuit connected to said impedance matching circuit;
a second switch element connected to said first switch element; and
an impedance matching adjustment circuit configured to switch an on/off state of each of said first switch element and said second switch element at the time of communication and at the time of power reception.

US Pat. No. 10,992,279

STRUCTURE AND METHOD OF MANUFACTURE FOR ACOUSTIC RESONATOR OR FILTER DEVICES USING IMPROVED FABRICATION CONDITIONS AND PERIMETER STRUCTURE MODIFICATIONS

Akoustis, Inc., Huntersv...

1. A method for fabricating an acoustic resonator or filter device, the method comprising:providing a substrate having a substrate surface region;
forming a piezoelectric layer overlying the substrate surface region, the piezoelectric layer having a top piezoelectric surface region and a bottom piezoelectric surface region;
forming a topside metal electrode overlying the top piezoelectric surface region;
forming a topside micro-trench within a portion of the piezoelectric layer;
forming a substrate backside cavity region within the substrate;
forming a backside metal electrode underlying or in proximity of the bottom piezoelectric surface region within the substrate backside cavity region, the backside metal electrode being electrically coupled to a micro-via configured within the topside micro-trench; and
removing a portion of the piezoelectric layer to form a first topside groove on the top piezoelectric surface region;
wherein forming the topside metal electrode and the backside metal electrode includes an edge profile fabrication process to form one or more topside metal electrode edges and one or more backside metal electrode edges, wherein the edge profile fabrication process can be selected from the following: a patterned sputtering process, a patterned evaporation and lift-off process, an evaporation and patterned etching process, a trimming process, a laser ablation process, and an ion beam milling process.

US Pat. No. 10,992,278

MULTI-STAGE LNA WITH REDUCED MUTUAL COUPLING

INNOPHASE INC., San Dieg...

1. An apparatus comprising:at least two variable gain amplifier stages, each variable gain amplifier stage configured to accept an input signal and to provide a load driving signal;
a tunable bandpass filter connected as a load to each variable gain amplifier stage, wherein each tunable bandpass filter includes:
a resonant tank, each resonant tank including an inductor, wherein each inductor of each resonant tank is oriented in orthogonal relation with respect to each respective longitudinal axis of each next inductor, the orthogonal relation of the respective longitudinal axes configured to reduce mutual coupling between the tunable bandpass filters, and
at least one cross-coupled compensation transistor pair biased in a subthreshold region configured to add a transconductance component as a function of the respective load driving signal for the respective tunable bandpass filter;
and,
a controller circuit configured to tune each tunable bandpass filter.

US Pat. No. 10,992,277

VARIABLE GAIN AMPLIFIER WITH EMBEDDED EQUALIZATION FOR UNIFORM TUNING

QUALCOMM INCORPORATED, S...

1. An amplifier comprising:a first transistor having a gate coupled to a first input node of the amplifier;
a first source degeneration circuit;
a second transistor coupled between the first source degeneration circuit and a source of the first transistor, a gate of the second transistor being configured to receive a gain control signal from a controller; and
a current source circuit coupled to the source of the first transistor, wherein the current source circuit is configured to receive the gain control signal from the controller for simultaneously adjustment of the current source circuit and the second transistor.

US Pat. No. 10,992,276

METADATA FOR DUCKING CONTROL

APPLE INC., Cupertino, C...

1. A method for encoding audio, comprising:encoding an audio signal having a first channel group and a plurality of remaining channel groups; and
providing a ducking gain sequence that is associated with i) the first channel group which comprises a narration channel, or ii) a base channel layout or a downmix identifier wherein the downmix identifier controls inclusion of the first channel group for playback, wherein the ducking gain sequence and the downmix identifier are part of metadata associated with the encoded audio signal, and wherein the ducking gain sequence overrides a fading effect associated with the encoded audio signal.

US Pat. No. 10,992,275

AUTOMATIC GAIN CONTROL CIRCUIT OF TRANSIMPEDANCE AMPLIFIER

XIAMEN UX HIGH-SPEED IC C...

1. An automatic gain control circuit of a transimpedance amplifier, comprising a transimpedance amplifier TIA1, a transimpedance amplifier TIA2, an NMOS transistor Q1, an NMOS transistor Q2, an error amplifier U3, and a bias current source Ib; the transimpedance amplifier TIA2 and the transimpedance amplifier TIA1 having an identical circuit structure, size and process parameter; the NMOS transistor Q1 and the NMOS transistor Q2 having an identical turn-on voltage threshold;an input terminal of the transimpedance amplifier TIA1 being connected to a drain of the NMOS transistor Q1; an output terminal of the transimpedance amplifier TIA1 being connected to a source of the NMOS transistor Q1;
an input terminal of the transimpedance amplifier TIA2 being connected to a drain of the NMOS transistor Q2; an output terminal of the transimpedance amplifier TIA2 being connected to a source of the NMOS transistor Q2;
a positive input terminal and a negative input terminal of the error amplifier U3 being connected to the input terminal and the output terminal of the transimpedance amplifier TIA2, respectively; an output terminal of the error amplifier U3 being connected to a gate of the NMOS transistor Q1 and a gate of the NMOS transistor Q2;
an input terminal of the bias current source Ib being connected to a working power supply VDD, an output terminal of the bias current source Ib being connected to the positive input terminal of the error amplifier U3 and the drain of the MOS transistor Q2.

US Pat. No. 10,992,274

AUDIO SIGNAL PROCESSING

Cirrus Logic, Inc., Aust...

1. An audio apparatus comprising a first component, the first component comprising:an input for receiving a source audio data stream; and
first and second signal paths for generating first and second audio signals from said source audio data stream and outputting said first and second audio signals,
wherein the first signal path is configured to output a substantially unmodified version of the source audio data stream as the first audio signal;
wherein the second signal path comprises at least one module for adding to or replacing part of audio content of the source audio data stream with additional or replacement audio content comprising an audio alert signal; and
wherein the audio apparatus is configured to output both said first audio signal and said second audio signal simultaneously as separate audio signals.

US Pat. No. 10,992,272

HIGH-FREQUENCY MODULE WITH CONNECTION INTERFACE

1. A high-frequency module, comprising:an electronic unit;
a housing, which at least partially encloses the electronic unit, and the electronic unit is arranged at least partially in an interior space of the housing;
an internal connector, which is arranged on the housing and coupled to the electronic unit such that electrical signals can be transmitted between the electronic unit and the internal connector;
the internal connector being constructed integrally with at least a part of the housing;
a first waveguide section, which rests against an outer surface of the housing;
the first waveguide section comprising a first half-shell and a second half-shell; and
the housing being arranged between the first half-shell and the second half-shell.

US Pat. No. 10,992,271

AMPLIFIER WITH INPUT BIAS CURRENT CANCELLATION

TEXAS INSTRUMENTS INCORPO...

1. An amplifier, comprising:a first input transistor coupled to a first input terminal;
a second input transistor coupled to a second input terminal and the first input transistor;
a first cascode transistor coupled to the first input transistor;
a second cascode transistor coupled to the second input transistor and the first cascode transistor;
a first current mirror circuit coupled to the first cascode transistor, the second cascode transistor, and the first input terminal;
a second current mirror circuit coupled to the first cascode transistor, the second cascode transistor, and the second input terminal;
a third input transistor coupled to a first input terminal;
a fourth input transistor coupled to a second input terminal and the third input transistor;
a third cascode transistor coupled to the third input transistor and the first cascode transistor;
a fourth cascode transistor coupled to the fourth input transistor, the second cascode transistor, and the third cascode transistor;
a third current mirror circuit coupled to the third cascode transistor, the fourth cascode transistor, and the first input terminal; and
a fourth current mirror circuit coupled to the third cascode transistor, the fourth cascode transistor, and the second input terminal.

US Pat. No. 10,992,270

POWER AMPLIFIER APPARATUS SUPPORTING REVERSE INTERMODULATION PRODUCT CANCELLATION

Qorvo US, Inc., Greensbo...

1. A power amplifier apparatus comprising:an antenna port coupled to at least one antenna;
an amplifier circuit comprising an amplifier input and an amplifier output, the amplifier circuit configured to amplify a radio frequency (RF) signal received via the amplifier input and provide the RF signal to the antenna port via the amplifier output for transmission via the at least one antenna; and
a control circuit configured to:
determine whether at least one reverse intermodulation product (rIMD) exists at the amplifier output based on predetermined characteristics of the RF signal; and
cause the at least one rIMD to be suppressed to a defined threshold at the antenna port in response to determining that the at least one rIMD exists at the amplifier output.

US Pat. No. 10,992,269

COMPOUND SEMICONDUCTOR DEVICE WITH HIGH POWER AND REDUCED OFF-LEAKAGE AND METHOD FOR MANUFACTURING THE SAME

FUJITSU LIMITED, Kawasak...

1. A compound semiconductor device, comprising:a first compound semiconductor layer containing a p-type impurity;
a second compound semiconductor layer disposed over the first compound semiconductor layer and containing InGaN;
an electron transit layer disposed over the second compound semiconductor layer; and
an electron supply layer disposed over the electron transit layer,
wherein each of the electron transit layer and the second compound semiconductor layer includes carbon, and a carbon concentration in the electron transit layer is lower than a carbon concentration in the second compound semiconductor layer.

US Pat. No. 10,992,268

RADIO FREQUENCY AMPLIFICATION DEVICE CAPABLE OF DETECTING THE FREQUENCY BAND

RichWave Technology Corp....

1. A radio frequency signal amplification device comprising:a first amplification circuit having an input terminal, an output terminal, and a plurality of amplifiers and configured to amplify a radio frequency (RF) signal received from the input terminal, and generate a first amplified radio frequency signal to the output terminal;
a first impedance matching circuit coupled to the input terminal or the output terminal of the first amplification circuit, and configured to receive the radio frequency signal and provide an impedance matching the radio frequency signal, or receive the first amplified radio frequency signal and provide an impedance matching the first amplified radio frequency signal;
a frequency detection circuit configured to determine a frequency band the radio frequency signal belongs to; and
a control circuit configured to adjust the impedance of the first impedance matching circuit according to the frequency band, and is further configured to enable a predetermined number of amplifiers in the first amplification circuit according to the frequency band and/or an operation mode of the radio frequency signal amplification device.

US Pat. No. 10,992,267

POWER AMPLIFIER MODULE, FRONTEND CIRCUIT, AND COMMUNICATION DEVICE

MURATA MANUFACTURING CO.,...

1. A power amplifier module, comprising:a substrate having a ground pattern layer;
a first power amplifier element disposed on the substrate and having a collector, an emitter, and a first input terminal;
a second power amplifier element disposed on the substrate and having a collector, an emitter, and a second input terminal connected to the collector of the first power amplifier element;
a first bypass capacitor connected to the collector of the second power amplifier element;
a first conductive pattern provided between the first power amplifier element and the ground pattern layer and connecting the emitter of the first power amplifier element to the ground pattern layer;
a second conductive pattern provided between the first bypass capacitor and the ground pattern layer and connecting the first bypass capacitor to the ground pattern layer; and
a third conductive pattern provided between the emitter of the first power amplifier element and the ground pattern layer, and between the first bypass capacitor and the ground pattern layer, and connecting the first conductive pattern to the second conductive pattern.

US Pat. No. 10,992,266

CASCODE AMPLIFIER BIAS

ADVANCED SEMICONDUCTOR EN...

1. A power amplifier circuit comprising:a first transistor including a base configured to receive a first signal;
a second transistor including an emitter connecting to a collector of the first transistor and a collector configured to output a second signal; and
a bias circuit coupling to the first transistor and the second transistor,
wherein the bias circuit is configured to generate a direct current (DC) voltage at the collector of the second transistor about twice a DC voltage at the collector of the first transistor; and
wherein the bias circuit is configured to generate a radio frequency (RF) voltage at the collector of the second transistor about twice a RF voltage at the collector of the first transistor,
wherein the bias circuit further comprises a DC feedback circuit including:
an amplifier including a first input, a second input and an output, the output connected to a base of the second transistor;
a first resistor connected between the collector of the second transistor and the first input of the amplifier; and
a second resistor connected between the first input of the amplifier and ground.

US Pat. No. 10,992,265

MULTI-STAGE PULSE SHAPING NETWORK

ETA Wireless, Inc., Camb...

1. A discrete supply modulation system, a multi-stage pulse shaping network configured to be coupled to a bias terminal of a radio frequency (RF) amplifier, the multi-stage pulse shaping network comprising:(a) a first pulse shaping network (PSN) stage having an input configured to be coupled to a power management circuit (PMC) and having an output;
(b) one or more second PSN stages, each of the one or more second PSN stages physically spaced apart and distant from the first PSN stage and each of the second PSN stages having an input configured to be coupled to the output of the first PSN stage and having an output configured to be coupled to a bias terminal of an RF amplifier; and
(c) a signal path having a first end coupled to the output of the first PSN stage and having a second end coupled to the input of the second PSN stage;
wherein at least one of the first PSN stage and the second PSN stage comprises a reconfigurable filter circuit; and
wherein the reconfigurable filter circuit comprises a switch element coupled between a reactive element and a reference potential such that the impedance of characteristic of the reactive element can be switched into and out of the filter circuit.

US Pat. No. 10,992,264

ENVELOPE TRACKING CIRCUIT AND RELATED APPARATUS

Qorvo US, Inc., Greensbo...

1. An envelope tracking (ET) circuit comprising:at least one first port coupled to at least one first power amplifier circuit configured to amplify a fifth-generation (5G) signal for transmission in at least one 5G band;
at least one second port coupled to at least one second power amplifier circuit configured to amplify an anchor signal for transmission in at least one anchor band;
at least one third port coupled to at least one distributed power amplifier (DPA) circuit configured to amplify the 5G signal for transmission in the at least one 5G band; and
a control circuit configured to:
cause an ET voltage to be provided to a selected port among the at least one first port and the at least one second port for amplifying a selected signal among the 5G signal and the anchor signal; and
cause a non-ET current to be provided to the at least one third port for amplifying the 5G signal.

