US Pat. No. 9,160,044

MILLIMETER WAVEBAND FILTER AND METHOD OF MANUFACTURING THE SAME

ANRITSU CORPORATION, Kan...

1. A frequency variable type millimeter waveband filter comprising:
a first waveguide which has a transmission lane having a size allowing electromagnetic waves in a predetermined frequency
range of a millimeter waveband to propagate in a TE10 mode;

a second waveguide which is formed such that a first transmission line which has a size greater than the outer size of the
first waveguide allowing the electromagnetic waves in the predetermined frequency range to propagate in the TE10 mode and
receives one end of the first waveguide at a gap from the outer circumference of the first waveguide and a second transmission
line having the same size as the transmission line of the first waveguide are arranged concentrically and successively; and

a pair of electric wave half mirrors which have characteristics to transmit at part of the electromagnetic waves in the predetermined
frequency range and to reflect a part of the electromagnetic waves, one of the electric wave half mirrors being fixed to the
transmission line of the first waveguide, and the other electric wave half mirror being fixed to the second transmission line
of the second waveguide,

wherein the first waveguide is relatively moved with respect to the second waveguide such that the interval between the pair
of electric wave half mirrors is changed, and an electromagnetic wave at a resonance frequency to be determined by the interval
of the pair of electric wave half mirrors from among the electromagnetic waves in the predetermined frequency range is selectively
transmitted,

the second waveguide includes
a first transmission line forming body which has a plate-shaped portion having a uniform thickness, the plate-shaped portion
having a through hole which is formed in a thickness direction to form the first transmission line, and

a second transmission line forming body which has a plate-shaped portion having a uniform thickness, the plate-shaped portion
having a through hole which is formed in a thickness direction to form the second transmission line, and

the first transmission line forming body and the second transmission line forming body are formed in a state where the plate-shaped
portions overlap each other such that the through holes are arranged concentrically and successively.

US Pat. No. 9,154,980

FADING SIMULATOR AND FADING SIMULATION METHOD

ANRITSU CORPORATION, Kan...

1. A fading simulator that simulates a multi-input multi-output communication system (MIMO)-type transmission path by adding
a fading effect to an input signal, the fading simulator configured to set up a fading parameter having a delay parameter
for adding a delay equivalent to a propagation distance of radio waves to the input signal, a Doppler effect parameter for
adding thereto a Doppler effect, and a path loss parameter for adding thereto a path loss indicating a reduced level caused
by the propagation distance and reflection of radio waves, the fading simulator configured to:
set up a predetermined transition time, at a time of switching of a fading setting using the fading parameter, between the
fading setting before switching and the fading setting after switching; and

smoothly change a value of the delay parameter, the Doppler effect parameter and the path loss parameter before the switching
to a value of the delay parameter, the Doppler effect parameter and the path loss parameter after the switching during the
predetermined transition time,

wherein the fading simulator is further configured to generate:
a delay equivalent to a propagation distance of radio waves,
a Doppler effect for adding a scattering effect of radio waves, and
a path loss indicating a reduced level caused by the propagation distance and reflection of radio waves.

US Pat. No. 9,226,324

MOBILE TERMINAL TEST DEVICE AND METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal test device for testing a mobile terminal which transmits and receives a signal to and from a base station
to perform a link establishment process and a location registration process at the beginning of an operation when power is
turned on or a reset operation is performed, changes to an idle state after a link is opened, performs the link establishment
process again in response to a connection request from the base station in the idle state, and performs communication through
the base station, comprising:
link establishment means for exchanging a message required for the link establishment with the mobile terminal at the beginning
of the operation;

location registration means for performing a location registration process for the mobile terminal, the link to which is established
by the link establishment means;

test means for performing a transmission and reception test for the mobile terminal; and
test mode change means for transmitting a message “downlink Direct Transfer (Activate RB Test Mode)” for setting test mode
connection from the base station to the mobile terminal when the location registration means completes the registration of
the location of the mobile terminal and making the mobile terminal return a response message to the message, thereby changing
the mobile terminal to a test mode,

wherein the test means performs the transmission and reception test for the mobile terminal which is changed to the test mode
by the test mode change means.

US Pat. No. 9,385,407

RADIO-WAVE HALF MIRROR FOR MILLIMETER WAVEBAND AND METHOD OF SMOOTHING TRANSMITTANCE

ANRITSU CORPORATION, Kan...

1. A radio-wave half mirror for a millimeter wave band that is fixed inside a transmission line formed by a rectangular waveguide
propagating incident electromagnetic waves of the millimeter wave band in a single mode so as to transmit a part of the incident
electromagnetic waves and reflect another part thereof, the radio-wave half mirror comprising:
a half mirror body where a slit for transmitting the incident electromagnetic waves is provided along one direction of the
rectangular waveguide on a metal plate which has a shape blocking the transmission line; and

a dielectric plate that has a predetermined thickness in a direction of propagation of the incident electromagnetic waves
and a relative permittivity ?r of at least 3.4, has a shape blocking the transmission line, is provided on one surface side of the half mirror body so as
to form a dielectric resonator which resonates at a frequency determined by the thickness and the permittivity, and has a
transmittance characteristic having a degree of inclination substantially the same as that of the half mirror body in a slope
which is inverse to a slope of a transmittance characteristic of the half mirror body in a desired frequency range of the
millimeter wave band,

wherein a transmission characteristic of the half mirror body and a resonance characteristic of the dielectric plate combine
to smooth overall transmittance characteristics of the radio-wave half mirror.

US Pat. No. 9,118,406

MEASUREMENT APPARATUS AND MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. A measurement apparatus that measures an output signal in a test mode of a terminal to be tested capable of switching between
a communication mode in which communication is performed according to a plurality of different communication methods and the
test mode for testing communication characteristics in the communication mode, the measurement apparatus comprising:
measurement item setting means for setting measurement items for each of the plurality of communication methods;
measurement item information transmission means for transmitting information of set measurement items, which are set by the
measurement item setting means, to the terminal to be tested so as to output continuous test signals, each of which is a signal
that the terminal to be tested outputs on the basis of the information of the set measurement items in the test mode based
on each of the communication methods, and in which a predetermined time gap is set between each of the test signals;

continuous test signal receiving means for receiving the continuous test signal from the terminal to be tested; and
measurement means for measuring characteristics of each of the test signals, which are included in the received continuous
test signal, for the set measurement items,

wherein the measurement means includes an acquisition section, which acquires the test signals sequentially, and a plurality
of measurement sections, which measure characteristics of the test signals in order of acquisition of the acquisition section,
and

wherein each of the measurement sections measures each characteristic of one test signal in parallel with acquisition of a
test signal subsequent to the one test signal after the one test signal is acquired by the acquisition section.

US Pat. No. 9,106,301

RELAY NODE SIMULATOR AND TEST METHOD

ANRITSU CORPORATION, Kan...

1. A relay node simulator that outputs a test signal obtained by simulating a signal in which a first RF signal transmitted
from a base station and a second RF signal that is transmitted to a mobile communication terminal by a relay node that receives
the first RF signal are multiplexed, the relay node simulator comprising:
a user interface unit that displays an operation screen and receives an operation input from an operator;
a marker display control unit that correlates a base station marker corresponding to the base station, a relay node marker
corresponding to the relay node, and a terminal marker corresponding to the mobile communication terminal to a predetermined
coordinate system and allows the markers to be displayed on the operation screen, and that allows at least one of the markers
to be displayed on the operation screen in a movable manner in accordance with the operation input;

a position specifying unit that specifies respective positions of the base station marker, the relay node marker, and the
terminal marker in the coordinate system; and

a pattern display control unit that allows a magnitude of a characteristic value relating to the first RF signal or the second
RF signal to be displayed on the operation screen as a discriminable pattern (G11, G21, G22, or G31),

wherein, when a position of at least one of the respective markers is specified in the pattern, the test signal to which the
characteristic value corresponding to the specified position is applied is output, and

wherein the test signal is the signal in which the first RF signal transmitted from the base station and the second RF signal
that is transmitted to a mobile communication terminal by a relay node that receives the first RF signal are multiplexed.

