US Pat. No. 9,621,330

SPLIT MICROWAVE BACKHAUL TRANSCEIVER ARCHITECTURE WITH COAXIAL INTERCONNECT

Maxlinear Asia Singapore ...

1. A communication system, comprising:
a conversion module configured to convert a signal between a radio frequency baseband (RF BB) and an intermediate frequency
(IF);

at least one RF phased array front-end module configured to convert the signal between the IF and a radio frequency (RF);
a coaxial interconnect configured to connect the conversion module with the at least one RF phased array front-end module,
and to facilitate a communication of the signal between the conversion module and the RF phased array front-end module,

wherein the at least one RF phased array front-end module comprises:
an active front-end (AFE) configured to reduce a first deterioration of the signal associated with the communication over
the coaxial interconnect:

a dedicated omnidirectional communication path, configured to reduce power losses and a second deterioration of the signal
associated with at least one of a power combiner and a power divider included within the at least one RF phased array front-end
module, wherein the dedicated omnidirectional communication path is separate from a path that the signal follows through the
at least one RF phased array front-end module;

a programmable gain attenuator;
a low noise amplifier (LNA), wherein the LNA and the programmable gain attenuator are included in the path that the signal
follows through the at least one RF phased array front-end module, and are configured to collectively reduce power losses
and perform gain control; and

a power divider network comprising a plurality of interpolated RF amplifiers, the power divider network being configured to
overcome divider loss associated with feeding a plurality of RF paths.

US Pat. No. 9,825,666

COMMUNICATION SYSTEM FOR TELEPHONE LINE ACCESS WITH CROSSTALK STABILITY

MAXLINEAR ASIA SINGAPORE ...

1. A system comprising:
telephone lines that cover a distance from a first location to separate points at second locations, wherein the telephone
lines are bundled together in a same telephone cable for at least a portion of the distance;

electronic equipment located at the first location, the electronic equipment comprising a first transceiver device for each
of the telephone lines, wherein each first transceiver device at the first location is configured to coordinate transmissions
over a respective telephone line coupled with the first transceiver device; and

second transceiver devices coupled respectively with the telephone lines at the second locations, such that each second transceiver
device is respectively paired with a first transceiver device at the first location;

wherein each pair of the first and second transceiver devices is configured to force transmission on the respective telephone
line connecting the pair when another pair of the first and second transceiver devices estimates a signal to noise ratio on
the telephone line connecting the other pair; and

wherein each pair of the first and second transceiver devices is configured to force transmission on its telephone line when
there is no data to send on its telephone line at a time when the other pair of the first and second transceiver devices estimates
the signal to noise ratio.

US Pat. No. 9,642,019

LOW LATENCY, AUTOMATIC REPEAT REQUEST (“ARQ”) IN A MULTI-DEVICE COMMUNICATIONS LINK

Maxlinear Asia Singapore ...

1. A modem configured to operate as a repeater in a communications link having a plurality of modems, the modem comprising:
a processor;
a memory to store a plurality of frames, wherein the frames include data frames and dummy frames that are dispersed among
the data frames; and

a transceiver configured to communicate with a subsequent modem of the plurality of modems according to a transmission schedule
in the processor,

wherein the processor is configured to:
detect a retransmission request for a first data frame that was previously transmitted to the subsequent modem of the plurality
of modems;

retransmit the first data frame to the subsequent modem using the transceiver, in replacement of a second data frame of the
plurality of data frames that was scheduled next for transmission;

transmit the second data frame using the transceiver after transmission of the first data frame;
transmit a third data frame in replacement of a first dummy frame that is scheduled for transmission after the second data
frame; and

remove the first dummy frame from the transmission schedule.

US Pat. No. 9,843,464

WIRELESS BACKHAUL

Maxlinear Asia Singapore ...

1. A receiver comprising:
a feedforward circuit, wherein the feedforward circuit comprises a first adaptive filter;
a phase recovery circuit operably coupled to the feedforward circuit, wherein phase recovery information from the phase recovery
circuit is based on an output from the feedforward circuit, wherein the phase recovery circuit comprises a third adaptive
filter, and wherein one or more taps of the third adaptive filter are based on one or more taps of a second adaptive filter;
and

a feedback circuit operably coupled to the feedforward circuit and the phase recovery circuit, the feedback circuit configured
to receive the phase recovery information from the phase recovery circuit and adjust a current symbol based at least in part
on the phase recovery information, wherein the feedback circuit comprises the second adaptive filter.

US Pat. No. 9,825,668

DEVICES AND METHODS FOR POWER CONSUMPTION CONTROL IN POWERLINE COMMUNICATIONS SYSTEMS AND APPARATUS

MAXLINEAR ASIA SINGAPORE ...