US Pat. No. 10,992,263

HIGH FREQUENCY YTTRIUM IRON GARNET OSCILLATOR AS WELL AS METHOD OF MANUFACTURING A HIGH FREQUENCY YTTRIUM IRON GARNET OSCILLATOR

1. A high frequency yttrium iron garnet oscillator with a coplanar yttrium iron garnet resonator, wherein the coplanar yttrium iron garnet resonator comprises an yttrium iron garnet sphere, a coplanar coupling structure and a coplanar waveguide, wherein the coplanar coupling structure is integrated with the coplanar waveguide, wherein the coplanar coupling structure and the coplanar waveguide are provided in the same plane, and wherein the coplanar coupling structure is coupled to the yttrium iron garnet sphere.

US Pat. No. 10,992,262

OSCILLATOR CIRCUIT, DEVICE, AND METHOD

TAIWAN SEMICONDUCTOR MANU...

1. An oscillator comprising:a first node configured to have a first bias voltage;
a second node configured to have a second bias voltage;
a reference node configured to have a reference voltage;
an output terminal;
a forward stage comprising a first terminal coupled to the output terminal and a second terminal coupled to one of the first node, the second node, or the reference node, wherein the forward stage comprises a transistor comprising a drain terminal, a source terminal, and a gate and wherein the drain terminal or the source terminal correspond to the first terminal, the gate or the drain terminal correspond to the second terminal, and the drain terminal, the source terminal, or the gate correspond to a third terminal; and
a transformer-coupled band-pass filter (BPF) coupled between the output terminal and the third terminal of the forward stage, the transformer-coupled BPF comprising a center tap coupled to the first node or the second node.

US Pat. No. 10,992,261

SEMICONDUCTOR INTEGRATED CIRCUITRY

SOCIONEXT INC., Yokohama...

1. Semiconductor integrated circuitry, having a layered structure formed on a substrate, the layered structure comprising a plurality of metal layers and via layers, comprising adjacent lower metal layers and adjacent upper metal layers, an upwards direction being defined through the layers away from the substrate,wherein:
a first capacitor is formed from metal structures implemented in at least first, second and third layers of the upper metal layers which are provided at different positions in the upwards direction, respectively, and ordered in the upwards direction, the metal structures forming the first capacitor being sized such that the first capacitor is a relatively high Q capacitor due to a relatively low resistance of those structures;
the metal structures comprise arrangements of strips having widths parallel to the layers, the widths being within one of three ranges of widths, the ranges comprising a lower range of widths, an intermediate range of widths comprising widths larger than those in the lower range of widths, and a higher range of widths comprising widths larger than those in the intermediate range of widths;
first strips among the strips are formed in the first layer and are organised into at least one first comb arrangement having a base strip formed in the first layer and a plurality of finger strips formed in the first layer and extending from the base strip, said base strip and finger strips of the at least one first comb arrangement being strips among the first strips, the widths of the first strips being in the lower range of widths;
second strips among the strips are formed in the second layer and are organised into at least one second comb arrangement having a base strip formed in the second layer and a plurality of finger strips formed in the second layer and extending from the base strip, the widths of the finger strips of the second strips being in the lower range of widths, said base strip and finger strips of the at least one second comb arrangement being strips among the second strips, and the width of the base strip of the at least one second comb arrangement being in the intermediate range of widths;
the strips formed in the third layer have widths in the higher range of widths;
a second capacitor is formed from metal structures implemented in the lower metal layers, which metal structures are sized such that the second capacitor is a relatively low Q capacitor due to a relatively high resistance of those structures;
the plurality of metal layers comprise adjacent intermediate metal layers between the lower metal layers and the upper metal layers;
the first and second capacitors are formed in overlapping areas of the semiconductor integrated circuitry, the overlapping areas being parallel to the layers; and
a shield is formed from metal structures implemented in one or more of the intermediate metal layers connected to a ground voltage supply, wherein the shield extends across at least part of the overlapping areas so as to shield the first capacitor.

US Pat. No. 10,992,260

OSCILLATOR DEVICE

NIHON DEMPA KOGYO CO., LT...

1. An oscillator device comprising:an oscillating unit that includes a crystal resonator to output a frequency signal based on a frequency setting value;
a frequency difference detector that obtains a difference value corresponding to a frequency difference between an external clock signal obtained from outside and a frequency signal output from the oscillating unit;
a temperature detector that detects a temperature of an atmosphere where the crystal resonator is disposed;
a correction value calculator that calculates a frequency correction value to be added to the frequency setting value in order to equalize a frequency of the frequency signal to the frequency corresponding to the frequency setting value;
an addition unit that adds the frequency correction value obtained from the correction value calculator to the frequency setting value input to the oscillating unit; and
a correction coefficient calculator that calculates an aging coefficient and a temperature characteristic coefficient based on a secular change of the difference value obtained in the frequency difference detector and a secular change of the detected temperature detected in the temperature detector, the aging coefficient indicating a changing rate of the frequency correction value per unit time, the temperature characteristic coefficient indicating a changing rate of the frequency correction value per unit temperature, wherein
the correction value calculator calculates the frequency correction value based on the difference value detected in the frequency difference detector during a period where the external clock signal is obtained, and calculates the frequency correction value using the aging coefficient and the temperature characteristic coefficient during a period where the external clock signal is interrupted.

US Pat. No. 10,992,259

OSCILLATOR

Shanghai Huali Microelect...

1. An oscillator, comprising an RC oscillator and a bandgap reference source, wherein:the bandgap reference source provides a reference current for the RC oscillator; and
a temperature coefficient of the reference current provided by the bandgap reference source is adjustable;
the bandgap reference source comprises an operational amplifier, a first PMOS transistor, a second PMOS transistor, a third PMOS transistor, a first PNP transistor, a second PNP transistor, a first resistor, a second resistor, and a third resistor;
resistances of the first resistor and the second resistor are adjustable;
an output of the operational amplifier is connected to gates of the first PMOS transistor, the second PMOS transistor, and the third PMOS transistor;
source terminals of the first PMOS transistor, the second PMOS transistor, and the third PMOS transistor are connected to a working voltage;
a drain terminal of the first PMOS transistor and an emitter of the first PNP transistor are connected to a positive input end of the operational amplifier;
the first resistor is connected between the positive input end of the operational amplifier and a ground,
a drain terminal of the second PMOS transistor is connected to a negative input end of the operational amplifier;
the third resistor is connected between the negative input end of the operational amplifier and an emitter of the second PNP transistor;
the second resistor is connected between the negative input end of the operational amplifier and the ground;
a base and a collector of the first PNP transistor and a base and a collector of the second PNP transistor are all grounded; and
a drain terminal of the third PMOS transistor outputs the reference current.

US Pat. No. 10,992,258

OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE

Seiko Epson Corporation, ...

1. An oscillator comprising:a base substrate having a first electrode;
a temperature control element mounted on the base substrate and having a first pad electrically coupled to the first electrode;
a resonator element having a first major surface and a second major surface in front-back relation with the first major surface, and mounted on the temperature control element in such a way that the second major surface faces the temperature control element;
at least one first bonding wire coupling the first major surface and the first pad together; and
at least one second bonding wire electrically coupling the first pad and the first electrode together such that the first pad acts a single relay electrode pad that connects the first bonding wire and the second bonding wire.

US Pat. No. 10,992,257

STATE OF HEALTH MECHANISMS FOR ENERGY GENERATION SYSTEMS

SolarCity Corporation, S...

1. A method of determining a state of health for a photovoltaic (PV) energy generation system, the method comprising:receiving a measurement of a parameter of a switching element in the PV energy generation system at an instance in time;
referencing a look-up table containing several values of the parameter representing an expected degradation trend across a progression of time for the switching element;
comparing the measurement to an expected value of the expected degradation trend for a period of time corresponding to the instance in time;
determining a performance the switching element is degrading at a rate that exceeds the expected degradation trend by a threshold value based on the comparing; and
changing an amount of energy used to activate the switching element based upon the degradation rate exceeding the threshold value.

US Pat. No. 10,992,256

INTELLIGENT CIRCUIT CONTROL FOR SOLAR PANEL SYSTEMS

Premergy, Inc., Macon, G...

1. A system comprising:a plurality of rechargeable batteries;
one or more transistors configured to connect respective batteries of the plurality of rechargeable batteries in either a series connection or a parallel connection;
a first solar panel configured to charge the plurality of rechargeable batteries;
a second solar panel configured to charge the plurality of rechargeable batteries; and
a controller configured to:
determine that a first electrical output of the first solar panel is greater than a second electrical output of the second solar panel;
cause the second solar panel to be disconnected from the plurality of rechargeable batteries;
determine that a voltage potential of the plurality of rechargeable batteries is greater than a total output voltage, wherein the total output voltage is a sum of the first electrical output and the second electrical output; and
cause a connection between the plurality of rechargeable batteries to be changed from a series connection to a parallel connection based at least in part on the first electrical output, such that the voltage potential of the plurality of rechargeable batteries is equal to or less than the first electrical output.

US Pat. No. 10,992,254

LEAD ASSEMBLY FOR CONNECTING SOLAR PANEL ARRAYS TO INVERTER

Shoals Technologies Group...

1. A lead assembly for use in a solar energy installation including:A. A first drop line and a second drop line, said first drop line terminating in a drop line connector;
B. At least one 30 amp feeder cable terminating in a feeder cable connector, said first drop line and said at least one feeder cable electrically coupled at a nexus;
C. A means for securing said nexus, said securing means selected from the group consisting of compression lug, soldering, splicing, crimping, and combinations thereof;
D. An undermold having an inner surface and an outer surface, both surfaces extending in a longitudinal direction of said at least one feeder cable, said inner surface surrounding and fully encasing said securing means, said inner surface comprised of a first aperture concentric with said securing means and said at least one feeder cable, said first aperture extending continuously through said undermold in said longitudinal direction and having a first diameter, said at least one feeder cable continuously extending through said first aperture, and a second aperture concentric with said first drop line and parallel to said first aperture, said second aperture only partially extending through said undermold in said longitudinal direction, said second aperture having a second diameter smaller than said first diameter, said first drop line extending from said second aperture; and
E. An overmold surrounding said undermold and forming an undermold-overmold interface only at said outer surface, wherein said lead assembly combines power from a plurality of solar arrays and transmits that power to an inverter in a solar energy installation lacking a combiner box between said solar arrays and said inverter, and wherein said lead assembly has a voltage rating of 1500 VDC.

US Pat. No. 10,992,252

INTEGRATED PHOTOVOLTAIC WINDOW AND LIGHT SOURCE

Universal Display Corpora...

1. A device comprising:a window comprising a transparent or translucent glass pane;
an energy and light producing device including at least one transparent photovoltaic device disposed on a first substrate in a first area of an optical path of the glass pane of thea window, and at least one non-transparent Organic Light Emitting Device (OLED) disposed on a second substrate that is disposed in a second area of the optical path of the glass pane of the window, wherein the first substrate and the second substrate are separate transparent substrates that are smaller than the glass pane and are offset from one another, and the at least one non-transparent OLED outputs light;
a controller to control the operation of the at least one non-transparent OLED of the energy and light producing device; and
an energy storage device that is electrically coupled to the controller and the energy and light producing device to store energy generated by the at least one transparent photovoltaic device and to power the at least one non-transparent OLED of the energy and light producing device.

US Pat. No. 10,992,251

INTEGRATED BONDING MID CLAMP DEVICE, SYSTEM, AND METHOD FOR SOLAR PANEL MOUNTING AND GROUNDING

SOLAR FOUNDATIONS USA, IN...

1. An integrated bonding mid clamp device for use with a solar panel array, comprising:a mid clamp portion having a recessed area, the recessed area having a perimeter and a depth;
a deformable toothed washer configured to fit within the perimeter of the recessed area, wherein the deformable toothed washer has projections that extend past the depth of the recessed area when the deformable toothed washer is in a non-deformed state; and
a tightening mechanism configured to clamp the mid clamp portion to at least one solar panel frame;
wherein the deformable toothed washer is configured to deform into the recessed area when the tightening mechanism clamps the mid clamp portion to the at least one solar panel frame wherein the projections of the deformable toothed washer are configured to break an anodized layer of the solar panel frame when the tightening mechanism clamps the mid clamp portion to the solar panel frame.

US Pat. No. 10,992,250

INTEGRATED PHOTOVOLTAIC MODULE MOUNTING SYSTEM FOR USE WITH TUFTED GEOSYNTHETICS

Watershed Solar, LLC, Al...

1. An integrated photovoltaic module mounting system for use in mounting a photovoltaic module to tufted geosynthetics, comprising:at least one elongated base plate;
at least one elongated rail, said elongated rail coupled to and longitudinally aligned with said at least one elongated base plate;
a photovoltaic module;
a plurality of photovoltaic module fasteners coupling the photovoltaic module with said rail, and
an anti-creep strip coupled to a bottom surface of said at least one elongated base plate, said anti-creep strip comprising a plurality of spaced-apart feet extending from the bottom surface for positioning on a portion of a tufted geosynthetics having a plurality of tufts with the plurality of spaced-apart feet in frictional engagement therewith, said tufted geosynthetics for covering a surface,
wherein the photovotanic module generates electricity and the anti-creep strip inter-engaged with tufts of the tufted geosynthetics resists wind uplift.

US Pat. No. 10,992,248

MOTOR DEVICE

1. A motor device comprising:a stator unit;
a rotor unit being rotatable relative to said stator unit;
at least one winding unit including first and second windings that are installed in said stator unit, number of poles of said first winding being less than that of said second winding; and
a transfer switch unit electrically connected to said first and second windings, and being controlled to allocate access to electricity to each of said first and second windings;
wherein said stator unit includes a plurality of first slots and second slots, said first windings being installed in said first slots and said second windings being installed in said second slots; and
wherein depth of said first slots is greater than that of said second slots.

US Pat. No. 10,992,247

METHOD FOR RELIABLE CONTROL OF HIGH ROTOR POLE SWITCHED RELUCTANCE MACHINE

Turntide Technologies Inc...