US Pat. No. 9,408,093

MOBILE TERMINAL TEST DEVICE AND MOBILE TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal test method that performs communication between a simulated base station and a mobile terminal to be
tested and tests the mobile terminal, comprising:
a step of not responding to a transmission signal from the mobile terminal until a predetermined period of time elapses after
output power of the mobile terminal reaches a saturation level and of setting the mobile terminal to a designation value saturation
level excess state in which an output power designation value for designating the output power in the mobile terminal is predicted
to be within a range that is greater than the saturation level, during a random access process to the mobile terminal;

a step of allocating M (where M is an integer equal to or greater than 2) resource blocks to an uplink physical channel, instructing
the mobile terminal, which is set to the designation value saturation level excess state, to transmit a signal in which data
is inserted into the allocated M resource blocks, and measuring power of a physical channel of the signal, and of allocating
N (where N is an integer less than M) resource blocks to the uplink physical channel, instructing the mobile terminal, which
is set to the designation value saturation level excess state, to transmit a signal in which data is inserted into the allocated
N resource blocks, and measuring power of a physical channel of the signal; and

a step of determining whether a difference between a first measured value which is measured when the mobile terminal transmits
the signal in which the data is inserted into the M resource blocks and a second measured value which is measured when the
mobile terminal transmits the signal in which the data is inserted into the N resource blocks is within a predetermined allowable
range that is determined on the basis of a ratio of the value M to the value N,

wherein, when the difference between the first measured value and the second measured value is within the allowable range,
the mobile terminal is determined to be a quick response type which quickly responds to an output power reduction instruction
in the designation value saturation level excess state, and

when the difference between the first measured value and the second measured value is not within the allowable range, the
mobile terminal is determined to be a non-quick-response type which does not quickly respond to the output power reduction
instruction in the designation value saturation level excess state.

US Pat. No. 9,350,499

CARRIER AGGREGATION TESTING METHOD AND APPARATUS FOR PERFORMING THE SAME

Anritsu Corporation, Tok...

1. A carrier aggregation testing method for a communication system, the method comprising the steps of:
allocating a primary component carrier between a User Equipment and a carrier aggregation testing apparatus; wherein the carrier
aggregation testing apparatus, is configured to act as a Base Station with regard to the User Equipment;

allocating at least one functionally limited secondary component carrier that transmits a reduced number of signals and channels
between the User Equipment and the carrier aggregation testing apparatus;

aggregating the at least one functionally limited secondary component carrier with the primary component carrier;
executing a carrier aggregation test being based on a functionality of the at least one functionally limited secondary component
carrier.

US Pat. No. 9,313,682

TEST DEVICE AND TEST METHOD

ANRITSU CORPORATION, Kan...

1. A test device for testing a mobile communication terminal that can communicate using a code division multiple access system
and a time division duplex system in which a communication frame is divided into a plurality of time slots, comprising:
a communication unit that sets various physical channels and communicates with the mobile communication terminal;
a display unit;
a display control unit that generates a display screen related to the test and displays the display screen on the display
unit; and

a setting information acquisition unit that acquires setting information related to allocation of the physical channels,
wherein the display control unit includes an allocation status display control unit that generates an allocation status display
screen indicating the correspondence of the physical channels to the time slot and a channelization code on the basis of the
acquired setting information.

US Pat. No. 9,140,730

SIGNAL ANALYSIS APPARATUS AND SIGNAL ANALYSIS METHOD

ANRITSU CORPORATION, Kan...

1. A signal analysis apparatus comprising:
frequency conversion means, that includes a first attenuator which adjusts a level of an analog input signal, for converting
the input signal into a predetermined intermediate frequency signal;

second attenuation means for adjusting a level of an output signal from the frequency conversion means;
analog/digital conversion means for converting an output signal from the second attenuation means into a digital signal;
frequency response correction means for correcting a frequency response of an output signal from the analog/digital conversion
means;

signal analysis means for analyzing an output signal from the frequency response correction means; and
noise floor level subtraction means that receives the output signal from the frequency response correction means, subtracts,
in a predetermined frequency band, a noise level of the analog/digital conversion means from a noise floor level indicating
a noise level of a signal path, which includes the frequency conversion means, the second attenuation means, and the analog/digital
conversion means, to the frequency response correction means, and outputs the subtracted signal to the signal analysis means.

US Pat. No. 9,397,923

MOBILE COMMUNICATION TERMINAL TEST DEVICE AND MOBILE COMMUNICATION TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile communication terminal test device comprising:
test signal transmitting means for transmitting, to a mobile communication terminal, a test signal which is divided into sub-frames
in a time axis direction, is divided into resource blocks in a frequency axis direction, and includes a plurality of radio
resource regions each of which is surrounded by one or more sub-frames and one or more resource blocks;

response signal receiving means for receiving a response signal to the test signal from the mobile communication terminal;
characteristic value conversion means for converting a characteristic value of the response signal from a characteristic value
corresponding to time to a characteristic value corresponding to a frequency, on the basis of correspondence information between
a predetermined position of one radio resource region in the time axis direction and a predetermined position of the radio
resource region in the frequency axis direction; and

frequency characteristic display means for displaying the characteristic value so as to correspond to the frequency,
wherein the test signal transmitting means transmits, to the mobile communication terminal, the test signal which includes
the radio resource region for each predetermined time interval and in which the position of the radio resource region in the
frequency axis direction varies for each predetermined time interval.

US Pat. No. 9,065,581

OPU FRAME GENERATING DEVICE AND OPU FRAME TEST DEVICE

ANRITSU CORPORATION, Kan...

1. An Optical channel Payload Unit (OPU) frame device comprising:
a frame generating unit that generates an OPU frame having a payload area;
a second oscillating unit that generates a second clock signal for driving the frame generating unit;
a frequency setting unit that sets an arbitrary frequency corresponding to a bit rate of data which can be stored in the payload
area;

a parameter calculating unit that calculates a parameter Cm indicating an integer part of an amount of data included in the payload area using the arbitrary frequency set by the frequency
setting unit;

a data inserting unit that outputs a timing signal determined by the parameter Cm calculated by the parameter calculating unit and inserts data at a position determined by the parameter Cm in the payload area; and

a data generating unit that generates data in synchronization with the timing signal and outputs the generated data to the
data inserting unit,

wherein the frame generating unit generates the OPU frame having the payload area into which the data has been inserted by
the data inserting unit,

the second clock signal drives the parameter calculating unit and the data inserting unit, in addition to the frame generating
unit,

the frequency setting unit sets an arbitrary frequency range corresponding to the bit rate of the data which can be stored
in the payload area and sequentially changes the arbitrary frequency in the set arbitrary frequency range,

the parameter calculating unit sequentially calculates the parameter Cm using the frequency which is sequentially changed,

the data inserting unit acquires the parameter Cm which is sequentially calculated from the parameter calculating unit, sequentially generates the timing signal using the parameter
Cm which is sequentially calculated and inserts the generated data with a common frequency from the data generating unit at a
position determined by the acquired parameter Cm in the payload area, and

the data generating unit sequentially generates data in synchronization with the timing signal which is sequentially changed.

US Pat. No. 9,389,255

MILLIMETER-WAVE BAND SPECTRUM ANALYSIS DEVICE AND ANALYSIS METHOD

ANRITSU CORPORATION, Kan...

1. A millimeter-wave band spectrum analysis device comprising:
a millimeter-wave band filter that includes a transmission line which is formed by a waveguide that propagates electromagnetic
waves in a first millimeter-wave frequency band from one end to the other end in a single mode, a pair of planar radio wave
half mirrors which are arranged so as to be opposite to each other with a distance therebetween while blocking the inside
of the transmission line, transmit some of the electromagnetic waves in the first frequency band, and reflect some of the
electromagnetic waves, and resonance frequency change means for changing an electrical length between the pair of radio wave
half mirrors to change a resonance frequency of a resonator formed between the pair of radio wave half mirrors in the first
frequency band, extracts a signal component in a band having the resonance frequency as a passband center frequency from a
signal which is input from one end of the transmission line, and outputs the signal component from the other end;

a frequency conversion unit that mixes the output signal from the millimeter-wave band filter with a first local signal with
a fixed frequency to convert the output signal into a signal in a second frequency band lower than the first frequency band;

a spectrum detection unit that converts each frequency component of the signal in the second frequency band which is converted
by the frequency conversion unit into each frequency component in a predetermined intermediate frequency band using a second
local signal whose frequency can be swept and detects the level of each frequency component; and

a control unit that stores data which associates the resonance frequency with the electrical length between the pair of radio
wave half mirrors of the millimeter-wave band filter in advance, changes the passband center frequency of the millimeter-wave
band filter so as to cover an observation frequency range on the basis of the data when frequency resolution and a desired
observation frequency range of the first frequency band are designated, controls the sweep of the frequency of the second
local signal of the spectrum detection unit, and detects a spectrum waveform of a signal in the observation frequency range
with the frequency resolution.

US Pat. No. 9,331,729

MOBILE TERMINAL TEST DEVICE AND MOBILE TERMINAL TEST METHOD

ANRITSU CORPORATION, Ats...