1. A method comprising:
determining information regarding a parameter to be used with a powerline communications (PLC) channel;
adjusting a control parameter of an analog front end of a PLC transceiver based on the determined information to adjust power
consumption of the analog front end of the PLC transceiver; and

transmitting or receiving data over the PLC channel with the adjusted control parameter of the analog front end of the PLC
transceiver.

US Pat. No. 10,798,715

POINT-TO-POINT RADIO SYSTEM HAVING A PHASED ARRAY ANTENNA SYSTEM

MAXLINEAR ASIA SINGAPORE ...

1. A radio system comprising:a modem;
a transmitter circuit, wherein the transmit circuit comprises a first plurality of front end circuits;
a receiver circuit, wherein the receiver circuit comprises a second plurality of front end circuits;
a phased array antenna system configured for transmitting and receiving radio signals, the phased array antenna system having an antenna pattern having a plurality of nulls, wherein each front end circuit of the first plurality of front end circuits is coupled to a plurality of transmit antenna elements and each front end circuit of the second plurality of front end circuits is coupled to a plurality of receive antenna elements;
a beamforming circuit coupled to the phased array antenna system; and
a control circuit coupled to the beamforming circuit to steer one or more nulls of the plurality of nulls of the antenna pattern in direction of an interferer to substantially reduce unwanted interference from radio frequency signals received by the receiver circuit, wherein the control circuit is configured to sum up, in anti-phase, radio frequency signals transmitted by the transmitter circuit with radio frequency signals received by the receiver circuit, and wherein the control circuit is configured to electrically isolate the transmit circuit from the receive circuit, without using a diplexer circuit, and wherein the control circuit is configured to maintain a performance gradient through an adjustment to at least one of (a) a phase shift configuration or (b) a gain shifting configuration, and recursively check received signal quality about an optimal operating point responsive to the adjustment to the at least one of (a) the phase shift configuration or (b) the gain shifting configuration.

US Pat. No. 10,419,069

COMMUNICATION SYSTEM FOR TELEPHONE LINE ACCESS WITH CROSSTALK MITIGATION

MAXLINEAR ASIA SINGAPORE ...

1. A system comprising:electronic equipment located at a first location, the electronic equipment comprising a plurality of first transceiver devices, wherein:
each first transceiver device is configured for coupling to a respective one of a plurality of telephone lines bundled together in a same telephone cable, to connect to a respective one of a plurality of second transceiver devices at a second location;
each first transceiver device controls communication over the respective telephone line, the controlling comprises:
assigning separate time slots for uplink communication from first transceiver device to the second transceiver device and downline communication from the second transceiver device to the first transceiver device; and
coordinating communication with other ones of the plurality of first transceiver devices, wherein the coordinating comprises aligning use of the time slots; and
based on said aligning, each first transceiver device assigns the time slots based on an unbalanced distribution between the downstream communication and the upstream communication, wherein the unbalanced distribution comprises more time slots assigned to downstream communication than to upstream communication.

US Pat. No. 10,367,547

DEVICES AND METHODS FOR POWER CONSUMPTION CONTROL IN POWERLINE COMMUNICATIONS SYSTEMS AND APPARATUS

MAXLINEAR ASIA SINGAPORE ...

1. A system comprising:a coupler that connects the system to a power line;
an analog front end (AFE) for handling communications over the power line via the coupler; and
a processor for controlling power consumption of the analog front end (AFE);
wherein:
the processor:
determines information regarding one or more control parameters of the analog front end (AFE), the information relating to powerline communications (PLC) over the power line; and
based on the information, sets or adjusts the one or more control parameters of the analog front end (AFE), to control power consumption of the analog front end (AFE) during the powerline communications (PLC) over the power line, wherein the processor sets the one or more control parameters of the analog front end (AFE) to ensure that noise and distortion caused by the analog front end (AFE) are adapted to noise from the PLC over the power line; and
the analog front end (AFE) transmits or receives data over the power line using the powerline communications (PLC), based on the one or more control parameters.

US Pat. No. 10,601,463

COMMUNICATION SYSTEM FOR TELEPHONE LINE ACCESS WITH CROSSTALK STABILITY

MAXLINEAR ASIA SINGAPORE ...

1. A transceiver device comprising:coupling circuitry configured to connect with a telephone line that is bundled with additional telephone lines in a telephone cable;
an analog front end; and
a controller configured to control communications over the telephone line, via the analog front end and the coupling circuitry;
wherein:
the controlling comprises forcing a transmission on the telephone line based on estimation of signal to noise ratio, by another transceiver device, on one of the additional telephone lines in the telephone cable; and
the forced transmission comprises a probe frame, and the transceiver device has an initial seed for a first sub-carrier of a first symbol of a payload of the probe frame that is unique among transceiver devices coupled with the additional telephone lines in the telephone cable.