1. A sensorless reliable control system for a high rotor pole switched reluctance machine (HRSRM) utilizing a hybrid combination of self-inductance and mutual inductance values, the reliable control system comprising:a stator phase energizing module to excite at least one of a plurality of stator phases each having a winding;
a current and time measuring module to measure a first current value through the at least one energized stator phase and time taken by the first current value to reach a pre-determined first peak value of current, wherein each of the windings of the rest of the plurality of stator phases is in an open circuit state;
a self-inductance determining module to determine a self-inductance value for the at least one energized stator phase;
a storage module to store the self-inductance value and the current value for each of the plurality of energized stator phases;
a current and time measuring module to measure a second current value through an adjacent un-energized stator phase and time taken by the adjacent un-energized stator phase to reach a second peak value of current, wherein the winding of the adjacent un-energized stator phase is in a short circuit state;
a mutual-inductance determining module to determine a mutual inductance value between the at least one energized stator phase and the adjacent un-energized stator phase;
a rotor position estimation module to estimate a rotor position utilizing a combination of the stored self-inductance and mutual inductance values; and
a control module to control the HRSRM based on the estimated rotor position.

US Pat. No. 10,992,246

CONTROLLER FOR AC ROTARY MACHINE

Mitsubishi Electric Corpo...

1. A controller for an AC rotary machine provided with a stator that is provided with m sets (m is a natural number of greater than or equal to two) of n-phase windings (n is a natural number of greater than or equal to two) and a rotor that is provided with a permanent magnet, the controller for the AC rotary machine comprising:the m sets of an electric power converter that is provided with the n sets of a series circuit where a positive electrode side switching device connected to positive electrode side of a DC power source and a negative electrode side switching device connected to negative electrode side of the DC power source are connected in series and where a connection node of series connection is connected to the winding of the corresponding phase, corresponding to respective phase of the n-phase;
a switching controller that, about each set of the m sets, performs dq-axis current control that controls currents flowing into the windings on a dq-axis rotating coordinate system consisting of a d-axis defined in a N pole direction of the permanent magnet and a q-axis defined in a direction advanced to the d-axis by 90 degrees in an electrical angle, and performs on/off control of the each switching device;
a failure detector that detects at least one of short circuit failure and open circuit failure of the each switching device; and a driving condition detector that detects a state of the AC rotary machine related to the windings of a set in which the switching device failed,
wherein when failure of the switching device is detected by the failure detector, the switching controller, about the electric power converter of the set in which the switching device failed, stops the on/off control of the switching devices by the dq-axis current control, and turns on, in the case of the short circuit failure, and turns off, in the case of the open circuit failure, at least the respective phase switching devices of the positive electrode side or the negative electrode side which is the same side as the failed switching device; and
about the electric power converter of a set in which the switching devices do not fail, continues the on/off control of the switching devices by the dq-axis current control, and changes a current component of the d-axis according to the state of the AC rotary machine related to the windings of the failed set, detected by the driving condition detector,
when the short circuit failure of the positive electrode side switching device or the open circuit failure of the negative electrode side switching device is detected by the failure detector, the switching controller, about the electric power converter of the set in which the switching device failed, turns on the respective phase switching devices of the positive electrode side and turns off the respective phase switching devices of the negative electrode side,
when the open circuit failure of the switching device of the positive electrode side or the short circuit failure of the switching device of the negative electrode side is detected by the failure detector, the switching controller, about the electric power converter of the set in which the switching device failed, turns off the respective phase switching devices of the positive electrode side and turns on the respective phase switching devices of the negative electrode side,
wherein the driving condition detector calculates a brake torque generated by the windings of the failed set, as the state of the AC rotary machine related to the windings of the failed set,
wherein the switching controller, about the electric power converter of the set in which the switching devices do not fail, increases the current component of the d-axis in a negative direction so as to decrease a magnitude of the brake torque detected by the driving condition detector, and
wherein the switching controller increases the current component of the d-axis of the set which does not fail in the negative direction until the magnitude of the brake torque becomes less than or equal to a preliminarily set maximum torque value.

US Pat. No. 10,992,245

POSITION ESTIMATION OF PERMANENT MAGNET SYNCHRONOUS MACHINES THROUGH VIBRATION INDUCED SALIENCY

Steering Solutions IP Hol...

1. A permanent magnet synchronous machine comprising:a motor control system configured to provide an input command to a motor to cause a position of the motor to change sinusoidally at a predetermined frequency, the input command comprising a base input signal and a sinusoidal modification signal, the sinusoidal modification signal causing the motor to vibrate causing the position of the motor to change sinusoidally at the predetermined frequency; and
a motor position estimation module configured to estimate the position of the motor, the estimation comprising:
measuring a current Iabc across the motor, wherein the current Iabc includes a based current signal and a modification current signal;
extracting a filtered current Iabc_inj at the predetermined frequency from the current Iabc;
determine, using the filtered current Iabc_inj and the input command, an impendence corresponding to a pseudo saliency resulting from the sinusoidal position change of the motor; and
estimating the position of the motor based on the impendence.

US Pat. No. 10,992,244

LOAD DRIVING CIRCUIT

ROHM CO., LTD., Kyoto (J...

9. A control method for a driving circuit comprising a bridge circuit to be coupled to a motor, the control method comprising:switching one or two control input signals for setting a state of the bridge circuit, with an interval that is shorter than a predetermined period, in order to rotationally drive the motor;
controlling the bridge circuit according to the one or two control input signals;
fixedly setting, by a processor, the one or two control input signals for a predetermined period of time in order to switch the driving circuit to a standby mode; and
switching the driving circuit to the standby mode when the driving circuit detects that the one or two control input signals continue in the predetermined state for the predetermined period of time, wherein the predetermined state corresponds to a short brake state of the bridge circuit.

US Pat. No. 10,992,243

SYSTEM AND COMPUTER-IMPLEMENTED METHOD FOR REDUCING ANGLE ERROR IN ELECTRIC MOTORS

Nidec Motor Corporation, ...

1. A system for reducing an angle error in an estimated position of a rotor over a plurality of loads in an electric motor, the system comprising:a processor configured to—
gather data at a plurality of torque levels for at least one speed of the electric motor, including for each torque level, trying a plurality of different inductance values, and determining an inductance value that results in an angle error of zero, and
save the inductance value that results in an angle error of zero for each speed in an electronic memory; and
a motor controller configured to use the inductance value that results in the angle error of zero for each speed of the at least one speed to control operation of the electric motor, such control including synchronizing the rotor and a stator.

US Pat. No. 10,992,242

MOTOR DRIVING CONTROL DEVICE AND CONTROL METHOD OF MOTOR DRIVING CONTROL DEVICE

MINEBEA MITSUMI INC., Na...

1. A motor driving control device comprising:an induced voltage detecting unit configured to detect an induced voltage of a motor;
a controller for generating a PWM signal corresponding to an energization timing of the motor; and
an inverter circuit for outputting a driving signal for driving the motor to the motor based on the PWM signal generated by the controller, wherein the controller comprises:
a position detecting unit comprising at least one Hall sensor, the position detecting unit being configured to detect a position detection signal based on a detection result from the at least one Hall sensor, the position detection signal containing a rising or falling edge representing a timing at which a position of a rotor is a predetermined position;
a counter configured to stop output of the driving signal only for a predetermined period containing a zero-cross point of the induced voltage of the motor and to
measure a pulse width of a regenerated voltage of the motor in the predetermined period containing a detected timing of the rising or falling edge of the position detection signal corresponding to the zero-cross point of the induced voltage of the motor, wherein the regenerated voltage is a voltage generated in a coil of a phase of the motor when the output of the driving signal is stopped;
a calculating unit configured to calculate a zero-cross point of coil current of the motor based on the pulse width of the regenerated voltage measured by the measuring unit; and
an adjusting unit configured to adjust the energization timing of the motor based on a calculation result of the calculating unit,
wherein the adjusting unit adjusts the energization timing of the motor so that the pulse width of the regenerated voltage measured by the measuring unit is larger than zero and shorter than the length of one cycle of the PWM signal,
wherein the adjusting unit adjusts the energization timing of the motor so as to delay the energization timing of the motor when the pulse width of the regenerated voltage measured by the measuring unit is equal to zero, and adjusts the energization timing of the motor so as to advance the energization timing of the motor when the pulse width of the regenerated voltage measured by the measuring unit is equal to the length of one cycle of the PWM signal, and
wherein the Hall sensor is arranged so that the detected timing of the rising or falling edge of the position detection signal can be detected as the zero-cross point of the induced voltage of the motor.

US Pat. No. 10,992,241

CONTROL DEVICE OF MOTOR AND STORAGE MEDIUM

NIDEC TOSOK CORPORATION, ...

1. A control device of a motor to which a drive current is supplied from a power supply by an inverter, the control device comprising:difference calculation circuitry to calculate a difference between a current rotation speed and a target rotation speed of the motor;
coefficient correction circuitry to output a corrected proportion coefficient and an integration coefficient as coefficients to be used in determining a control value of an output voltage of the inverter by multiplying each of an initially set proportion coefficient and integration coefficient by a correction coefficient;
output voltage determination circuitry to calculate at least one of a proportional term in which a difference calculated by the difference calculation circuitry is multiplied by the corrected proportion coefficient and an integral term in which the difference is multiplied by the corrected integration coefficient and the result is integrated, and to determine one of the calculated proportional term and integral term or the sum of the two terms as a control value of the output voltage; and
signal generation circuitry to generate a control signal to be output to the inverter based on the control value of the output voltage determined by the output voltage determination circuitry; wherein
the correction coefficient is a value of a ratio of a reference voltage to a current input voltage of the inverter, and the reference voltage is an input voltage of the inverter used or assumed to determine the initially set proportion coefficient and integration coefficient.

US Pat. No. 10,992,240

POWER CONVERSION DEVICE

Mitsubishi Electric Corpo...

1. A power conversion device for converting a direct-current (DC) voltage from a DC power supply into an alternating-current (AC) voltage, the power conversion device, comprising:a first terminal and a second terminal which are respectively connected to a positive electrode and a negative electrode of the DC power supply;
a third terminal and a fourth terminal which output the AC voltage;
a full-bridge circuit which includes a first leg and a second leg connected in parallel between the first terminal and the second terminal;
a reactor connected between the third terminal and a first connection point connecting an upper arm and a lower arm of the first leg;
a switching-mode changer that generates a signal for switching a mode of operation of the full-bridge circuit to a first switching mode or a second switching mode; and
a PWM controller which causes the full-bridge circuit to operate in the first switching mode or the second switching mode, in accordance with the signal, wherein
the fourth terminal is connected to a second connection point connecting an upper arm and a lower arm of the second leg,
in the first switching mode, the upper arm of the first leg and the lower arm of the second leg are switched synchronously, and the lower arm of the first leg and the upper arm of the second leg are non-conducting,
in the second switching mode, the lower arm of the first leg and the upper arm of the second leg are switched synchronously, and the upper arm of the first leg and the lower arm of the second leg are non-conducting, and
the switching-mode changer adjusts a phase of the signal so that reactive power output from the third terminal and the fourth terminal or a distortion rate of the AC voltage is reduced.

US Pat. No. 10,992,238

MAXIMIZING POWER IN A PHOTOVOLTAIC DISTRIBUTED POWER SYSTEM

Solaredge Technologies Lt...

1. A method comprising:coupling a first input of a power converter to a first output of a first photovoltaic module;
directly connecting the first input of the power converter to an output of the power converter via a direct bypass path;
dividing a current output by the first photovoltaic module into:
a first current that flows from the first input of the power converter to the output of the power converter via the power converter, and
a second current that flows directly from the first input of the power converter to the output of the power converter via the direct bypass path; and
directly connecting a second input of the power converter to a second output of a second photovoltaic module, wherein the first photovoltaic module is connected to the second photovoltaic module.

US Pat. No. 10,992,237

INVERTER COUPLING AND DECOUPLING MANAGEMENT

SunPower Corporation, Sa...

1. A process of managing a grouping of operating inverters comprising:at a processor, determining the manual addition or subtraction of an inverter from a grouping of operating inverters;
sending a query from the processor to inverters in the grouping of inverters, the query seeking snapshot status of inverter variables being monitored outside the inverter;
receiving responses from the query and comparing the responses for each responding inverter to previously identified operational specifications; and
when comparing the responses identifies one or more inverter variable that is out of tolerance to the operational specification for that variable, sending a command to the one or more inverter with at least one out of tolerance inverter variable to correct operation of the one or more inverter.

US Pat. No. 10,992,236

HIGH EFFICIENCY AC DIRECT TO DC EXTRACTION CONVERTER AND METHODS

1. An AC direct to DC extraction conversion system for providing energy directly from an alternating current (AC) power source in a direct current (DC) to an electronic load comprising:a) a voltage divider connected to the power source, and,
b) a first switch, having an input and an output, connected through its input to the voltage divider, and,
c) a second switch, having an input and an output, whose input is connected to the output of the first switch, and,
d) a storage capacitor connected through a diode to the output of the second switch, and,
e) a sense resistor connected between the storage capacitor and the voltage divider thereby providing feedback control, and,
f) a Zener diode connected between the input and output of the second switch thereby clamping the voltage of the output and input of the second switch to the Zener voltage of the Zener diode, and,
g) the electronic load connected to the storage capacitor, and,
h) sense lines from the load passing through an isolator to the voltage divider thereby providing feedback control from the load to the AC direct to DC extraction conversion system.

US Pat. No. 10,992,235

SOFT SWITCHING FULL-BRIDGE PHASE-SHIFTED DC-DC CONVERTER

Robert Bosch GmbH, Stutt...