1. A mobile terminal test device comprising:
a transmitting/receiving unit including a transmitting unit that transmits a downlink signal to a mobile terminal to be tested
and a receiving unit that receives an uplink signal output from the mobile terminal which has received the downlink signal
and converts the uplink signal into a baseband signal;

a test processing unit that simulates a base station, transmits and receives signals to and from the mobile terminal through
the transmitting/receiving unit, and performs a process required to test the mobile terminal;

a display unit that displays a test result;
frequency variation giving means for giving a predetermined frequency variation when a situation in which the mobile terminal
that moves together with a high-speed moving body approaches or is separated from the base station is simulated to the downlink
signal which is transmitted to the mobile terminal by the transmitting unit;

frequency variation detection means for, when the downlink signal to which the predetermined frequency variation is given
is transmitted from the transmitting unit, receiving the baseband signal obtained by the receiving unit and detecting a frequency
variation of the uplink signal;

frequency correction means for correcting a frequency of a local signal which is used by the receiving unit to obtain the
baseband signal, on the basis of the frequency variation detected by the frequency variation detection means; and

variation characteristic display means for displaying, on the display unit, a characteristic of the frequency variation of
the uplink signal that is transmitted from the mobile terminal in response to the downlink signal to which the predetermined
frequency variation is given, on the basis of the frequency variation detected by the frequency variation detection means,

wherein the frequency correction means is configured to change a frequency correction interval of the local signal, corrects
the frequency of the local signal at a first interval corresponding to a rate of the predetermined frequency variation when
the frequency variation giving means gives the predetermined frequency variation to the downlink signal, and corrects the
frequency of the local signal at a second interval longer than the first interval when the frequency variation giving means
does not give the predetermined frequency variation to the downlink signal.

US Pat. No. 9,246,789

TESTING APPARATUS AND TEST DISPLAY METHOD

Anritsu Corporation, Ats...

1. A testing apparatus for testing a mobile communication terminal (10), comprising:
a system information acquisition unit (51) configured to extract data associated with system information from at least one of a test scenario for operating the testing
apparatus, and a communication log between the mobile communication terminal and the testing apparatus;

a display unit (41) configured to display a schedule of the system information; and

a display controller (422) configured to create a transmission schedule based on the extracted data associated with system information, and to cause
the display unit to display the transmission schedule as the schedule of the system information, the transmission schedule
being written in a tabular form in which a block type of the system information is displayed at a position to which a transmission
frame for transmitting the system information is allocated.

US Pat. No. 9,184,486

MILLIMETER WAVEBAND FILTER AND METHOD OF VARYING RESONANT FREQUENCY THEREOF

ANRITSU CORPORATION, Kan...

1. A millimeter wave band filter comprising:
a transmission line that is formed by a waveguide into which electromagnetic waves with a predetermined frequency range of
a millimeter wave band are incident and which propagates the corresponding incident electromagnetic waves from one end to
the other end in a TE10 mode; and

a pair of radio-wave half mirrors that are disposed opposite each other with a space interposed therebetween so as to block
the inside of the transmission line and have planar shapes and a characteristic of transmitting a part of the electromagnetic
waves with the predetermined frequency range and reflecting another part thereof,

wherein in the electromagnetic waves incident from the one end of the transmission line, a frequency component centered on
a resonant frequency of a resonator, which is formed between the pair of radio-wave half mirrors, is selectively output from
the other end of the transmission line, and

in order to change an electrical length between the pair of radio-wave half mirrors, at least one of space-varying means,
which varies a space between the pair of radio-wave half mirrors, and permittivity-varying means, which varies permittivity
of a dielectric material inserted between the pair of radio-wave half mirrors, is provided.

US Pat. No. 9,485,682

MOBILE TERMINAL TESTING APPARATUS AND INTERFERENCE STATE SIMULATING METHOD FOR USE IN THE SAME

ANRITSU CORPORATION, Kan...

1. A mobile terminal testing apparatus that simulates a base station for mobile communication in order to test a mobile communication
terminal, the mobile terminal testing apparatus comprising:
a cell initialization processing unit that initializes a cell that is subject to interference and an interfering cell that
interferes with the cell that is subject to the interference, with a parameter for the cell that is subject to the interference,
which is set in advance, and a parameter for the interfering cell, which is set in advance; and

a cell combination processing unit that adjusts output levels of a signal of the cell that is subject to the interference
and a signal of the interfering cell and performs combination in order to simulate an interference state.

US Pat. No. 9,413,570

MOBILE TERMINAL TEST DEVICE AND MOBILE TERMINAL TEST METHOD

ANRITSU CORPORATION, Ats...

1. A mobile terminal test device comprising:
frequency designation means for designating an uplink frequency and a downlink frequency which are used for communication
based on an FDD system with a mobile terminal to be tested;

a transmitting unit that outputs a downlink signal to be sent to the mobile terminal with the designated frequency;
a coupler that sends the downlink signal output from the transmitting unit to the mobile terminal and inputs an uplink signal
output from the mobile terminal;

a receiving unit that mixes the uplink signal input through the coupler with a first local signal which has a predetermined
frequency difference from the designated uplink frequency, performs a high-frequency cutoff process on the mixed signal, performs
heterodyne conversion on the input uplink signal to convert a frequency of the input uplink signal into a frequency in an
intermediate frequency band including the predetermined frequency, converts the heterodyne-converted signal into a digital
signal string, and outputs the digital signal string;

a quadrature demodulator that multiplies the output from the receiving unit by second and third local signals which have a
frequency equal to the predetermined frequency and have a phase difference of 90 degrees therebetween and outputs baseband
signals which are orthogonal to each other;

a baseband processing unit that receives the baseband signals orthogonal to each other which are output from the quadrature
demodulator as an in-phase component and a quadrature component of a baseband signal obtained by modulating the uplink radio-frequency
signal and performs signal processing required for testing the mobile terminal;

frequency comparison means for comparing the levels of the uplink and downlink frequencies designated by the frequency designation
means;

heterodyne switching means for setting a frequency of the first local signal to be lower than the uplink frequency by the
predetermined frequency such that frequency conversion is performed by a lower-side heterodyne system when the frequency comparison
means determines that the uplink frequency is lower than the downlink frequency; and for setting the frequency of the first
local signal to be higher than the uplink frequency by the predetermined frequency such that frequency conversion is performed
by an upper-side heterodyne system when the frequency comparison means determines that the uplink frequency is higher than
the downlink frequency; and

baseband switching means for outputting one baseband signal obtained by the multiplication of the second local signal by the
quadrature demodulator and the other baseband signal obtained by the multiplication of the third local signal by the quadrature
demodulator as an in-phase component and a quadrature component to the baseband processing unit, respectively, when the frequency
comparison means determines that the uplink frequency is lower than the downlink frequency; and for outputting the one baseband
signal and the other baseband signal obtained by the quadrature demodulator as the quadrature component and the in-phase component
to the baseband processing unit, respectively, when the frequency comparison means determines that the uplink frequency is
higher than the downlink frequency.

US Pat. No. 9,385,410

RADIO WAVE HALF MIRROR FOR MILLIMETER WAVE BAND AND METHOD OF FLATTENING TRANSMITTANCE THEREOF

ANRITSU CORPORATION, Kan...

9. A radio wave half mirror for a millimeter wave band that is fixed in a transmission line (11) formed by a waveguide which propagates incident electromagnetic waves in the millimeter wave band in a single mode, transmits
some of the incident electromagnetic waves, and reflects some of the incident electromagnetic waves, consisting of:
a blocking portion that has an outward shape blocking the transmission line; and
a slit for transmitting the incident electromagnetic waves that is provided so as to traverse the blocking portion in a direction
in which opposite inner walls of the transmission line are connected,

wherein a thickness of the blocking portion in a direction in which the incident electromagnetic waves pass through the slit
is set based on transmittance characteristics of the incident electromagnetic waves to flatten transmittance characteristics
of the radio wave half mirror for the millimeter wave band, and

wherein the blocking portion includes a blocking plate and a metal-plated portion that is formed on a surface of the blocking
plate including a slit-side surface.

US Pat. No. 9,098,605

TEST SYSTEM, TEST METHOD, AND TEST DEVICE

ANRITSU CORPORATION, Kan...

1. A test system comprising:
a test device including a layer processing unit that performs processes corresponding to a plurality of layers for a message
which is transmitted and received to and from a mobile communication terminal, which is a test target, according to a communication
protocol including the plurality of layers, a log processing unit that acquires communication data for each layer from the
layer processing unit and generates log information including the communication data, layer identification information for
identifying a transmission source layer and a destination layer of the communication data, and time information indicating
a time when the communication data is communicated, and a transmitting unit that transmits the log information to the outside;
and

a display device including a display unit and a display control unit that displays communication logs of the plurality of
layers on the display unit on the basis of the log information received from the transmitting unit of the test device,

wherein the log processing unit includes a log header generating unit that generates a log header including the layer identification
information and the time information and a log data generating unit that generates log data including the communication data,
and the log processing unit generates the log header and the log data as the log information,

the test device further includes a priority control unit that performs control such that the transmitting unit transmits the
log header prior to the log data, and

the display control unit displays the log such that the log header is associated with the log data.