1. A DC-DC converter (1), comprisinga first input connection (E1);
a second input connection (E2);
a first switching element (S1) which is arranged between the first input connection (E1) and a first node point (K1);
a second switching element (S2) which is arranged between the first input connection (E1) and a second node point (K2);
a third switching element (S3) which is arranged between the first node point (K1) and the second input connection (E2);
a fourth switching element (S4) which is arranged between the second node point (K2) and the second input connection (E2),
freewheeling diodes (D1-D4) arranged in parallel to each of the switching elements (S1-S4);
a transformer (T) with a primary side and a secondary side, wherein a first connection of the primary side is electrically coupled to the first node point (K1) and a second connection of the primary side is electrically coupled to the second node point (K2);
a first inductance (L1) positioned between a first connection of the secondary side of the transformer (T) and a third node point (K3);
a rectifier circuit (10) configured to rectify an electrical voltage which is applied between the third node point (K3) and a second connection of the secondary side of the transformer and to provide a rectified voltage between a first output connection (A1) and a second output connection (A2);
a current sensor configured to detect an electric current through the first switching element (S1) and also through the second switching element (S2); and
a control device (20) configured
to initially, at a first time, close the first switching element (S1) and the fourth switching element (S4) together while the second switching element (S2) and the third switching element (S3) are open;
to, at a second time subsequent to the first time, open the fourth switching element (S4) after a predetermined first time period (t1) while keeping the first switching element (S1) closed and the second switching element (S2) and the third switching element (S3) open;
to, at a third time subsequent to the second time, open the first switching element (S1) once an electric current through the first switching element (S1) or an electric current through the secondary side of the transformer (T) falls below a prespecified threshold value while keeping the second switching element (S2), the third switching element (S3), and the fourth switching element (S4) open;
to subsequently close the second switching element (S2) and the third switching element (S3) after a predetermined second time period (t2) while keeping the first switching element (S1) and the fourth switching element (S4) open;
to subsequently open the third switching element (S3) after the predetermined first time period (t1) while keeping the second switching element (S2) closed and the first switching element (S1) and the fourth switching element (S4) open;
to then open the second switching element (S2) once an electric current through the second switching element (S2) or an electric current through the secondary side of the transformer (T) falls below the prespecified threshold value while keeping the first switching element (S1), the third switching element (S3), and the fourth switching element (S4) open.

US Pat. No. 10,992,233

SUB-RESONANT MODE DUAL CONTROL OF DC-DC CONVERTER WITH SECONDARY-SIDE RESONANT TANK

1. A DC to DC power converter comprising: a transformer; a primary side comprising switching circuitry connected to a primary winding of the transformer; a secondary side connected to a secondary winding of the transformer, the secondary side comprising:inductor-capacitor (LC) circuitry at an input of the secondary side; and
a plurality of diodes providing uncontrolled rectification; and
a controller configured to:
control switching of the switching circuitry to apply voltage pulses to the primary winding of the transformer, wherein the voltage pulses are separated by zero-voltage periods during which a zero or a near-zero voltage is applied to the transformer, wherein a switching frequency of the switching circuitry is less than the resonant frequency of the LC circuitry; and
transition operation between different conduction modes based on (i) the switching frequency and (ii) a voltage difference between a primary reflected voltage and a rectifier output voltage, wherein the different conduction modes comprise:
a first discontinuous conduction mode (DCM) when the voltage difference is substantially zero;
a second DCM when the switching frequency is less than or equal to half of the resonant frequency;
a first, hybrid continuous conduction mode (CCM) when (i) the switching frequency is greater than half the resonant frequency and (ii) the voltage difference is substantially zero; and
a second CCM when (i) the switching frequency is greater than half the resonant frequency and the voltage difference is a positive value.

US Pat. No. 10,992,232

DC-DC CONVERTER SYSTEM WITH CONFIGURABLE PHASE SHIFT SYNCHRONIZATION

TEXAS INSTRUMENTS INCORPO...

1. A system, comprising:a converter, comprising:
a frequency and amplitude detector having a detector input, the frequency and amplitude detector configured to:
receive a first signal at the detector input
generate a second signal based on a frequency of the first signal; and
generate a third signal based on an amplitude of the first signal;
a phase delay unit coupled to the frequency and amplitude detector, the phase delay unit configured to generate a fourth signal based on the second signal and the third signal; and
a regulator having a first output and a second output, the regulator configured to:
generate, at the first output, an output voltage based on an input voltage; and
generate, at the second output, a fifth signal phase locked with the fourth signal.

US Pat. No. 10,992,231

BUCK-BOOST CONVERTER AND CONTROL METHOD

M3 Technology Inc., Taip...

1. An apparatus comprising:a first timer configured to determine a turn-off edge of a gate drive signal applied to a high-side switch of a buck converter portion of a buck-boost converter, wherein the first timer comprises a first input configured to receive a first ramp, and a second input configured to receive a first threshold voltage, and wherein the first ramp is generated by a first current source having a current level proportional to an input voltage of the buck-boost converter, and the first threshold voltage is proportional to an output voltage of the buck-boost converter; and
a second timer configured to determine a turn-off edge of a gate drive signal applied to a low-side switch of a boost converter portion of the buck-boost converter, wherein the second timer comprises a first input configured to receive a second ramp, and a second input configured to receive a second threshold voltage, and wherein the second ramp is generated by a second current source having a current level proportional to the output voltage of the buck-boost converter, and the second threshold voltage is proportional to a difference between the output voltage of the buck-boost converter and the input voltage of the buck-boost converter.

US Pat. No. 10,992,230

MULTI-PHASE SWITCHING MODE POWER SUPPLY WITH ADAPTIVE SYNCHRONOUS DRIVERS

WAVIOUS, LLC, San Diego,...

1. A multi-phase switching mode power supply (SMPS) with adaptive synchronous drivers comprising:a pulse width modulator (PWM) having a feedback input to accept a load voltage and an output to supply n periodic interleaved modulation pulses having a pulse width responsive to the load voltage, where n is a positive integer greater than 1;
n synchronous drivers, each driver having an input to accept a corresponding modulation pulse, an output to supply a driver pulse having a duty cycle responsive to the modulation pulse, and an input to accept a driver gating signal capable of enabling and disabling the driver;
n comparators, each comparator having an input for detecting a polarity of a voltage at a completion of the driver pulse duty cycle, and supplying a comparator signal at an output responsive to the comparison of the detected voltage with a first reference voltage, where the driver pulse duty cycle comprises a high voltage portion and a low voltage portion, and the completion of the driver pulse duty cycle is associated with the low voltage portion;
a load having a first terminal to supply the load voltage and a second terminal connected to a second reference voltage;
n inductors, each inductor connected in series between a corresponding driver output and the load first terminal; and,
a coder having an input to accept the n comparator signals and an output to supply driver gating signals in response to the comparator signals.

US Pat. No. 10,992,229

COMPARATOR WITH PREAMPLIFIER GAIN ADJUSTMENT BASED ON OVERDRIVE VOLTAGE

Texas Instruments Incorpo...

1. An electrical system, comprising:a buck converter having an input and an output;
a battery coupled to the input of the buck converter;
a load coupled to the output of the buck converter, the buck converter including:
a high-side switch;
a low-side switch; and
regulation loop circuitry coupled to the high-side switch and the low-side switch, the regulation loop circuitry including:
a comparator with preamplifier gain adjustment circuitry configured to adjust a preamplifier gain of the comparator based on an overdrive voltage, the preamplifier gain adjustment circuitry is configured to reduce the preamplifier gain as the overdrive voltage increases.

US Pat. No. 10,992,228

SMPS AND CONTROL PROCESS OF A SMPS

STMicroelectronics (Greno...

1. A method of controlling a switched-mode power supply, the method comprising:switching a switching circuit of the switched-mode power supply in a synchronous mode by turning on and off switches of the switching circuit in synchrony with a clock signal, wherein the switching circuit is coupled to an inductive element, and wherein the synchronous mode comprises a charging phase and a discharging phase;
charging the inductive element during the charging phase of the synchronous mode;
discharging the inductive element during the discharging phase of the synchronous mode;
switching the switching circuit in an asynchronous mode by turning on and off the switches of the switching circuit without being synchronized with the clock signal, wherein the asynchronous mode comprises a charging phase and a discharging phase;
charging the inductive element during the charging phase of the asynchronous mode;
discharging the inductive element during the discharging phase of the asynchronous mode;
during the discharging phase of the asynchronous mode, detecting a transient event by detecting a decrease of an output voltage of the switched-mode power supply with respect to a reference voltage; and
in response to the detected transient event, when the output voltage is lower than the reference voltage during a first time, transitioning from the asynchronous mode to the synchronous mode.

US Pat. No. 10,992,227

POWER SUPPLY APPARATUS AND CONTROL METHOD THEREOF

Chicony Power Technology ...

1. A power supply apparatus, comprising:a switch-based power conversion circuit, configured to perform power conversion according to a switching signal group to provide an output voltage and an output current; and
a control circuit, coupled to the power conversion circuit, and configured to detect the output voltage and the output current to generate the switching signal group accordingly, wherein the control circuit generates an error value according to the output voltage and a reference voltage, multiplies the error value by a proportional parameter to obtain a proportional result, multiplies the error value by an integration parameter to obtain a first calculation value, and accumulates the first calculation value over time to obtain an integration result,
wherein when a slope of the output current is greater than a first reference slope and a slope of the output voltage is a negative slope, the control circuit multiplies the slope of the output voltage by a first differential parameter to obtain a second calculation value, the control circuit adds the second calculation value to the integration result over time, and the control circuit adjusts a duty cycle of the switching signal group to stabilize the output voltage according to a sum of the proportional result and the integration result,
wherein
when the output current rises to a first threshold current, the control circuit decreases a numerical value of the proportional parameter and a numerical value of the integration parameter; and
when the output current falls to a second threshold current, the control circuit increases the numerical value of the proportional parameter and the numerical value of the integration parameter,
wherein the first threshold current is greater than the second threshold current.

US Pat. No. 10,992,226

STARTUP DETECTION FOR PARALLEL POWER CONVERTERS

pSemi Corporation, San D...

1. A detection circuit configured to be coupled to a plurality of parallel power converters having direct-connected outputs, including, for at least one power converter:(a) at least one node status detector each coupled to a corresponding node within the at least one power converter and configured to generate a corresponding node flag signal if the voltage and/or current at the corresponding node has a selected node value;
(b) an output status detector coupled to the output of the at least one power converter and configured to generate an output flag signal if a voltage at the output has a selected output value; and
(c) a status validation circuit configured to receive the output flag signal from the output status detector and the corresponding node flag signal from the at least one node status detector, and generate a logic signal if all of the received flag signals have been asserted.

US Pat. No. 10,992,225

CHARGE PUMP CIRCUIT

Sony Semiconductor Soluti...

1. A charge pump circuit comprising:a first transistor including a first terminal, a second terminal connected to an output terminal, and a control terminal;
a second transistor including a first terminal, a second terminal to which a constant current is supplied, and a control terminal connected to the second terminal;
a third transistor including a first terminal connected to the first terminal of the first transistor, a second terminal connected to a voltage source that supplies an arbitrary voltage, and a control terminal;
a fourth transistor group including N transistors arranged in a cascade on a first terminal side of the first transistor, where N is an integer greater than or equal to 1, the N transistors all including control terminals connected to the control terminal of the second transistor;
a fifth transistor group including N transistors arranged in a cascade on a first terminal side of the second transistor, the N transistors all including control terminals connected to the control terminal of the second transistor;
a first switch element that electrically connects the control terminal of the first transistor to the control terminal of the second transistor;
a second switch element that connects the control terminal of the first transistor to a ground node;
a third switch element that electrically connects the control terminal of the third transistor to the control terminals of the fourth transistor group and the fifth transistor group; and
a fourth switch element that connects the control terminal of the third transistor to the ground node, wherein
the first transistor has a channel width and a channel length identical to those of the second transistor,
the third transistor has the channel width and the channel length identical to those of the first transistor and the second transistor,
in the fourth transistor group, each of the transistors has the channel width and the channel length identical to those of the second transistor, and a first terminal of one of the transistors is connected to the ground node, and
in the fifth transistor group, each of the transistors has the channel width and the channel length identical to those of the second transistor, and a first terminal of one of the transistors is connected to the ground node.

US Pat. No. 10,992,224

DISTURBANCE QUELLING

pSemi Corporation, San D...

1. An apparatus comprising a controller that is configured to control operation of a power converter that supplies a constant output voltage at an output thereof, said power converter including a regulator that connects to a charge pump, wherein said charge pump is operable in plural charge-pump modes and said regulator is operable in plural regulator modes, and wherein said controller is configured to receive first information, wherein said first information is indicative of a forthcoming transition between said regulator modes and, wherein said controller is further configured to respond to receiving said first information by taking action prior to said transition.

US Pat. No. 10,992,223

SEMICONDUCTOR DEVICE HAVING POWER SUPPLY VOLTAGE CIRCUIT, CHARGE PUMP, COMPARATOR, AND LOAD CIRCUIT FOR CONTROLLING MEMORY DEVICE

RENESAS ELECTRONICS CORPO...

1. A semiconductor device comprising:a stabilized power supply circuit that generates a first voltage;
a charge pump circuit that generates a second voltage using the first voltage, compares the second voltage with a reference voltage, and outputs a comparison result signal; and
a dummy load circuit that is controlled to be in an on-state or an off-state in response to the comparison result signals,
wherein the stabilized power supply circuit provides at least a portion of a current based on the first voltage to the dummy load circuit in an on-state of the semiconductor device,
wherein the charge pump circuit includes a voltage divider that outputs a voltage dividing level signal in response to changes of the second voltage, and
wherein the charge pump circuit compares the second voltage to a reference voltage via the voltage dividing level signal.

US Pat. No. 10,992,222

DETECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME

Shanghai Awinic Technolog...

1. A detection circuit, comprising:a fourth branch comprising a plurality of fourth switches;
a fifth branch comprising a plurality of fifth switches; and
a third energy storage unit, wherein
a preset electrical signal threshold is sampled and applied to the third energy storage unit by controlling the plurality of fourth switches in the fourth branch, and a voltage difference between two detection terminals of a first energy storage unit is sampled and applied to the third energy storage unit by controlling the plurality of fifth switches in the fifth branch, to compare the voltage difference between the two detection terminals with the preset electrical signal threshold,
wherein the fifth branch comprises two fifth switches, and the third energy storage unit is located on the fifth branch formed by the two fifth switches,
wherein one terminal of one of the two fifth switches is connected to one of the two detection terminals of the first energy storage unit, the other terminal of the fifth switch is connected to one terminal of the third energy storage unit, the other terminal of the third energy storage unit is connected to one terminal of the other of the two fifth switches via a second power transistor, and the other terminal of the other fifth switch is connected to the other of the two detection terminals of the first energy storage unit.

US Pat. No. 10,992,221

EFFICIENT BUCK-BOOST CHARGE PUMP AND METHOD THEREFOR

SEMICONDUCTOR COMPONENTS ...

1. A buck-boost charge pump, comprising:a flying capacitor having a first terminal and a second terminal;
a switch network comprising a first switch, a second switch, a third switch, a fourth switch, a first double switch, and a second double switch, wherein:
said switch network couples an input terminal to said first terminal of said flying capacitor through said first double switch and said second terminal of said flying capacitor to a power supply voltage terminal using said second switch in a charging phase of a boost mode;
said switch network couples said input terminal to said second terminal of said flying capacitor using said third switch and said first terminal of said flying capacitor to an output terminal using said fourth switch in both a discharging phase of said boost mode and a charging phase of a buck mode; and
said switch network couples said power supply voltage terminal to said first terminal of said flying capacitor using said first switch and said second terminal of said flying capacitor to said output terminal through said second double switch in a discharging phase of said buck mode.

US Pat. No. 10,992,220

POWER SUPPLY CIRCUIT FOR FIBER LASER OSCILLATOR USE

FANUC CORPORATION, Yaman...

1. A power supply circuit for fiber laser oscillator use, comprising:a power supply unit physically containing a plurality of power supply circuits that are connected to a plurality of laser cavities of a laser diode module, the laser diode module being configured to provide a plurality of laser lights to a beam combiner that combines the plurality of laser lights into combined laser light and provides the combined laser light to a laser machining head; and
a rectifier circuit unit, separate and distinct from the power supply unit, water cooled, and physically containing rectifier circuitry configured to receive an input voltage having a particular value and provide an output voltage to the power supply unit based on the input voltage, such that the power supply unit is configured to power the laser diode module via the power supply circuits, based on the output voltage received from the rectifier circuit unit, to cause the laser diode module to generate the laser lights.

US Pat. No. 10,992,218

HARMONIC SUPPRESSION DEVICE AND HARMONIC SUPPRESSION SYSTEM

Mitsubishi Electric Corpo...

1. A harmonic suppression system comprising:two or more harmonic suppression devices to generate a harmonic suppression current, which is an electric current for suppressing a harmonic current flowing in a power line, and to exchange a signal between the harmonic suppression devices; and
an operation controller to control the harmonic suppression devices, wherein:
any one harmonic suppression device of the harmonic suppression devices stops operating after transmitting the signal, and any other harmonic suppression device of the harmonic suppression devices, which has stopped operating, starts to operate after receiving the signal,
the harmonic suppression device includes:
a power converter to generate the harmonic suppression current and to output the generated harmonic suppression current to the power line;
a controller
to generate an operation information signal including information on a current flowing between a load and the power line, a power supply voltage, and a power supply phase and information on a cumulative operation time, and
to control the power converter based on an operation instruction signal received from the operation controller; and
a communication unit to transmit the operation information signal to the operation controller and to receive the operation instruction signal, and
the operation controller determines a value of the harmonic suppression current to be generated by the power converter based on the operation information signal and transmits the operation instruction signal indicating the determined value to the harmonic suppression device so that a cumulative operation time of the other harmonic suppression device that starts to operate is shorter than a cumulative operation time of the one harmonic suppression device that stops operating.

US Pat. No. 10,992,217

INSULATED POWER SOURCE AND POWER CONVERSION DEVICE

KYOSAN ELECTRIC MFG. CO.,...

1. An insulated power source comprising:a high-side insulated power source that supplies a driving voltage to a high-side driving circuit that controls a switching operation of a high-side switching element via an insulated transformer;
a low-side insulated power source that supplies a driving voltage to a low-side driving circuit via an insulated transformer that controls a switching operation of a low-side switching element; and
a bias power source connected to a low voltage side of the high-side insulated power source, wherein
the high-side insulated power source includes a common mode reactor between the high-side driving circuit and the high-side insulated power source, wherein
the high-side insulated power source includes a high-side DC power source, a high-side inverter that converts a DC voltage of the high-side DC power source from DC to AC, a high-side insulated transformer that converts an AC output of the high-side inverter to a voltage, and a high-side rectifier that converts an AC output of the high-side insulated transformer to a DC output, which are connected in series,
the high-side driving circuit includes a high-side gate driver that controls an on/off operation of the high-side switching element, a high-side photo-switch that controls the driving of the high-side gate driver, and a high-side bypass capacitor that removes noise input to the high-side photo-switch, which are connected in series,
the low-side insulated power source includes a low-side DC power source, a low-side inverter that converts a DC voltage of the low-side DC power source to an AC voltage, a low-side insulated transformer that converts an AC output of the low-side inverter to a voltage, and a low-side rectifier that converts an AC output of the low-side insulated transformer to a DC output, which are connected in series,
the low-side driving circuit includes a low-side gate driver that controls an on/off operation of the low-side switching element, a low-side photo-switch that controls the driving of the low-side gate driver, and a low-side bypass capacitor that removes noise input to the low-side photo-switch, which are connected in series, and
the common mode reactor is provided in both a high-voltage-side wire and a low-voltage-side wire that connect the high-side insulated power source and a high-side bypass capacitor of the high-side driving circuit.

US Pat. No. 10,992,215

VIBRATION MOTOR

AAC ACOUSTIC TECHNOLOGIES...

1. A vibration motor, comprising a housing, a vibrator accommodated in the housing, a driving apparatus driving the vibrator to vibrate, and an elastic part elastically supporting the vibrator;wherein the housing comprises a top wall, a bottom wall disposed opposite the top wall, and a side wall connecting the top wall and the bottom wall;
wherein the vibrator comprises a counterweight block and a magnet steel disposed in the counterweight block;
wherein the counterweight block comprises an upper surface corresponding to the top wall, a lower surface corresponding to the bottom wall, and an inner wall connecting the upper surface and the lower surface, the inner wall defines a hollow portion penetrating through the counterweight block from the upper surface to the lower surface;
wherein the magnet steel is disposed on the inner wall;
wherein the driving apparatus comprises a first coil disposed on the top wall, a second coil disposed on the bottom wall, and an iron core extending from the first coil to the second coil; and
wherein the iron core comprises a main body portion, a first fixed end extending from the main body portion toward the top wall and fixed on the top wall, and a second fixed end extending from the main body portion toward the bottom wall, the first coil is sleeved over the first fixed end, the second coil is sleeved over the second fixed end, and the main body portion of the iron core is disposed in the hollow portion and disposed opposite and spaced from the magnet steel; along an extension direction of the iron core, the main body portion has a first orthographic projection, the first fixed end has a second orthographic projection falling on the main body portion, the second fixed end has a third orthographic projection falling on the main body portion, and an areas of the second orthographic projection and the third orthographic projection are smaller than those of the first orthographic projection.

US Pat. No. 10,992,214

LINEAR VIBRATION MOTOR

AAC ACOUSTIC TECHNOLOGIES...

1. A linear vibration motor, comprising:a housing having a receiving space;
a vibrator unit received in the housing; and
a stator configured to drive the vibrator unit to vibrate,
wherein the vibrator unit comprises at least two vibrators arranged along a vibrating direction and spaced apart from each other, and
two adjacent vibrators of the at least two vibrators are connected by an elastic holder; the elastic holder comprises a first fixed portion, two second fixed portions respectively located at two sides of the first fixed portion, and two deformation portions connecting the first fixed portion with the second fixed portion; the first fixed portion is fixed to the housing; and the two second fixed portions are respectively fixed to the two adjacent vibrators.

US Pat. No. 10,992,213

MOTOR OF COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Mitsubishi Electric Corpo...

1. A motor of a compressor comprising:a stator core including a plurality of teeth and a plurality of slots formed between the teeth, an aluminum winding wire being wound around the teeth in a concentrated manner;
a rotor core disposed on an inner diameter side of the stator core and including a plurality of magnet insertion holes; and
a plurality of ferrite magnets inserted into the magnet insertion holes, wherein
when a width of a winding wire portion formed in each of the teeth is represented as A, a length in an axis direction of the stator core is represented as L, and the number of the slots is represented as S, the stator core has a shape that satisfies a relation of 0.3 each of the plurality of magnet insertion holes has a curved shape that curves toward a radially inner side.

US Pat. No. 10,992,212

METHOD OF MANUFACTURING A STATOR

GM GLOBAL TECHNOLOGY OPER...

1. A method for manufacturing a stator comprising the steps of:providing a stator core module having a first stator fixture disposed on a first side of a stator core module, the first stator fixture is configured to support a first set of stator core junction portions;
providing a first crown module having a set of first crown junction portions and a first crown fixture to support the first set of first crown junction portions;
aligning the first stator fixture with the first crown fixture so that the first set of stator core junction portions are aligned with the first crown junction portions;
joining the first set of stator core junction portions with the first crown junction portions; and
simultaneously milling the first set of stator core junction portions and the first crown junction portions with a single blade just before joining the first set of stator core junction portions with the first crown junction portions.

US Pat. No. 10,992,211

METHOD FOR PRODUCING ROTORS OR STATORS OF ELECTRIC MACHINES

Schaeffler ELMOTEC STATOM...

1. A method for producing rotors or stators of electric machines, wherein the rotors or stators have radial grooves into which webs of flat windings with parallel webs and winding heads connecting the webs are inserted, the method comprising: inserting windings prefabricated on a former and being initially flat into radial grooves of a rotor or a transposing tool configured for passing on the windings into grooves of a stator, the former being a rotating, strip-shaped, flat former shorter than the windings such that first turns of the windings generated are removed from the former before production of the windings is complete; transposing turns of the windings removed from the former into a linear transfer device configured for transporting the turns to a removal position; and transposing the turns from the removal position into the radial grooves of the rotor or into the radial grooves of the transposing tool for transposition of the winding into the radial grooves of the stator, wherein the former, the transfer device and the rotor or the transposing tool are jointly rotated about an axis of rotation of the former whenever the former is rotated in order to form turns.

US Pat. No. 10,992,210

STATOR, MOTOR, AND STATOR MANUFACTURING METHOD

MITSUBISHI ELECTRIC CORPO...

1. A stator comprising a stator core, the stator further comprising:a cylindrical hollow terminal through which the stator is to be electrically connected; and
a molding material covering the stator core and an outer face of the hollow terminal, wherein
an inner face of the hollow terminal is exposed from the molding material, and a first end of the hollow terminal is open to an outside of the molding material, wherein a second end of the hollow terminal is fixed to a printed circuit board by soldering in a state in which the second end is open.

US Pat. No. 10,992,209

LOCATOR-EQUIPPED CLAMP JIG, STATOR MANUFACTURING DEVICE, AND METHOD FOR MANUFACTURING STATOR

HONDA MOTOR CO., LTD., T...

1. A locator-equipped clamp jig comprising:a pair of clamp bodies, extended in a radial direction of a stator core, for clamping from both sides, in a circumferential direction of the stator core, an end part of an electric conductor, which is inserted in the stator core and welded; and
a pair of locators respectively provided to part of each of the pair of clamp bodies on a stator core side, each of the pair of locators has a plurality of protrusions arranged on an upper surface of a base section of an electric conductor that is adjacent, in the circumferential direction of the stator core, to the electric conductor being clamped by the pair of clamp bodies,
wherein the plurality of protrusions are provided so as to protrude toward the stator core in an axial direction of the stator core, and
wherein a width of each of the plurality of protrusions in the radial direction of the stator core is at least a width of one of the electric conductors.

US Pat. No. 10,992,208

CONVERTER DEVICE FOR AN ELECTRICAL MACHINE, MOTOR VEHICLE, AND METHOD FOR OPERATING A CONVERTER DEVICE

AUDI AG, Ingolstadt (DE)...

1. A converter device for an electrical machine, comprising:switching means with a plurality of switching elements to generate a multiphase alternating current for the electrical machine and a plurality of phase conductors for conducting an alternating current that is generated in each case by the switching means to the electrical machine,
wherein a number of first phase conductors that is one less in number than the total number of phase conductors are coordinated with a current measuring means, and a control device is provided, which is designed to determine a calculated value describing a current along the second phase conductor from first measured values of the current measuring means,
wherein the control device checks the plausibility of the calculated value on the basis of at least one second measured current value of a short circuit detecting device coordinated with a switching element, and on the basis of voltages described by the second measured current values; and
a temperature detecting device configured to detect and/or model at least one temperature at one of the switching element or switching elements, wherein the control device corrects the one or more second measured value(s) based on the temperature and based on the voltages described by the second measured current values.

US Pat. No. 10,992,207

ELECTRIC STATIC DISCHARGE PROTECTION FOR POWER TOOLS

1. A power tool comprising:a housing,
a motor disposed within the housing,
a power supply circuit for providing power to the motor,
a controller circuit for controlling the power provided to the motor, and
an electric static discharge (ESD) protection circuit connected to the power supply circuit and the housing, wherein the ESD protection circuit comprises:
a first resistor connected to the power supply circuit and the housing, the first resistor being a high impedance resistor;
a first capacitor connected in parallel to the first resistor;
a second resistor connected in series to the first resistor; and
a second capacitor connected in series to the first capacitor and in parallel to the second resistor.

US Pat. No. 10,992,206

FIELD DISCHARGE RESISTOR UNIT AND SYNCHRONOUS MOTOR INCLUDING SAME

1. A field discharge resistor unit coupled to a rotary shaft of a synchronous motor and connected to a coil wound on a rotor of the synchronous motor to reduce a magnitude of current flowing through the coil wound on the rotor, the field discharge resistor unit comprising:a hub coupled to the rotary shaft of the synchronous motor such that a rotational movement of the hub is consistent with a rotational movement of the rotary shaft, and including a receiving space in the hub; and
at least one conductor disk received in the receiving space of the hub and functioning as a resistor when a current flows in the conductor disk,
wherein the hub comprises:
a plate-shaped coupling plate portion;
a shaft coupling portion protruding from a central portion of the coupling plate portion and coupled to the rotary shaft;
a side wall portion extending in a protruding direction of the shaft coupling portion along an edge of the coupling plate portion; and
air holes forming air flow channels between an internal space and an external space of the receiving space.

US Pat. No. 10,992,205

ARRANGEMENT FOR COOLING OF AN ELECTRICAL MACHINE

1. An arrangement for cooling of an electrical machine, wherein the electrical machine comprises a rotor rotatably arranged around a rotation axis, a stator including a stator winding arranged radially outside of the rotor, a housing enclosing the rotor and the stator, at least one drain hole configured to drain a cooling fluid from the housing, said arrangement comprising:at least one spraying device configured to spray cooling fluid on the stator winding;
a pump configured to pump cooling fluid to the housing; and
a control unit which is configured, when the electrical machine is in operation, to receive information of a temperature in at least one position of the stator winding and to control the pump such that it provides a flow rate of the cooling fluid to the housing as a function of the temperature of the stator winding and a flow rate creating a cooling fluid level in the housing related to the temperature of the stator winding.