US Pat. No. 9,986,449

MOBILE TERMINAL TEST DEVICE AND METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal test device for testing a mobile terminal serving as a mobile terminal test target which transmits and receives a signal to and from a base station to perform a link establishment process, a location registration process, and an opening link process at the beginning of an operation when power is turned on or a reset operation is performed, changes to an idle state after a link is opened, performs a link re-establishment process in response to a connection request from the base station in the idle state, and performs communication through the base station, comprising:link establishment means for exchanging a message required for the link establishment with the mobile terminal test target at the beginning of the operation;
test means for performing a transmission and reception test for the mobile terminal test target; and
test mode change means for transmitting a message “downlink Direct Transfer (Activate RB Test Mode)” for setting test mode connection from the base station to the mobile terminal test target when the link establishment means establishes the link to the mobile terminal test target and for making the mobile terminal test target return a response message to the message, thereby changing the mobile terminal test target to a test mode without performing the location registration process, the opening link process, and the re-establishment process that is performed on the mobile terminal test target in the idle state,
wherein the test means performs the transmission and reception test for the mobile terminal test target which is changed to the test mode by the test mode change means.

US Pat. No. 9,301,169

FADING SIMULATOR AND FADING SIMULATION METHOD

Anritsu Corporation, Ats...

1. A fading simulator including a noise generation unit that generates an additive white Gaussian noise signal, and configured
to receive a test signal to be input to a mobile communication terminal as a test target, and to add, to the test signal,
a radio wave scattering effect, using the additive white Gaussian noise signal, comprising:
a setting module configured to cause the noise generation unit to generate an additive white Gaussian noise signal of a predetermined
level, when a first test is performed on the mobile communication terminal, the setting module also setting for causing the
noise generation unit to generate the same additive white Gaussian noise signal as the additive white Gaussian noise signal
in the first test, when a second test that re-simulates the first test is performed after the first test;

a uniform random number generation module configured to sequentially generate uniform random numbers, the uniform random numbers
being determined uniquely in accordance with clock signals when predetermined data is set; and

a normal random number transform module configured to transform, into normal random numbers, the uniform random numbers generated
by the uniform random number generation means;

the setting module having:
a data setting module configured to set the predetermined data in the uniform random number generation module, the data setting
module setting the predetermined data, set in the first test, in the uniform random number generation module when the second
test is performed.

US Pat. No. 9,294,945

TEST APPARATUS AND TEST METHOD

Anritsu Corporation, Ats...

1. A test apparatus configured to communicate with a pseudo terminal that simulates a communication function of a mobile communication
terminal for transmitting and receiving radio frequency signals based on a predetermined communication standard, thereby testing
the communication function during execution thereof, comprising:
a transmitting/receiving module configured to transmit and receive digital data corresponding to a baseband signal to and
from the pseudo terminal;

a reception buffer configured to temporarily store uplink data as the data received from the pseudo terminal by the transmitting/receiving
module;

a transmission buffer configured to temporarily store downlink data as the data to be transmitted to the pseudo terminal via
the transmitting/receiving module;

an arithmetic processing module configured to execute reception arithmetic processing, based on the predetermined communication
standard, on the uplink data read from the reception buffer, to execute transmission arithmetic processing based on the predetermined
communication standard to generate the downlink data, and to store the generated downlink data in the transmission buffer;
and

a management module configured to provide, under a first predetermined condition, the arithmetic processing module with a
first instruction to execute the reception arithmetic processing, and to provide, under a second predetermined condition,
the transmitting/receiving module with a second instruction to transmit the downlink data stored in the transmission buffer.

US Pat. No. 9,220,079

SIGNAL ANALYSIS DEVICE, SYNCHRONIZATION SYSTEM, AND SYNCHRONIZATION METHOD

ANRITSU CORPORATION, Kan...

1. A synchronization system that synchronizes a plurality of signal analysis devices, comprising:
the plurality of signal analysis devices that analyze a radio frequency (RF) signal output from an object to be measured,
each of the plurality of signal analysis devices comprising:

a local signal generation unit that generates a local signal;
a mixer unit that receives the local signal and the RF signal at a first time or receives the local signal and a correction
signal, which is externally inputted, at a second time, converts the RF signal or the correction signal into an intermediate
frequency signal in a predetermined intermediate frequency band, and outputs the intermediate frequency signal;

an analog-to-digital converter that samples the intermediate frequency signal to convert the intermediate frequency signal
into a digital signal string;

a synchronization data generation unit that outputs the intermediate frequency signal as first synchronization data which
is associated with time based on timing of a trigger signal externally inputted, when the correction signal is input to the
mixer unit;

a synchronization correction value calculation unit that calculates an amplitude ratio, a phase difference, and a time difference
between the first synchronization data which is output from the synchronization data generation unit and second synchronization
data which is externally inputted as a first synchronization correction value, on the basis of the first synchronization data
and the second synchronization data; and

a correction unit that corrects the amplitude, phase, and timing of the RF signal on the basis of the first synchronization
correction value calculated by the synchronization correction value calculation unit when the RF signal is input to the mixer
unit; and

a signal generator that simultaneously inputs the same correction signal to the mixer units of two of the plurality of signal
analysis devices and simultaneously inputs the same trigger signal to the synchronization data generation units of the two
signal analysis devices.

US Pat. No. 9,100,862

TEST SIGNAL GENERATION APPARATUS AND METHOD BASED ON LTE-ADVANCED SYSTEM

ANRITSU CORPORATION, Kan...

1. A test signal generation apparatus based on an LTE-Advanced system comprising:
a display unit;
an operation unit;
parameter file storage means for storing in advance test signal generating parameter files which can be allocated to a plurality
of component carriers used to test an operation of a device under test, which is a base station or a user equipment corresponding
to the LTE-Advanced system, or an RF device used in the base station or the user equipment;

carrier arrangement designation means for displaying, on the display unit, a screen for selecting one of an intra-band type
in which the plurality of component carriers are contiguously or non-contiguously arranged in one allocated frequency band
for communication and an inter-band type in which the plurality of component carriers are divided and arranged in different
allocated frequency bands for communication such that the operation unit is operated to designate one of the intra-band type
and the inter-band type;

parameter file designation means for displaying a screen for selecting the parameter files stored in the parameter file storage
means on the display unit such that the operation unit is operated to designate any one of the parameter files;

parameter and frequency band allocation means for displaying, on the display unit, a screen of a list of the plurality of
component carriers and for designating at least one component carrier in the list and a screen for selecting the type of the
allocated frequency band for communication in which the component carrier in the list is arranged, when the parameter file
designation means designates the parameter file, such that the operation unit is operated to designate the component carrier
to which the designated parameter file is allocated and the allocated frequency band for communication in which the component
carrier is arranged; and

a test signal generation unit that generates test signals for each component carrier in the designated allocated frequency
band for communication on the basis of information designated by the carrier arrangement designation means and the parameter
and frequency band allocation means.

US Pat. No. 9,703,265

MEASUREMENT APPARATUS AND MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. A measurement apparatus for receiving a frame signal from a terminal to be tested and measuring characteristics of time-division
data included in the frame signal, the apparatus comprising:
measurement item setting means for setting measurement items for each item of the time-division data;
additional time storage means for storing additional time, which is set in advance, for each of the measurement items; and
measurement period setting means for setting a measurement period for measuring the time-division data by adding the additional
time before and after a data period assigned to the time-division data;

time-division data acquisition means for acquiring the time-division data during the measurement period;
time-division data measurement means for measuring the characteristics of the time-division data during the measurement period,
wherein the time-division data is acquired and the characteristics of the time division data are measured in parallel during
the measurement period.

US Pat. No. 9,386,468

MOBILE COMMUNICATION TEST APPARATUS AND TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile communication test apparatus that simulates an operation of a counter device which communicates as a counterparty
with an LTE-A (Long Term Evolution Advanced) mobile communication apparatus performing wireless communication by bundling
a plurality of frequency blocks, the mobile communication test apparatus comprising:
a logical channel distribution section that performs a distribution process on logical channel data to be transmitted to the
mobile communication apparatus, on a logical channel number basis, in accordance with preset distribution information;

a plurality of communication processing sections each of which is provided to correspond to each of the plurality of frequency
blocks and receives the logical channel data which is distributed by the logical channel distribution section; and

a data exchange section that transmits the logical channel data from each communication processing section to the communication
processing section which is to function as a transmission source of the corresponding data for the mobile communication apparatus,

wherein each communication processing section is provided with a MAC processing portion having a data retaining portion which
temporarily retains the logical channel data distributed by the logical channel distribution section, if the logical channel
data is addressed to the communication processing section itself, converts the logical channel data into transport channel
data, otherwise sends the logical channel data to the data exchange section, and

wherein the mobile communication test apparatus is configured to perform an operation test of the LTE-A mobile communication
apparatus.