US Pat. No. 10,992,204

ROTARY ELECTRICAL MACHINE WITH OPTIMISED COOLING

Valeo Equipements Electri...

1. A rotary electrical machine comprising:a rotary bearing;
a stator comprising a stator body, wherein the stator is supported within the rotary bearing;
a tubular ring, the stator body being shrink-fitted in the tubular ring;
a cooling chamber for the circulation of cooling liquid delimited by an outer periphery of the tubular ring and an inner periphery of the rotary bearing;
the rotary bearing comprising a cooling liquid intake and outlet,
wherein the rotary electrical machine comprises a separation wall to separate the cooling chamber which extends between the intake and the outlet for the cooling liquid, such that the cooling liquid circulates from the intake to the outlet for the cooling liquid, the separation wall being added-on relative to the tubular ring, and
securing units that retain the separation wall on the tubular ring are formed on a portion of a body of the separation wall at the ends of the separation wall.

US Pat. No. 10,992,203

AXIAL GAP TYPE ROTARY ELECTRIC MACHINE

Hitachi Industrial Equipm...

1. An axial gap type rotary electric machine comprising a stator configured by annularly disposing a plurality of core units about an axis of rotation, each core unit at least including a core, a winding disposed around an outer periphery of the core, and a crossover wire drawn out from the winding, at least a rotor configured to face an axial end face of the core via a gap, and a rotating shaft configured to rotate with the rotor, the axial gap type rotary electric machine comprising:a plurality of wiring support portions provided on an axial end face side and an outer diameter side of the stator, each wiring support portion including a base having an arc shape and extending in a rotating direction along an annular shape on the outer diameter side of the stator;
in the base having a length extending over the end face on the outer diameter side of adjacent two or more of the core units and a predetermined width in an axial direction, a plurality of grooves provided in the axial direction and configured to guide the crossover wire in a rotating direction on a surface of the base opposite to the rotating shaft in a radial direction; and
a molding resin for integrally molding the wiring support portions and the stator.

US Pat. No. 10,992,202

SLOTLESS ELECTRIC MOTOR AND COIL UNIT THEREOF

INDUSTRY-UNIVERSITY COOPE...

4. A coil unit of a slotless electric motor having a three-phase structure, comprising:a first coil comprising two coil-sides, a first end turn arranged at one end portion of the two coil-sides of the first coil and bent with respect to the two coil sides of the first coil, and a second end turn arranged at another end portion of the two coil-sides of the first coil and coplanar with the two coil-sides of the first coil;
a second coil comprising two coil-sides, a first end turn arranged at one end portion of the two coil-sides of the second coil and bent with respect to the two coil sides of the second coil, and a second end turn arranged at another end portion of the two coil-sides of the second coil and coplanar with the two coil-sides of the second coil; and
a third coil comprising two coil-sides, a first end turn arranged at one end portion of the two coil-sides of the third coil and bent with respect to the two coil sides of the third coil, and a second end turn arranged at another end portion of the two coil-sides of the third coil, and coplanar with the two coil-sides of the third coil;
wherein the first coil, the second coil, and the third coil overlap such that the first end turn of the first coil and first end turns of the second coil and the third coil are positioned at opposite end portions of the two coil-sides, and one of the two coil-sides of the second coil and one of the two coil-sides of the third coil is inserted between the two coil-sides of the first coil,
wherein the first end turns and the second end turns of the first, second, and third coils have curved shapes, and
wherein each first end turn of the first, second and third coils includes an inclined portion that connects each of the two coil-sides to an end portion of the first end turn such that the end portion of the first end turn is bent at a right angle with respect to the two coil-sides.

US Pat. No. 10,992,201

ELECTRICAL PROPULSION SYSTEM WITH CORONA SUPPRESSION ON A VEHICLE

General Electric Company,...

1. An electrical machine of a vehicle electrical propulsion system, the electrical machine comprising:a housing;
a stator within the housing, the stator having an annular shape that defines a central bore elongated along a longitudinal axis of the stator, the stator defining slots circumferentially disposed around the central bore;
a rotor held within the central bore of the stator, the rotor coupled to a shaft that extends along the longitudinal axis of the stator, the rotor configured to rotate relative to the stator around the longitudinal axis; and
a stator winding extending through the slots of the stator within the housing, the stator winding including a core conductor, an insulation layer surrounding the core conductor, and a conductive shield layer surrounding the insulation layer, the stator winding including an in-slot portion within the slots of the stator and an end-winding portion outside of the slots,
wherein the conductive shield layer is electrically conductive and surrounds the insulation layer of the stator winding along both the in-slot portion and the end-winding portion of the stator winding, wherein the conductive shield layer has a greater electrical conductivity along the end-winding portion than along the in-slot portion.

US Pat. No. 10,992,200

ELECTRIC MOTOR WITH A CLAMPING ELEMENT

Robert Bosch GmbH, Stutt...

1. An electric motor, comprising:an armature having a plurality of teeth and slots between the teeth,
a first winding constituted by a first winding conductor wound around a first tooth of the plurality of teeth,
a second winding constituted by a second winding conductor wound around a second tooth of the plurality of teeth,
the first tooth being adjacent to the second tooth and one of the slots being between the first tooth and the second tooth,
a first guide means adjacent the first tooth and having a first spacer and a first guide means slot, and
a second guide means adjacent the second tooth and having a second spacer and a second guide means slot,
wherein the first and the second guide means are positioned in the one of the slots such that a protruding portion of the first spacer faces a protruding portion of the second spacer and the first and the second guide means slots open toward each other,
wherein a first winding conductor section of the first winding conductor is positioned within the first guide means slot,
wherein a second winding conductor section of the second winding conductor is positioned within the second guide means slot,
wherein the first spacer separates the first winding conductor section from the remainder of the first winding, and
wherein the second spacer separates the second winding conductor section from the remainder of the second winding,
the electric motor further comprising a clamping element having a base element and base clamp, the base clamp extending from the base element to a free end,
wherein the base clamp comprises a first partial element and a second partial element, the first partial element having a taper in a direction from the base element to the free end,
wherein the first partial element extends into the first and the second guide means slots such that the taper presses the first and the second winding conductor sections into the first and the second guide means slots, respectively, to retain the first and the second winding conductor sections within the first and the second guide means slots, and
wherein the second partial element extends between the protruding portion of the first spacer and the protruding portion of the second spacer.

US Pat. No. 10,992,199

HYDROELECTRICAL MACHINE COIL INSULATION METHOD

Integrated Power Services...

1. A method for insulating a hydroelectric machine formed coil, comprising:wrapping a turn insulation tape over each successive turn of the formed coil;
wrapping a multi-layer of mica ground wall insulation tape over multiple turns of the coil;
wrapping a slot corona suppression insulation tape over the ground wall insulation tape of slot cell sections of the coil and extending beyond ends of a core of the machine;
wrapping a voltage grading insulation over at least a portion of the slot corona suppression insulation and extending beyond the slot corona suppression insulation at ends of the coil;
wrapping an armor insulation disposed over ends of the coil and at least a portion of coil leads; and
forming a section of the formed coil by applying a first pressing force and a first temperature based on a time temperature profile, wherein the time temperature profile comprises a lubricity window of time comprising a maximum lubricity where the turn insulation tape fluidly moves approximately equally to the multi-layer mica ground wall insulation tape.

US Pat. No. 10,992,198

MOTOR

PANASONIC INTELLECTUAL PR...

1. A motor comprising:a stator including a stator core and teeth respectively protruding from the stator core; and
coils respectively wound onto the teeth n (n is an integer of 5 or greater) turns,
wherein
in a cross section in a first direction representing each of directions of protrusion of the teeth from the stator core, a k-th (k is an integer, 1 the k-th turn of each of the coils is greater in cross-sectional area than each of a first turn and an n-th turn,
the k-th turn of each of the coils is largest in cross-sectional area among the first to the n-th turns, and
each of the coils gradually reduces in cross-sectional area from the k-th turn to the first turn, and each of the coils gradually reduces in cross-sectional area from the k-th turn to the n-th turn.

US Pat. No. 10,992,197

STATOR FOR ELECTRIC ROTATING MACHINE

DENSO CORPORATION, Kariy...

1. A stator for an electric rotating machine, comprising;a stator core having a plurality of slots arranged in a circumferential direction thereof, and a stator winding that is wound in the slots, the stator winding including a plurality of covered conductor linear portions that are linear shaped conductors which are covered by an insulation cover,
the covered conductor linear portions having exposed portions that are formed on end portions of the covered conductor linear portions and are exposed from the conductors, and
the plurality of the conductor linear portions are joined to each other by joining, at an exposed portion thereof, one conductor to a second conductor to form a conductor-joining portion, each conductor-joining portion being covered by an insulator, in at least a range that includes an end portion of the insulation cover,
wherein the insulation cover is configured to cover the conductor in an adhered state to the conductor, and has a low-adhesion portion that is either adhesive-free or has lower adhesive-strength than other parts of the insulation cover, to the conductor, the low-adhesion portion being arranged in a position that is distanced from the end on a side of exposed portion.

US Pat. No. 10,992,196

STATOR FOR AN ELECTRICAL MACHINE HAVING AN INTERCONNECTION DEVICE FOR STATOR COILS, AND ELECTRICAL MACHINE HAVING SUCH A STATOR

ZF Friedrichshafen AG, F...

1. A stator of an electric machine comprising:a quantity of stator coils with coil ends;
winding bodies;
an annular stator lamination stack at which the quantity of stator coils is arranged by the winding bodies; and
an interconnection device for the stator coils arranged at the stator lamination stack on a front side, wherein the interconnection device is fixed to the winding bodies of the stator coils by a carrier element of the interconnection device, the interconnection device comprises:
the carrier element having a first radial extension;
a plurality of separate disk-shaped insulating layers having a second radial extension that is less than the first radial extension; and
a plurality of coaxially arranged connection conductors that are electrically insulated from one another by the plurality of insulating layers and are carried by the carrier element,
wherein the plurality of coaxially arranged connection conductors have coil connection areas for the coil ends and power connection area for a power supply of the electric machine,
wherein the carrier element is formed by one of the plurality of coaxially arranged connection conductors and/or by one of the plurality of separate disk-shaped insulating layers, and
wherein a remainder of the plurality of coaxially arranged connection conductors and/or a remainder of the plurality of insulating layers are fixed to the carrier element,
wherein the connection conductors and the insulating layers are annular disk shaped and are arranged so as to be axially staggered at the stator, and
wherein the winding body has a winding area formed by a winding carrier and by two legs that limit the winding area in axial direction and are connected to the winding carrier, wherein the connection conductors are arranged axially with respect to the winding area or radially with respect to the winding area.

US Pat. No. 10,992,195

SYSTEM FOR COOLING AN ELECTRIC MACHINE

AUDI AG, Ingolstadt (DE)...

1. A system for cooling an electric machine, comprising;two components, one of the two components being a rotor and the other a stator, the two components enclosing a central axis of the electric machine coaxially, wherein during operation of the electric machine, the rotor rotates relative to the stator, wherein at least one axially oriented channel passes through at least one component, wherein a fan is arranged at a first end of the at least one channel, wherein a turbine is integrated on an end plate at a second end of the at least one channel, wherein the fan directs air to flow in a single axial direction from the first end through the at least one axially oriented channel to the second end to initiate a rotation of the turbine, wherein the turbine converts kinetic energy of the flowing air into rotation energy of the rotor and the flowing air exits the turbine in the axial direction substantially parallel to the central axis.

US Pat. No. 10,992,194

ROTOR OF AN INNER-ROTOR MOTOR WITH RELIABLE ENGAGEMENT BETWEEN THE SHAFT AND THE PERMANENT MAGNETS

Sunonwealth Electric Mach...

1. A rotor of an inner-rotor motor comprising:a shaft including a connecting portion;
a permanent magnet encircling the connecting portion of the shaft without being intervened in a circumferential direction of the permanent magnet, wherein the permanent magnet includes at least one first engaging portion; and
at least one coupling member including a through-hole, wherein the shaft extends through the through-hole, wherein the at least one coupling member includes a second engaging portion engaged with the at least one first engaging portion of the permanent magnet, and wherein a cross section of the connecting portion of the shaft is convex polygonal and perpendicular to a rotating axis of the shaft.

US Pat. No. 10,992,193

LINEAR MOTOR WITH ARMATURE COOLING CHANNELS

MTS SYSTEMS CORPORATION, ...

1. An electric linear motor comprising:a support structure;
a stator assembly secured to the support structure; and
an armature assembly secured to the support structure for guided movement relative to the stator assembly, the armature assembly including:
a first plurality of magnetic devices;
a second plurality of magnetic devices; and
a core support having a first end and a second end, a first major surface extending from the first end to the second end in a longitudinal direction and a second major surface extending from the first end to the second end in the longitudinal direction and facing in a direction opposite the first major surface, the core support supporting the first plurality of magnetic devices in spaced apart relation in the longitudinal direction on the first major surface and supporting the second plurality of magnetic devices in spaced apart relation in the longitudinal direction on the second major surface, the core support having a plurality of fluid cooling passageways formed in the material of the core support between the first major surface and the second major surface, the plurality of fluid cooling passageways extending through the core support in a direction intersecting with the longitudinal direction.

US Pat. No. 10,992,192

STATOR CORE OR A ROTOR CORE FOR AN ELECTRICAL MACHINE WITH REDUCED EDDY CURRENT LOSSES AND HIGH MAGNETIC CONDUCTIVITY AND MECHANICAL STRENGTH

ABB Schweiz AG, Baden (C...

1. A stator core or a rotor core for an electrical machine, the core comprising:a plurality of teeth separated by slots in a circumferential direction of the core,
a plurality of lamination stacks arranged one after another in an axial direction of the core, and separated from each other in the axial direction by cooling ducts, each lamination stack including a plurality of laminations arranged one after another in the axial direction such that each pair of neighboring laminations is in contact with each other, each lamination stack including among the plurality of laminations a plurality of regular laminations, each regular lamination including a plurality of regular lamination teeth separated by lamination slots in the circumferential direction to form respective regular tooth sections and slot sections when at least two regular laminations are arranged next to each other, each lamination stack further including among the plurality of laminations a plurality of slit laminations, each slit lamination including a plurality of slit lamination teeth separated by lamination slots in the circumferential direction to form respective slit tooth sections and slot sections when at least two slit laminations are arranged next to each other, each slit lamination tooth including at least one slit providing a discontinuity in the electrical conductivity of the lamination material, the at least one slit being configured to reduce eddy current losses at the respective slit lamination,
wherein each lamination stack includes at its each end in the axial direction at least one slit tooth section, and between the slit tooth sections at least one regular tooth section.

US Pat. No. 10,992,191

ROTATING ELECTRICAL MACHINE

Mitsubishi Electric Corpo...

1. A rotating electrical machine comprising:a housing;
a stator fixed in the housing; and
a rotor disposed inside and opposite the stator,
wherein the stator includes a stator core having radially divided cores arranged in a ring, each divided core being a laminate of magnetic steel sheets, and stator windings placed in slots each formed by two adjacent ones of the divided cores of the stator core, and
wherein each divided core has at least one swaged portion in which the laminated magnetic steel sheets are bonded by swaging, the at least one swaged portion being disposed in a core back portion that is in contact with core back portions of divided cores located on both sides of the divided core, wherein the at least one swaged portion is positioned a distance from an outer periphery of the core back portion is that is less than ? of a radial length of the core back portion,
wherein the at least one swaged portion includes two swaged portions, wherein each divided core has a fastened portion formed by welding of the laminated magnetic steel sheets, in a circumferentially middle, radially outermost portion of the core back portion, and wherein the fastened portion and the two swaged portions are disposed in a triangle.

US Pat. No. 10,992,190

SELF-EXCITING SYNCHRONOUS RELUCTANCE GENERATORS

Hamilton Sundstrand Corpo...

20. A method of self-exciting a synchronous reluctance generator, comprising:magnetizing a rotor with magnetic flux communicated by a permanent magnet;
rotating the rotor relative to a stator having a direct current (DC) coil and alternating current (AC) coils;
regulating DC current to the DC coil;
inducing an AC flow in the AC coil;
rectifying the AC flow into a DC flow;
applying the DC flow to the DC coil; and
further magnetizing the rotor with magnetic flux communicated from the DC coil.

US Pat. No. 10,992,189

METHOD FOR WIRELESS CHARGING, TRANSMITTER, RECEIVER AND POWER MANAGEMENT APPARATUS

Beijing Xiaomi Mobile Sof...

1. A method for wireless charging, the method being applied to a wireless charging transmitter, comprising:when detecting that a connection is established between the wireless charging transmitter and a charger, acquiring, by the wireless charging transmitter, voltage and current capability information of the charger;
when receiving fast wireless charge identification information from a wireless charging receiver, determining acknowledgment information corresponding to the fast wireless charge identification information according to the voltage and current capability information of the charger;
sending, by the wireless charging transmitter, the acknowledgment information to the wireless charging receiver; and
when receiving a charging request including desired voltage information and desired current information from the wireless charging receiver, requesting the charger to output a voltage and a current respectively corresponding to the desired voltage information and the desired current information.

US Pat. No. 10,992,188

WIRELESS POWER TRANSMITTER

ROHM CO., LTD., Kyoto (J...

1. A wireless power transmitter structured to transmit a power signal to a wireless power receiver, comprising:a transmission antenna including a resonant capacitor and a transmitter coil coupled in series;
a diver including a bridge circuit structured to apply a driving voltage to the transmission antenna;
a current sensor structured to detect a current flowing through the bridge circuit; and
a foreign object detector structured to detect the current flowing through the bridge circuit while changing switching frequency of the bridge circuit and determine whether a foreign object is present or absent based on a difference between two frequencies fH and fL giving current lower than a peak by a predetermined ratio, wherein
the foreign object detector is structured to
(i) acquire frequency f0 at which the current peaks and a current value IMAX at that time while sweeping up the switching frequency of the bridge circuit from a frequency lower than a resonance frequency of the transmission antenna as a starting point,
(ii) calculate current ILOW by multiplying the current value IMAX by a predetermined ratio,
(iii) acquire frequency fH when the detected current reaches the current ILOW while further sweeping up the switching frequency, and
(iv) acquire the frequency fL at which the detected current reaches the current ILOW while sweeping down the switching frequency.

US Pat. No. 10,992,187

SYSTEM AND METHODS OF USING ELECTROMAGNETIC WAVES TO WIRELESSLY DELIVER POWER TO ELECTRONIC DEVICES

Energous Corporation, Sa...

1. A method of selectively charging one or more electronic devices in a wireless power network, the method comprising:at a controlling electronic device that includes a display:
receiving data comprising a charge status for each of a plurality of receiver devices;
displaying, in a first region of the display, representations of one or more receiver devices of the plurality of receiver devices, each of the one or more receiver devices represented in the first region of the display is currently not receiving electromagnetic (EM) power transmission waves;
displaying, in a second region of the display that is distinct from the first region of the display, representations of one or more additional receiver devices of the plurality of receiver devices, wherein each of the one or more additional receiver devices represented in the second region of the display is currently receiving EM power transmission waves from one or more wireless power transmitters included in a wireless power network;
detecting a user selection from the first region of the display of one of the representations of the one or more receiver devices corresponding to a receiver device selected to be charged; and
in response to detecting the user selection, sending a command to a wireless power transmitter to transmit EM power transmission waves to a location of the receiver device selected to be charged, wherein the receiver device selected to be charged uses energy from at least some of the EM power transmission waves to power or charge the receiver device.

US Pat. No. 10,992,186

WIRELESS POWER TRANSMISSION DEVICE AND METHOD

LG ELECTRONICS INC., Seo...

1. A wireless power transmission apparatus, comprising:a laser light source unit;
a light output unit configured to emit laser light generated by the laser light source unit to a light receiving unit of a wireless power reception apparatus; and
a control unit configured to:
control shaping of the emitted light based on an angle of arrival at the light receiving unit such that overfill loss becomes smaller than a predetermined threshold,
extract a value of Prep from data received from the wireless power reception apparatus;
determine whether the extracted value of Prep is smaller than a value obtained by subtracting ?P from Prep? (Prep control the shaping for at least one axis of a cross-sectional area of the emitted light based on the determination result,
wherein Prep indicates a value of received power (Pout) reported by the wireless power reception apparatus to the wireless power transmission apparatus, Prep? indicates an initial value of Prep, and ?P indicates a minimum variation of the received power at which the shaping is required.

US Pat. No. 10,992,185

SYSTEMS AND METHODS OF USING ELECTROMAGNETIC WAVES TO WIRELESSLY DELIVER POWER TO GAME CONTROLLERS

Energous Corporation, Sa...

1. A method of wirelessly charging a game controller, the method comprising:sending, by a wireless communications radio of a receiver, a wireless communication signal to a transmitter, the receiver being embedded in a radio frequency (RF) transparent housing that is adapted to electrically connect the game controller with the receiver, wherein:
(i) the receiver is separated from the transmitter by a non-zero distance,
(ii) the RF transparent housing supports the game controller; and
(iii) the wireless communication signal includes information that allows the transmitter to determine a location of the receiver;
after sending the wireless communication signal:
receiving, by an antenna of the receiver, RF signals from the transmitter, wherein: (i) the transmitter determines parameters of the RF signals based, at least in part, on the wireless communication signal, and (ii) at least one RF signal from the RF signals constructively interferences with at least one other RF signal from the RF signals at the receiver's location; and
converting, by a rectifier of the receiver, the received RF signals into electricity to charge a power source that is used to provide power to the game controller.

US Pat. No. 10,992,183

HIGH-FREQUENCY POWER SUPPLY DEVICE

Murata Manufacturing Co.,...

1. A high-frequency power supply device comprising:a power transmission coil that is magnetically coupled to a power receiving coil in a power receiving circuit;
a high-frequency power circuit configured to convert direct-current power input from a direct-current power supply into high-frequency power and supply the high-frequency power to the power transmission coil;
a detection circuit configured to detect a voltage based on a circuit operation of the high-frequency power circuit and output a detected voltage;
a control circuit configured to control a circuit operation of the high-frequency power circuit, the control circuit including a processor into which information is input from an external device, and the controller being configured to determine a command value on the basis of the information, such that the controller determines the command value based on a value with which the high-frequency power circuit is protected;
a D/A converter configured to perform D/A conversion upon receiving the command value output from the control circuit and output a command voltage; and
a comparator comprising an analog electronic circuit and configured to compare the command voltage and the detected voltage with each other and output a stop signal, used to stop a circuit operation of the high-frequency power circuit, to the high-frequency power circuit.

US Pat. No. 10,992,182

ELECTROMAGNETIC ENERGY-FLUX REACTOR

1. A system to provide power to a load, the system comprising:a first set of coils configured to provide power to a load, the first set of coils comprising:
a first coil configured to receive an input power source and generate a first magnetic field;
a second coil configured to generate a second magnetic field, the second magnetic field varying an intensity of the first magnetic field with time; and
a third coil configured to generate a third magnetic field, the third magnetic field in opposition to the first magnetic field; and
a second set of coils configured to vary the power of the first set of coils by tuning the first set of coils to the load, the second set of coils comprising:
a fourth coil shunted to the load and the second coil, the fourth coil tuning the first set of coils by coupling the load to the second coil to reduce harmonic distortion of the first magnetic field; and
a fifth coil magnetically coupled to the fourth coil and shunted to the third coil, the fifth coil configured to vary an intensity of the third magnetic field.

US Pat. No. 10,992,181

POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, CONTROL APPARATUS, AND WIRELESS POWER TRANSFER SYSTEM

KABUSHIKI KAISHA TOSHIBA,...

1. A power transmitting apparatus for transmitting power to a power receiving apparatus, the power transmitting apparatus comprising:a power supply configured to generate AC power;
a power transmitting inductor coupled to the power supply and configured to transmit the AC power generated by the power supply to the power receiving apparatus through magnetic coupling with a power receiving inductor to be coupled to a load in the power receiving apparatus;
a sensor configured to detect, based on a change in temperature or in weight, foreign matter contacting with one of the power transmitting inductor and the power receiving inductor;
a movable member movable in a longitudinal or a lateral direction of the one of the power transmitting inductor and the power receiving inductor;
a mechanism coupled with the movable member and at least one of the power transmitting inductor and the power receiving inductor and configured to change at least one of an angle and a position between the power transmitting inductor and the power receiving inductor; and
control circuitry configured to control the mechanism based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor to change an angle or a position of at least one of the power transmitting inductor and the power receiving inductor to thereby change the angle or the position between the power transmitting inductor and the power receiving inductor, and configured to set the mutual coupling coefficient within a range,
wherein an upper limit of the range is a value less than a maximum of the mutual coupling coefficient between the power transmitting inductor and the power receiving inductor, and
wherein when the foreign matter is detected by the sensor, the control circuitry is configured to control the mechanism to move the movable member to remove the foreign matter.

US Pat. No. 10,992,179

WIRELESS CHARGING SYSTEM WITH MULTI-COIL SCANNING AND LEARNING

NIKE, Inc., Beaverton, O...

1. A system, comprising:a recharge apparatus, comprising a plurality of transmit coils positioned in a pattern to allow at least one of the plurality of transmit coils to establish a wireless link with a receive coil positioned in proximity of the recharge apparatus;
a power source coupled to the plurality of transmit coils and configured to selectively energize ones of the plurality of transmit coils to transfer power to the receive coil;
an energy efficiency detection circuit coupled to the plurality of transmit coils and configured to detect an electrical response of each one of the plurality of transmit coils when energized by the power source, the electrical response indicative of an energy efficiency between the one of the plurality of transmit coils and the receive coil;
an electronic data storage, coupled to the energy detection circuit, configured to store data indicative of the energy efficiency to generate a historical record of energizing the plurality of transmit coils; and
a controller, coupled to the electronic data storage and the power source, configured to iteratively update the historical record based on the electrical response and to cause the power source to selectively energize ones of the plurality of transmit coils, wherein the at least one transmit coil is selected according to:
a statistical analysis of the historical record; and
the electrical response indicative of the energy efficiency meeting a minimum efficiency criterion for energy transfer to the receive coil, wherein if the selected at least one coil fails to satisfy the measured electrical response a next transmit coil of the plurality of transmit coils is selected.

US Pat. No. 10,992,178

POWER AND SIGNAL TRANSMISSION DEVICE FOR SPINDLE OF MACHINE TOOL

INDUSTRIAL TECHNOLOGY RES...

1. A power and signal transmission device for a spindle of a machine tool, comprising:a spindle fixing portion provided with a power input end, a primary side power induction coil, a secondary side signal induction coil and at least one signal output end;
a shaft rotating portion provided with a joining end surface for bonding to a holder, a secondary side power induction coil and a primary side signal induction coil, wherein the shaft rotating portion is rotatable with respect to the spindle fixing portion;
a power transmission component disposed on the joining end surface of the shaft rotating portion and coupled to the secondary side power induction coil for transmitting an electrical energy from the power input end; and
at least one signal transmission component disposed on the joining end surface of the shaft rotating portion and coupled to the primary side signal induction coil for transmitting a holder signal to the signal output end, wherein each of the power transmission component and the at least one signal transmission component individually comprises at least one elastic pogo pin,
wherein a force applied to the elastic pogo pin is parallel to an axial direction of the shaft rotating portion, and the elastic pogo pins electrically contact a metal sheet of the holder in the axial direction.

US Pat. No. 10,992,175

COMMUNICATION CIRCUIT FOR 2-WIRE PROTOCOLS BETWEEN HVAC SYSTEMS AND SMART-HOME DEVICES

Google LLC, Mountain Vie...