US Pat. No. 9,871,278

MILLIMETER WAVEBAND FILTER AND METHOD OF VARYING RESONANT FREQUENCY THEREOF

ANRITSU CORPORATION, Kan...

1. A millimeter wave band filter comprising:
a transmission line that is formed by a plurality of waveguides and into which electromagnetic waves with a predetermined
frequency range of a millimeter wave band are incident and which propagates the corresponding incident electromagnetic waves
from one end to the other end in a TE10 mode; and

a pair of radio-wave half mirrors that are disposed opposite each other with a space interposed therebetween so as to block
the inside of the transmission line and have planar shapes and a characteristic of transmitting a part of the electromagnetic
waves with the predetermined frequency range and reflecting another part thereof,

wherein in the electromagnetic waves incident from a side of the one end of the transmission line, a frequency component centered
on a resonant frequency of a resonator, which is formed between the pair of radio-wave half mirrors, is selectively output
from the other end of the transmission line,

wherein in order to change an electrical length between the pair of radio-wave half mirrors, at least one of space-varying
means, which varies a space between the pair of radio-wave half mirrors, and permittivity-varying means, which varies permittivity
of a dielectric material inserted between the pair of radio-wave half mirrors, is provided,

wherein the transmission line is formed of
a first waveguide which has an internal rectangular size capable of propagating the electromagnetic waves with the predetermined
frequency range from one end of the first waveguide to the other end of the first waveguide in the TE10 mode, and

a second waveguide which has an internal rectangular size capable of propagating the electromagnetic waves with the predetermined
frequency range from one end of the second waveguide to the other end of the second waveguide in the TE10 mode and is connected
to the first waveguide so as to be circumscribed around a portion of the one end of the first waveguide,

wherein one of the pair of radio-wave half mirrors is mounted on the first waveguide, and the other is mounted on the second
waveguide, and

wherein the space-varying means varies the space between the pair of radio-wave half mirrors by telescopically sliding the
first waveguide and the second waveguide in a state where the waveguides are connected.

US Pat. No. 9,538,393

MOBILE TERMINAL TEST APPARATUS AND MOBILE TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal test apparatus that outputs a predetermined test signal to a mobile terminal to test the mobile terminal,
comprising:
first display means for displaying setting items used to test the mobile terminal;
second display means for displaying specific setting items, the specific setting items being selected from among all of the
setting items; and

processing means for performing a process related to a display order of the specific setting items displayed by the second
display means, a process related to the deletion of specific setting items displayed by the second display means, or a combination
thereof, in response to an instruction from the tester; and

test execution means for performing a test of a mobile terminal based on a setting item selected by a tester among the setting
items displayed by the first display means and for performing a test of a mobile terminal based on a specific setting item
selected by the tester among the specific setting items displayed by the second display means.

US Pat. No. 9,420,481

MOBILE COMMUNICATION TERMINAL TEST SYSTEM AND MOBILE COMMUNICATION TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile communication terminal test system that transmits a test signal formed by a plurality of downlink component carriers
including a primary component carrier and a secondary component carrier to a mobile communication terminal to test the mobile
communication terminal, comprising:
a primary test device that transmits first communication data including first test data to the mobile communication terminal
using the primary component carrier of the test signal;

a secondary test device that transmits second communication data including second test data to the mobile communication terminal
using the secondary component carrier of the test signal;

first test data output means for supplying the first test data to the primary test device;
second test data output means for supplying the second test data to the secondary test device; and
test parameter setting means for setting test parameters including a frequency of each of the plurality of downlink component
carriers and a frequency of an uplink used by the mobile communication terminal to the primary test device and the secondary
test device,

wherein each of the primary test device and the secondary test device includes receiving means for receiving a transmission
signal including control information which is transmitted by the mobile communication terminal in the uplink,

the primary test device includes first communication data processing means for performing a process corresponding to control
information related to the first communication data among control information items of the control information, and

the secondary test device includes second communication data processing means for performing a process corresponding to control
information related to the second communication data among the control information items of the control information.

US Pat. No. 9,234,923

SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD

ANRITSU CORPORATION, Kan...

1. A signal processing device comprising:
signal processing means that includes a processing parameter setting unit, performs a predetermined process for an input signal
on the basis of a processing parameter set by the processing parameter setting unit, and outputs a graph display signal for
displaying a graph in which a horizontal axis is a frequency and a vertical axis is an amplitude level;

display means for receiving the graph display signal output from the signal processing means and displaying the graph on a
display screen;

a parameter data table that stores the processing parameter set;
control means for reading at least one processing parameter from the parameter data table and outputting the processing parameter
to the processing parameter setting unit; and

a touch panel that is provided so as to correspond to the display screen and includes a touch sensor which outputs positional
information associated with a touch operation,

wherein the parameter data table stores a plurality of the processing parameters with different resolutions corresponding
to each positional information item,

the control means includes a processing parameter output unit that reads the processing parameters with different resolutions
corresponding to the positional information from the parameter data table and outputs the processing parameters to the processing
parameter setting unit, if the positional information is input from the touch panel, and

the processing parameter output unit of the control means reads at least one change value as the processing parameter corresponding
to the positional information from the parameter data table and outputs the change value to the processing parameter setting
unit such that the change value is increased or decreased with respect to a currently set value in correspondence with a slide
touch direction included in the positional information.

US Pat. No. 9,627,733

MILLIMETER WAVEBAND FILTER

ANRITSU CORPORATION, Kan...

1. A millimeter waveband filter comprising:
a first waveguide which has a transmission line to allow electromagnetic waves in a predetermined frequency range of a millimeter
waveband to propagate in a TE10 mode;

a second waveguide which has a transmission line to allow the electromagnetic waves in the predetermined frequency range to
propagate in the TE10 mode and is connected to the first waveguide in a state where at least one end portion of the second
waveguide is inserted into the first waveguide;

a pair of flat electric wave half mirrors which have characteristics to transmit a part of the electromagnetic waves in the
predetermined frequency range and to reflect a part of the electromagnetic waves and are arranged to face each other at an
interval in a state where the transmission line of the first waveguide and the transmission line of the second waveguide are
blocked; and

variable interval means for relatively moving the first waveguide and the second waveguide in a longitudinal direction of
the transmission line in a state connected together to change the interval between the pair of electric wave half mirrors,

wherein frequency components centering on a resonance frequency of a resonator formed between the pair of electric wave half
mirrors are selectively transmitted, and a groove which has a length along the longitudinal direction of the transmission
line corresponding to a ¼ wavelength of electromagnetic waves to be a leakage prevention target is formed on the outside of
the second waveguide facing the inside of the first waveguide, and leakage of the electromagnetic waves from the interval
between the outside of the second waveguide and the inside of the first waveguide is prevented by the groove, wherein

the pair of electric wave half mirrors respectively have rectangular plates which have a predetermined thickness and reflect
electromagnetic waves propagating through the transmission line, and slits which are formed in central portions of the plates
along a long side direction of the plates and transmit a part of the electromagnetic waves propagating through the transmission
line,

the slits are of a ridge type in which a central portion has a height smaller than both side portions, and the thickness of
the plates and the height and width of each of both side portions and the central portion of the slits are set such that transmittance
to the electromagnetic waves propagating through the transmission line becomes flat in the predetermined frequency range,

the predetermined frequency range is 75 to 110 GHz, and
the transmittance of the electric wave half mirrors is about ?20 dB.

US Pat. No. 9,786,972

MILLIMETER WAVEBAND FILTER

Anritsu Corporation, Kan...

1. A millimeter waveband filter comprising:
a first waveguide including a transmission line with a size that is capable of transmitting electromagnetic waves in a predetermined
frequency range of a millimeter-wave band in a TE10 mode;

a second waveguide that includes a first transmission line which has a size that is greater than an outside size of the first
waveguide and is capable of transmitting the electromagnetic waves in the predetermined frequency range in the TE10 mode and
into which one end of the first waveguide is inserted, with a gap between the outside of the first waveguide and the first
transmission line, and a second transmission line which has a size less than that of the first transmission line and is formed
such that the first transmission line and the second transmission line are concentrically continuous;

a pair of radio wave half mirrors which transmit some of the electromagnetic waves in the predetermined frequency range and
reflect some of the electromagnetic waves, one of the pair of radio wave half mirrors being fixed to the transmission line
at the one end of the first waveguide, the other radio wave half mirror being fixed to a boundary between the first transmission
line and the second transmission line of the second waveguide; and

a moving device that moves the first waveguide in a length direction of the transmission line such that a gap between the
pair of radio wave half mirrors is changed, thereby selectively transmitting an electromagnetic wave with a resonance frequency
which is determined by the gap between the pair of radio wave half mirrors among the electromagnetic waves in the predetermined
frequency range, wherein

the second waveguide further includes:
a first transmission line forming body in which a rectangular hole forming the first transmission line is formed in a plate
portion with a predetermined thickness to a thickness direction so as to pass through the plate portion; and

a second transmission line forming body in which a rectangular hole forming the second transmission line is formed in a plate
portion with a predetermined thickness in a thickness direction so as to pass through the plate portion,

the first transmission line forming body and the second transmission line forming body are formed so as to be connected to
and separated from each other, with the plate portions overlapping each other such that the rectangular holes are concentrically
continuous,

a central region that includes an opening of the second transmission line, and a depressed portion, are provided in one surface
of the second transmission line forming body which is opposite to the other surface connected to the first transmission line
forming body,

a reference plane is at a height of the central region, and
the depressed portion is depressed from the reference plane and is provided in a region which is outside the central region
and includes screw hole forming positions,

screw holes, into which screws for fixing an external circuit to be connected to the second transmission line forming body
are inserted, are provided at the screw hole forming positions in the depressed portion,

the depressed portion has a depth greater than the length of a thread portion of the screw, and
a height of a region that is excluding the depressed portion and is further away from the central region than the screw hole
forming positions is equal to the height of the reference plane.

US Pat. No. 9,142,869

DIFFERENTIAL SIGNAL TRANSMISSION LINE

ANRITSU CORPORATION, Kan...

1. A differential signal transmission line (30,50) that transmits and receives differential signals to and from a pair of differential terminals of each of a plurality of
differential circuits (21,22,23,24) which are formed on the side of a pair of main lines on a substrate, comprising:
the pair of main lines (31,35,51,55) that are conductors formed on the substrate and propagate the differential signals;

start terminals (31a,35a,51a,55a) that are one ends of the main lines to or from which the differential signals are input or output;

end terminals (31m,35m,51m,55m) that are the other ends of the main lines;

termination circuits (34,38,54,58) that are connected to the end terminals;

a first intersection portion (39a,39c,59d,59b) arranged on the side of a first differential circuit (21,23) among the plurality of differential circuits and in which the conductors of the pair of main lines intersect each other,
with a first insulating portion comprising an insulating layer interposed therebetween;

a first branch line (33a,33c,53d,53b) that is provided between the first intersection portion and the start terminal on one of the pair of main lines which has
a point closest in distance to one differential terminal of the first differential circuit in a range from the first intersection
portion to the start terminal and is connected to the one differential terminal of the first differential circuit;

a second branch line (37a,37c,57d,57b) that is provided between the first intersection portion and the end terminal on the other of the pair of main lines which
has a point closest in distance to the other differential terminal of the first differential circuit in a range from the first
intersection portion to the end terminal and is connected to the other differential terminal of the first differential circuit;

a second intersection portion (39b,39d,59c,59a) arranged on the side of a second differential circuit (22,24) different from the first differential circuit among the plurality of differential circuits and in which the conductors of
the pair of main lines intersect each other, with a second insulating portion comprising an insulating layer interposed therebetween;

a third branch line (33b,33d,53c,53a) that is provided between the second intersection portion and the start terminal on one of the pair of main lines which has
a point closest in distance to one differential terminal of the second differential circuit in a range from the second intersection
portion to the start terminal and is connected to the one differential terminal of the second differential circuit; and

a fourth branch line (37b,37d,57c,57a) that is provided between the second intersection portion and the end terminal on the other of the pair of main lines which
has a point closest in distance to the other differential terminal of the second differential circuit in a range from the
second intersection portion to the end terminal and is connected to the other differential terminal of the second differential
circuit.

US Pat. No. 9,774,408

MOBILE COMMUNICATION TERMINAL TEST DEVICE AND A TEST ANAYLSIS UNIT THEREFOR

ANRITSU CORPORATION, Kan...

4. A computer-implemented method for analysing test operations performed on a mobile communication terminal, comprising:
storing test procedures, test scenarios, and configuration data in a data store, each test scenario defined by a plurality
of test procedures arranged in a plurality of execution paths, each test scenario further defined by configuration data associated
therewith, wherein said configuration data comprises configuration data for at least one configurable communication device
and mobile communication terminal configuration data;

determining a test procedure to be executed as part of a test scenario;
communicating with the mobile communication terminal according to the test procedure, executing said test procedure and determining
an outcome of said test procedure execution;

storing a test log, each entry in the test log corresponding to either a test procedure determined to be executed or an outcome
of a test procedure execution;

determining an execution path of each of a plurality of test operations in the test log corresponding to a user-selected test
scenario and comparing the execution path of each of a plurality of test operations to the plurality of execution paths of
the user-selected test;

displaying a screen comparing the execution path of each of a plurality of test operations to the plurality of execution paths
of the user-selected test;

comparing outcomes of each test procedure execution in each of the plurality of test operation in the test log;
displaying said outcome comparison on the screen; and
determining any outcomes of each test procedure in the user-selected test not present in the test log,
wherein the step of displaying a screen further comprises displaying said outcomes on the screen.

US Pat. No. 9,768,993

MULTIBAND EQUALIZER, ERROR RATE MEASUREMENT SYSTEM USING THE SAME, ERROR RATE MEASUREMENT DEVICE, AND PATH SELECTION METHOD

ANRITSU CORPORATION, Kan...

1. A multiband equalizer, comprising:
an input-side transmission circuit having one end at which an input terminal to which a signal is input is formed, and the
other end terminated by the input-side termination circuit;

an output-side transmission circuit having one end terminated by an output-side termination circuit and the other end at which
an output terminal for outputting a signal is formed;

a plurality of high-frequency components that are provided in parallel between the input-side transmission circuit and the
output-side transmission circuit and have frequency pass characteristics different from each other, each high-frequency component
including a power supply terminal to which a driving power supply signal is selectively input from an external power supply
circuit; and

a transmission path that transmits a signal transmitted through the input side transmission circuit to the output side transmission
circuit and that includes only the high-frequency component in which the driving power supply signal is input to the power
supply terminal among the plurality of high-frequency components.

US Pat. No. 9,055,462

SIGNAL GENERATION DEVICE, MOBILE COMMUNICATION TERMINAL TEST DEVICE INCLUDING THE SAME, SIGNAL GENERATION METHOD, AND MOBILE COMMUNICATION TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile communication terminal test device that includes a signal generation device in which a plurality of sub-carriers
are arranged in a frequency domain, transmits the signal generated by the signal generation device as a test signal to a mobile
communication terminal, receives a response signal to the test signal from the mobile communication terminal, and tests the
mobile communication terminal, comprising:
sub-carrier generation means for generating the plurality of sub-carriers based on a predetermined modulation system from
input data;

time domain conversion means for receiving the generated plurality of sub-carriers and converting the plurality of sub-carriers
into a signal in a time domain;

frequency characteristic storage means for storing data of frequency characteristics for at least one of amplitude-frequency
characteristics and phase-frequency characteristics of each of the sub-carriers in advance;

frequency characteristic calculation means for adding the frequency characteristics to each of the sub-carriers generated
by the sub-carrier generation means in a predetermined time unit based on the data of the frequency characteristics and outputting
the addition result;

test data output means for outputting test data, which is a source of the test signal, as the input data to the sub-carrier
generation means;

up-conversion means for converting the signal in the time domain into a predetermined radio-frequency test signal and outputting
the predetermined radio-frequency test signal to the mobile communication terminal;

down-conversion means for receiving a response signal to the test signal from the mobile communication terminal and converting
the received signal into a response signal with a predetermined frequency;

response signal demodulation means for demodulating the response signal output from the down-conversion means; and
analysis means for analyzing the demodulated response signal,
wherein the time domain conversion means receives the plurality of sub-carriers output from the frequency characteristic calculation
means and converts the sub-carriers into the signal in the time domain.

US Pat. No. 9,819,126

STATIC ELECTRICITY NEUTRALIZING DEVICE AND STATIC ELECTRICITY NEUTRALIZING METHOD

ANRITSU CORPORATION, Kan...

1. A static electricity neutralizing device that neutralizes static electricity in a charged coaxial cable which connects
a port of a tester to a device under test, the static electricity neutralizing device comprising:
a base member that is installed in the vicinity of the port of the tester; and
a flexible rod-like static electricity neutralizing contact which is erected on the base member, wherein
when the neutralizing contact is placed in contact with a central conductor and an outer conductor of a coaxial connector
of the coaxial cable, the neutralizing contact provides a short circuit between the central conductor and the outer conductor,

the base member is configured by a first base member and a second base member that are held substantially parallel to each
other at a predetermined interval,

first two insertion holes that correspond to the exterior of two adapters which are connected to the coaxial connector of
the two ports are formed in the first base member,

second two insertion holes that correspond to the exterior of the two adapters are formed in the second base member, and
the static electricity neutralizing contact is positioned on a surface of the second base member between the second two insertion
holes into which the two adapters are inserted, and the static electricity neutralizing contact is fixedly erected close to
the two adapters.