11. A method for stealing power from an external system without interfering with a communication protocol, the method comprising:receiving a plurality of current levels set by the external system according to the communication protocol, wherein the plurality of current levels are received through a plurality of wiring connectors configured to receive a plurality of wires;
regulating a voltage on the plurality of wiring connectors at a plurality of voltage levels according to the communication protocol using a first voltage regulator to encode a first multi-bit binary message to be sent to the external system in the plurality of voltage levels;
measuring the plurality of current levels received through the plurality of wiring connectors using a current monitor to decode the plurality of current levels to determine a second multi-bit binary message sent from the external system;
providing a current-limiting output from a second voltage regulator; and
optimizing an amount of power stolen from the plurality of wiring connectors by a power converter based on the current-limiting output.

US Pat. No. 10,992,173

OPTIMIZED GATE DRIVER FOR LOW VOLTAGE POWER LOSS PROTECTION SYSTEM

Active-Semi, Inc., Torto...

1. An integrated circuit comprising:a first terminal coupled to receive a first voltage generated from an alternating current (AC) power source;
a second terminal coupled to receive a second voltage generated from a storage device comprising a bank of capacitors;
a third terminal coupled to a load;
a fourth terminal capacitively coupled to a lead of an inductor; and
a gate drive circuit, wherein the gate drive circuit is configured to:
drive a pair of switching transistors configured to switch current through the inductor;
draw current primarily from the storage device when the pair of switching transistors are being driven; and
draw current primarily from the AC power source when the pair of switching transistors are not being driven.

US Pat. No. 10,992,172

POWER SUPPLY CIRCUIT

VOLTRONIC POWER TECHNOLOG...

1. A power supply circuit, which is used in an uninterruptible power supply system for single-phase, two-phase or three-phase circuits, the power supply circuit comprises: a utility power source; a first silicon controlled rectifier (SCR), a first end of the first SCR being coupled to the utility power source; a third SCR, a second end of the third SCR being coupled to a second end of the first SCR; a fifth SCR, a first end of the fifth SCR being coupled to a second end of the third SCR, a second end of the fifth SCR being coupled to the first end of the third SCR; a first battery, a first end of the first battery being coupled to a first end of the third SCR; a first inductor, a first end of the first inductor being coupled to the first end of the fifth SCR; a first power switch element, a first end of the first power switch element being coupled to a second end of the first inductor, and a second end of the first power switch element being coupled to a second end of the first battery; a third power switch element, a second end of the third power switch element being coupled to the second end of the first inductor; a first capacitor, a first end of the first capacitor being coupled to a first end of the third power switch element, a second end of the first capacitor being coupled to the second end of the first battery; a second SCR, a second end of the second SCR being coupled to the utility power source; a fourth SCR, a first end of the fourth SCR being coupled to a first end of the second SCR; a sixth SCR, a first end of the sixth SCR being coupled to a second end of the fourth SCR, a second end of the sixth SCR being coupled to the first end of the fourth SCR; a second battery, a first end of the second battery being coupled to the second end of the first battery, a second end of the second battery being coupled to the second end of the fourth SCR; a second power switch element, a first end of the second power switch element being coupled to the first end of the second battery; a second capacitor, a first end of the second capacitor being coupled to the first end of the second battery; a fourth power switch element, a first end of the fourth power switch element being coupled to a second end of the second power switch element, and a second end of the fourth power switch element being coupled to a second end of the second capacitor; and a second inductor, a first end of the second inductor being coupled to the second end of the sixth SCR, and a second end of the second inductor being coupled to the second end of the second power switch element, wherein when an input of the utility power source is in a positive half cycle, the first SCR is turned on, the third SCR and the fifth SCR are turned off, the first power switch element is turned on, an electrical energy is transmitted to the first capacitor through a diode of the third power switch element to maintain a voltage of the first capacitor at a constant value; meanwhile, the second SCR and the fourth SCR are turned off, the sixth SCR is turned on, the second power switch element is turned off, and the fourth power switch element is turned on.

US Pat. No. 10,992,171

UNINTERRUPTIBLE POWER SUPPLY WITH WIRELESSLY CONFIGURABLE OPERATIONAL PARAMETERS

SCHNEIDER ELECTRIC IT COR...

1. An Uninterruptible Power Supply (UPS) system, comprising:a processor;
an input coupled to an AC power source to receive input AC power;
a converter circuit coupled to the input and configured to convert an input AC voltage to a DC voltage;
an energy-storage component;
a load output configured to provide output power derived from the DC voltage;
a radio-frequency circuit configured to receive a radio-frequency signal, the radio-frequency circuit comprising an antenna; and
a memory storing instructions that, when executed by the processor, cause the processor to:
receive configuration data from a component of the radio-frequency circuit, the configuration data comprising a first UPS identifier,
compare the first UPS identifier to a second UPS identifier, the second UPS identifier stored on a memory of the UPS system, and
configure operation of the UPS system based on the configuration data.

US Pat. No. 10,992,170

POWER SUPPLY APPARATUS AND POWER SUPPLYING METHOD THEREOF

Wiwynn Corporation, New ...

1. A power supply apparatus comprising:a power switch receiving a first power and a second power respectively through a first switch and a second switch; and
a supplied power generator coupled to the power switch, receiving and performing a voltage converting operation to the first power or the second power to generate a supplied power,
wherein, the first switch is turned on and the second switch is cut off and the supplied power generator performs the voltage converting operation to the first power,
when the supplied power generator judges the first power as being cut off, during a first period, the first switch is cut off and the supplied power generator stops the voltage converting operation; during a second time period, the second switch is turned on and after the second switch being turned on, the supplied power generator restarts the voltage converting operation to generate the supplied power, where the first time period is before the second time period.

US Pat. No. 10,992,169

VEHICLE-MOUNTED BACKUP DEVICE

AutoNetworks Technologies...

1. A backup device in a vehicle-mounted power source system that includes a power source unit configured to supply power to a power supply target, a power path serving as a path for supplying power from the power source unit to the power supply target, and a power storage unit serving as a power supply source at least when power supply from the power source unit cuts out, the backup device comprising:a charging and discharging unit having a charging circuit and a discharging circuit, the charging circuit configured to step-up or step-down a voltage applied to a power storage unit-side conduction path serving as a discharging path from the power storage unit and apply a resulting voltage to an output-side conduction path;
a control unit configured to control the discharging circuit to apply, to the output-side conduction path, a predetermined target voltage that is lower than a voltage that is applied to the power path when the power source unit is fully charged; and
an element unit provided between the power path and the output-side conduction path, and configured to restrict flow of current from the output-side conduction path to the power path in a case where the voltage of the output-side conduction path is lower than the voltage of the power path, and to allow flow of current from the output-side conduction path to the power path side in a case where the voltage of the output-side conduction path is higher than the voltage of the power path,
wherein
the control unit:
causes the charging circuit to perform a charging operation for charging the power storage unit in response to a predetermined charge start condition being established, causes the discharging circuit to perform voltage conversion such that the predetermined target voltage is applied to the output-side conduction path in a case where an output voltage of the power storage unit is equal to or greater than a predetermined first threshold, wherein the predetermined first threshold is a value obtained by subtracting a forward voltage of the element from the predetermined target voltage, and stops the charging operation of the charging circuit in a case where the output voltage of the power storage unit reaches a second threshold, the second threshold being higher than the predetermined first threshold, and
stops the charging operation of the charging circuit in a case where the voltage of a wiring part that is electrically connected to the power source unit and disposed between the power source unit and the power path becomes equal to or less than the predetermined first threshold.

US Pat. No. 10,992,168

APPARATUS OF POWER DISTRIBUTION AND METHOD OF POWER DISTRIBUTION

Delta Electronics (Shangh...

1. An apparatus of power distribution, comprising:a power regulating device, having a first output end and a second output end, wherein the first output end is electrically connected to an AC power grid, and the second output end is a single-phase three-wire voltage source output end; and
a first auxiliary power distribution component, having a first movable end, a first fixed end and a second fixed end, wherein the first movable end is electrically connected to a load, the first fixed end is electrically connected to the AC power grid, the second fixed end is electrically connected to the second output end, the second fixed end has three connection terminals, and one of the three connection terminals is a ground line that is grounded,
wherein, when the AC power grid is normal, the first movable end is connected to the first fixed end, such that the AC power grid supplies power to the load; and when the AC power grid is abnormal, the first movable end is connected to the second fixed end, such that the power regulating device supplies power to the load through the second output end, and
a neutral line of the load is electrically and fixedly connected to a neutral line of the second output end, the neutral line of the load and the neutral line of the second output end themselves are not grounded, and when the first movable end is connected to the second fixed end, the neutral line of the load and the neutral line of the second output end are electrically connected to the ground line of the second fixed end, and grounded through the ground line of the second fixed end.

US Pat. No. 10,992,167

POWER SUPPLY CIRCUIT, POWER SUPPLY SYSTEM, AND CONTROL METHOD

RENESAS ELECTRONICS CORPO...

1. A power supply circuit comprising:a step-down DC/DC converter that outputs a step-down voltage obtained by stepping down a voltage supplied from a power line;
a step-up/down DC/DC converter that outputs a voltage obtained by stepping up or stepping down the step-down voltage or the voltage supplied from the power line to a power line communication circuit;
a switch circuit that connects an input of the step-up/down DC/DC converter to an output of the step-down DC/DC converter or the power line; and
a control circuit that controls connection of the switch circuit based on a voltage value of the voltage supplied from the power line,
wherein the control circuit controls the switch circuit to connect the input of the step-up/down DC/DC converter to the output of the step-down DC/DC converter if the voltage value of the voltage supplied from the power line exceeds a switching voltage, and
wherein the control circuit controls the switch circuit to connect the input of the step-up/down DC/DC converter to the power line if the voltage value of the voltage supplied from the power line is less than or equal to the switching voltage.

US Pat. No. 10,992,166

VEHICLE REDUNDANT ENERGY SYSTEM

Lyft, Inc., San Francisc...

1. A method comprising:determining that a first voltage at a load reaches a predefined voltage amount, wherein the first voltage is provided to the load from a vehicle voltage source on a vehicle;
subsequent to determining that the first voltage has reached the predefined voltage amount, disconnecting the vehicle voltage source from the load;
determining an operational status of a backup vehicle power system on the vehicle based on monitoring a second voltage at the load while the vehicle voltage source is disconnected from the load, wherein determining the operational status of the backup vehicle power system comprises:
determining whether the second voltage that is monitored at the load is less than a threshold voltage amount during a test period that is based on an expected voltage output of the backup vehicle power system during the test period; and
updating vehicle status information based on the operational status.

US Pat. No. 10,992,165

REDUNDANT POWER SUPPLY SYSTEM

TOYOTA JIDOSHA KABUSHIKI ...

1. A redundant power supply system in which a predetermined power is supplied via a first DC-DC converter to a first battery and a first load of a primary system, and the predetermined power is supplied via a second DC-DC converter to a second battery and a second load of a secondary system independent of the primary system,the redundant power supply system comprising:
a first switching element interposed between the second DC-DC converter and the second battery;
a first diode connected in parallel to the first switching element and configured to perform rectification in a direction from the second battery toward the second DC-DC converter; and
a control section configured to turn off the first switching element when the second battery is in a first state where a stored power amount thereof is equal to or larger than a predetermined first threshold value, and to turn on the first switching element when the second battery is in a state other than the first state.

US Pat. No. 10,992,162

METHOD FOR DETECTING A STATE OF A VEHICLE ELECTRIC SYSTEM

Robert Bosch GmbH, Stutt...

1. A method for detecting a state of an electric system (150) of a motor vehicle including a battery (200), the electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120), and a rectifier (130) which is connected to the electric machine (100) via which the electric system (150) is connected to the electric machine (100); the method comprising:determining an oscillation frequency contribution of a generator voltage from the electric machine (100) within an excitation current (IE) of the rotor winding (110);
comparing the oscillation frequency contribution to a predetermined threshold value, the predetermined threshold being based on a length of a supply line between the electric machine (100) and the battery (200);
concluding that there is an interruption in the supply line when the oscillation frequency contribution is greater than the predetermined threshold value;
determining an oscillation amplitude (A) of the oscillation frequency contribution in an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100);
determining whether the interruption in the line is due to a sulfation of the battery (200) of the electric system (150) based on a rate of increase in the oscillation amplitude (A) of the oscillation frequency contribution; and
adjusting a control parameter of the generator unit to a first predetermined control parameter when the interruption in the line is determined to be due to sulfation of the battery (200).

US Pat. No. 10,992,161

SOLID-STATE LIGHTING WITH EMERGENCY POWER CONTROL

Aleddra Inc., Renton, WA...

1. A luminaire power pack, comprising:at least two electrical conductors configured to couple to alternate-current (AC) mains;
a rechargeable battery comprising a positive potential terminal and a negative potential terminal with a terminal voltage across thereof;
at least one full-wave rectifier coupled to the at least two electrical conductors and configured to convert a line voltage from the AC mains into a first direct-current (DC) voltage;
a charging circuit comprising a control device, a transformer, a first ground reference, and a second ground reference electrically isolated from the first ground reference by the transformer, the charging circuit coupled to the at least one full-wave rectifier and configured to convert the first DC voltage into a second DC voltage that charges a voltage level of the rechargeable battery to reach a third DC voltage;
a light-emitting diode (LED) driving circuit comprising a third ground reference and a step-up converter, the LED driving circuit configured to receive the terminal voltage and to convert the terminal voltage into a fourth DC voltage with multiple output power levels when the line voltage from the AC mains is unavailable; and
a charging voltage detection and control circuit comprising a charging detection circuit, a power setting circuit, and a relay switch, the charging detection circuit configured to enable or disable the LED driving circuit according to availability of the AC mains, the power setting circuit configured to control the multiple output power levels, and the relay switch comprising a power sensing coil with a pick-up voltage,
wherein:
the power setting circuit comprises a voltage setting circuit configured to build up multiple reference voltages for the step-up converter to provide multiple LED driving currents accordingly;
the relay switch further comprises a first pair of input electrical terminals, a second pair of input electrical terminals, and a third pair of input electrical terminals, wherein the third pair of input electrical terminals are configured to receive the pick-up voltage to operate the power sensing coil;
the relay switch further comprises a pair of output electrical terminals configured to relay either the line voltage from the AC mains appeared at the first pair of input electrical terminals or the fourth DC voltage appeared at the second pair of input electrical terminals to the pair of output electrical terminals; and
a rechargeable battery test is configured to ensure that the terminal voltage is available at all times to operate the LED driving circuit.