US Pat. No. 9,550,074

LASER TREATMENT DEVICE

ANRITSU CORPORATION, Kan...

1. A laser therapy apparatus comprising:
a laser source including at least one light source that outputs first laser light;
a laser irradiator that subjects the first laser light to at least one of light-guiding and beamforming to convert the first
laser light into second laser light, and radiating the second laser light to the exterior;

a second light amount detector that detects a light amount of second laser light;
a pre-use checker that performs a pre-use check at least based on a result of detection by the second light amount detector;
a pre-use check detector that determines whether a pre-use check corresponding to a current activation has been performed
or not, based on past-activation information and a result of the pre-use check by the pre-use checker; and

an alarm that reports, at the current activation, a result of determination by the pre-use check detector, wherein,
the past-activation information is information of an immediately previous activation of the current activation; and
the pre-use check detector determines whether the pre-use check has been performed or not based on information of the immediately
previous activation of the current activation.

US Pat. No. 9,984,483

MOBILE TERMINAL TESTING DEVICE AND MOBILE TERMINAL TESTING METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal testing device comprising:a display; and
at least one processor and memory configured to:
perform wireless communication standard compliance testing of a mobile terminal;
display testing result data on the display, the testing result data indicating a result of the performed testing,
wherein the displayed testing result data is displayed in the forms of a three-dimensional graph having first, second, and third dimensions, a first two-dimensional graph of the first and third dimensions, and a second two-dimensional graph of the second and third dimensions; and
set a first marker on the first two-dimensional graph, the first marker indicating a position on the first dimension, and set a second marker on the second two-dimensional graph, the second marker indicating a position on the second dimension,
wherein the first two dimensional graph illustrates the testing result data in the first and third dimensions at a position of the second dimension corresponding to the position of the second marker corresponding to the second dimension, and
wherein the second two-dimensional graph illustrates the testing result data in the second and third dimensions at a position of the first dimension corresponding to the position of the first marker corresponding to the first dimension.

US Pat. No. 9,838,144

NOISE FLOOR LEVEL REDUCTION DEVICE AND NOISE FLOOR LEVEL REDUCTION METHOD

ANRITSU CORPORATION, Kan...

1. A noise floor level reduction device installed before a signal measurement device comprising noise floor level measurement
means for measuring a noise floor level of the signal measurement device and signal level calculation means for subtracting
the noise floor level from a level of a signal from a device under test to calculate a level of a signal after subtraction,
the noise floor level reduction device comprising:
amplifying means provided between the device under test and the signal measurement device for amplifying the signal from the
device under test; and

termination means for terminating an input of the amplifying means,
wherein the termination means terminates the input of the amplifying means on condition that the noise floor level measurement
means measures the noise floor level,

the device under test outputs a transmission signal based on a time division duplex scheme as an output signal, and
the signal level calculation means subtracts the noise floor level from a level of the transmission signal to calculate a
level of the transmission signal after subtraction.

US Pat. No. 9,779,690

IMAGE DISPLAY DEVICE, TEST DEVICE USING IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY METHOD

ANRITSU CORPORATION, Kan...

1. An image display device that displays a portion of a predetermined image to be displayed in an image display area of a
display, and scrolls the predetermined image according to a detected scroll operation with respect to the predetermined image,
the image display device comprising:
at least one processor and memory configured to:
detect a scroll operation with respect to the predetermined image displayed in the image display area of the display;
specify an amount of the predetermined image displayed in the image display area to be scrolled according to the detected
scroll operation;

scroll the predetermined image according to the amount to be scrolled;
regulate the amount to be scrolled so that an end of the predetermined image does not enter the inside of the image display
area if the predetermined image is scrolled in the image display area according to the amount to be scrolled;

change a display mode of at least a portion of a peripheral area of the image display area in the display when the amount
to be scrolled is regulated;

display a scroll bar for scrolling the predetermined image together with the predetermined image on the display; and
change a display mode of a slider of the scroll bar when the amount to be scrolled is regulated by changing a degree of shading
of a display color of the slider according to a relational amount of the regulated amount to be scrolled.

US Pat. No. 9,726,573

OPTICAL FREQUENCY DOMAIN REFLECTOMETRY, OPTICAL FREQUENCY DOMAIN REFLECTOMETER, AND DEVICE FOR MEASURING POSITION OR SHAPE USING THE SAME

ANRITSU CORPORATION, Kan...

3. An optical frequency domain reflectometer comprising:
a wavelength swept light source which outputs wavelength swept light which is swept in a wavelength continuously in a predetermined
range;

split means for receiving and splitting the wavelength swept light in a first optical path;
directional optical coupling means for receiving first split light split by the split means and output to a second optical
path as measurement light, outputting the first split light to a measurement-target optical fiber having a fiber Bragg grating
with a chirped grating interval, and

receiving reflected light from the measurement-target optical fiber with respect to the measurement light;
a polarization multiplexing unit which receives second split light split by the split means and output to a third optical
path, and outputs polarization multiplexed reference light generated by multiplexing a first reference light and a second
reference light resulting from splitting the second split light into a first split reference light and a second split reference
light, and applying polarization orthogonality and a predetermined time difference between the first split reference light
and the second split reference light using a polarization controller or a half-wave plate, wherein the predetermined time
difference is shorter than a time during which a light reciprocates the fiber Bragg grating;

combine means for combining the polarization multiplexed reference light and the reflected light output from the directional
optical coupling means;

a photodetector which receives output light of the combine means and outputs a beat produced by interference of the reflected
light and the polarization multiplexed reference light as an electrical signal;

an A/D converter which converts the electrical signal to a digital signal; and
a signal processing unit which divides a time domain of the digital signal obtained by a single waveform sweep into a plurality
of periods during which a beat frequency produced by interference of the reflected light and the first reference light included
in the polarization multiplexed reference light and a beat frequency produced by interference of the reflected light and the
second reference light included in the polarization multiplexed reference light do not overlap each other, performs Fourier
transform on the digital signal, and synthesizes Fourier transform results obtained for the plurality of periods on a distance
axis to obtain a measurement result of two orthogonal polarization components of the reflected light.

US Pat. No. 9,689,752

OFDR DEVICE AND OFDR METHOD

ANRITSU CORPORATION, Kan...

1. An OFDR device that measures a strain distribution or a temperature distribution of a measured optical fiber, the device
comprising:
a light source that outputs wavelength-swept light;
a measured optical fiber that includes a fiber Bragg grating unit;
an optical splitter/combiner that inputs part of output light from the light source to the measured optical fiber and combines
reflected light from the measured optical fiber and part of output light from the light source;

an optical receiver that converts light from the optical splitter/combiner into an electrical signal;
an A/D converter that converts the electrical signal into a digital signal;
a spectrogram calculator that calculates a spectrogram by performing discrete Fourier transform on the digital signal; and
a peak wavelength detector that detects one or more peak wavelengths of the spectrogram on a wavelength axis,
wherein the fiber Bragg grating unit includes a plurality of gratings that is overlappingly formed in order to reflect a plurality
of different wavelengths,

the OFDR device further includes a measuring range non-inclusion detector that detects gratings of the plurality of gratings
of which the reflected wavelengths are not included in a predetermined measured wavelength range from the peak wavelengths
detected by the peak wavelength detector based on measured wavelength range non-inclusion detecting condition data (Ds) which
have the measured wavelength range toward the wavelength axis of the peak wavelengths, and

a strain or temperature detector that measures a strain distribution or a temperature distribution of the measured optical
fiber based on results from the measuring range non-inclusion detector and the peak wavelengths detected by the peak wavelength
detector.

US Pat. No. 9,692,430

ELECTRICAL CHARACTERISTIC ADJUSTMENT DEVICE AND ELECTRICAL CHARACTERISTIC ADJUSTMENT METHOD

ANRITSU CORPORATION, Kan...

1. An electrical characteristic adjustment device for adjusting a characteristic value of an electrical characteristic within
a target range, comprising:
a microcomputer configured to receive a signal from a device to be adjusted, which can change the electrical characteristic,
measure the signal, and acquire the characteristic value of the electrical characteristic;

an input interface for inputting data for a first minimum value and a first maximum value indicating the target range of the
characteristic value; and

a display for displaying a first mark and a second mark, the first and second marks indicating the acquired characteristic
value based on their location on an adjustment axis, the location of the first mark on the adjustment axis indicating a value
according to a first range of values based on a first scale and the location of the second mark on the adjustment axis indicating
a value according to a second range of values based on a second scale,

the microcomputer being further configured to:
control the display of the first mark on the adjustment axis according to the first range of values and the first scale; and
control the display of the second mark on the adjustment axis according to the second range of values and the second scale,
wherein

the first range of values is larger than the second range of values,
the first scale is smaller than the second scale such that the first range of values and the second range of values occupy
the same distance on the adjustment axis,

a target value is included within both the first range of values and the second range of values,
when the characteristic value is equal to the target value, the first mark and the second mark overlap each other on the adjustment
axis such that a center point of the first mark is the same as a center point of the second mark, and

the location of the first mark on the adjustment axis is independent of the location of the second mark on the adjustment
axis.

US Pat. No. 9,585,035

MOBILE TERMINAL TEST APPARATUS AND PARAMETER REPLACEMENT METHOD FOR USE IN MOBILE TERMINAL TEST APPARATUS

ANRITSU CORPORATION, Kan...

1. A mobile terminal test apparatus that, based on parameters that are set for each of multiple component carriers in a carrier
aggregation, performs a call connection to a mobile terminal and performs carrier aggregation testing, with one among the
multiple component carriers being set to be a primary component carrier and with the other component carriers being set to
be secondary component carriers, the mobile terminal test apparatus comprising:
a control unit that causes the mobile terminal to perform a handover, and that connects one component carrier, which is connected
as the secondary component carrier before the handover is performed, as the primary component carrier based on parameters
that are set for the secondary component carrier, and connects a component carrier, which is connected as the primary component
carrier before the handover is performed, as the secondary component carrier based on the parameters that are set for the
primary component carrier.

US Pat. No. 9,871,279

MILLIMETER WAVEBAND FILTER AND METHOD OF VARYING RESONANT FREQUENCY THEREOF

ANRITSU CORPORATION, Kan...

1. A millimeter wave band filter comprising:
a transmission line that is formed by a plurality of waveguides and into which electromagnetic waves with a predetermined
frequency range of a millimeter wave band are incident and which propagates the corresponding incident electromagnetic waves
from one end to the other end in a TE10 mode; and

a pair of radio-wave half mirrors that are disposed opposite each other with a space interposed therebetween so as to block
the inside of the transmission line and have planar shapes and a characteristic of transmitting a part of the electromagnetic
waves with the predetermined frequency range and reflecting another part thereof,

wherein in the electromagnetic waves incident from a side of the one end of the transmission line, a frequency component centered
on a resonant frequency of a resonator, which is formed between the pair of radio-wave half mirrors, is selectively output
from the other end of the transmission line,

wherein in order to change an electrical length between the pair of radio-wave half mirrors, at least one of space-varying
means, which varies a space between the pair of radio-wave half mirrors, and permittivity-varying means, which varies permittivity
of a dielectric material inserted between the pair of radio-wave half mirrors, is provided,

wherein the transmission line is formed of
a first waveguide which has an internal rectangular size capable of propagating the electromagnetic waves with the predetermined
frequency range from one end of the first waveguide to the other end of the first waveguide in the TE10 mode,

a second waveguide which has an internal rectangular size and a shape that are the same as the internal rectangular size and
shape of the first waveguide and is disposed on an axis that is the same as that of the first waveguide in a state where one
end of the second waveguide is opposed to one end of the first waveguide, and

a third waveguide which has an internal rectangular size capable of propagating the electromagnetic waves with the predetermined
frequency range from the one end of the third waveguide to the other end of the third waveguide in the TE10 mode and circumscribing
at least either the first waveguide or second waveguide and holds at least either the first waveguide or second waveguide
so as to inscribe at least either the one end of the first waveguide or the one end of the second waveguide,

wherein one of the pair of radio-wave half mirrors is mounted on the first waveguide, and the other is mounted on the second
waveguide, and

wherein the space-varying means slides at least one of the first waveguide and the second waveguide in a state where the at
least one is held in sliding contact in the third waveguide.

US Pat. No. 10,142,866

MOBILE TERMINAL TESTING APPARATUS AND LOCAL OSCILLATION FREQUENCY DETECTION METHOD FOR MOBILE TERMINAL TESTING APPARATUS

ANRITSU CORPORATION, Kan...

1. A mobile terminal testing apparatus that, based on a parameter that is configured for each of multiple component carriers in carrier aggregation, sets one of the multiple component carriers to be a primary component carrier, sets the other component carriers to be a secondary component carrier, makes a call connection to a mobile terminal, and thus performs testing of the carrier aggregation, the mobile terminal testing apparatus comprising a processor configured to:make the call connection between the mobile terminal testing apparatus itself and the mobile terminal and control a condition for transmitting a transmission signal of the mobile terminal;
receive from the mobile terminal a signal which is set to be a prescribed transmission condition and detect a local oscillation frequency of the mobile terminal from the received signal;
wherein, in a case where testing of uplink carrier aggregation that is a frequency arrangement in which a primary component carrier and a secondary component carrier in uplink are contiguous within a frequency band is performed, the processor performs configuration for the mobile terminal in such a manner that the signal which is transmitted by the mobile terminal is set to be the prescribed transmission condition, and the local oscillation frequency is detected from the frequency band in which the primary component carrier and the secondary component carrier in the uplink are contiguous, using the signal that is set to be the prescribed transmission condition, which is received from the mobile terminal; and
wherein the processor is further configured to perform configuration for the mobile terminal in such a manner that the mobile terminal is caused to transmit user data and thus a state is provided where the user data is caused to have a deviation in a transmission spectrum, and
to detect a transmission signal for the user data transmitted by the mobile terminal and an image signal for the transmission signal, which are in the frequency band in which the primary component carrier and the secondary component carrier in the uplink are contiguous, and set a maximum-power frequency point that is midway between the transmission signal and the image signal, to be the local oscillation frequency.

US Pat. No. 10,142,037

MEASUREMENT DEVICE AND MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

3. A measurement device, comprising:a plurality of measurement means that are respectively connected to a plurality of devices to be measured capable of using a plurality of communication frequency bands, and perform measurements of at least one of transmission characteristics and reception characteristics of the plurality of devices to be measured in parallel using different communication frequency bands,
wherein the communication frequency bands correspond to different channels and/or different communication protocols,
wherein each of the plurality of measurement means comprises:
signal input means for receiving a signal for measuring the transmission characteristics with a frequency in a communication frequency band from each of the plurality of measurement devices, respectively; and
signal output means for outputting a signal for measuring the reception characteristics with a frequency in a communication frequency band to each of the plurality of devices to be measured, respectively,
wherein the measurement device further comprises:
band information storage means for storing information on the communication frequency bands handled by the plurality of signal input means and the plurality of signal output means;
band setting means for setting a communication frequency band handled by the plurality of signal input means and the plurality of signal output means; and
band management means for executing a process of storing information on a communication frequency band handled by the plurality of signal input means and the plurality of signal output means in the band information storage means, and clearing the information on the used communication frequency band from the band information storage means when the plurality of signal input means and the plurality of signal output means end measurement,
wherein the band setting means outputs a use request for use of the signal input means or the signal output means, and a communication frequency band desired to be used, to the band management means,
wherein the band management means determines permission or refusal in response to the use request on the basis of the information on the communication frequency band stored in the band information storage means with respect to the band setting means, and
wherein in the plurality of measurement means:
the band information storage means is included in the plurality of measurement means, and includes a plurality of used band information storage means for storing information on a communication frequency band handled by the signal input means and the signal output means of the own measurement means; and
the band setting means is included in the plurality of measurement means, and includes used band setting means for setting the communication frequency band handled by the signal input means and the signal output means of the own measurement means on the basis of information on the communication frequency band stored in the used band information storage means of another measurement means.

US Pat. No. 10,064,075

MOBILE COMMUNICATION TERMINAL TEST DEVICE AND MOBILE COMMUNICATION TERMINAL TEST METHOD

ANRITSU CORPORATION, Kan...

1. A mobile communication terminal test device that communicates with a mobile communication terminal to perform a test operation, comprising:a display unit;
a test engine unit that determines, during performance of a test operation, a test procedure to be executed as part of the test operation and communicates said test procedure to a test execution unit;
a test execution unit that executes said test procedure and returns an outcome of said test procedure execution to the test engine unit, whereby the outcome is used by the test engine unit in determining a subsequent test procedure to be executed;
and a display control unit that produces a hierarchical trace of executed test procedures arranged by nested execution level, whereby a child test procedure determined by the test engine unit to be executed as part of executing a parent test procedure is indicated by the display control unit at a lower nested execution level than the parent test procedure,
wherein the display control unit displays a screen indicating the hierarchical trace of executed test procedures and their outcomes on the display unit,
wherein the display control unit displays only executed and executing test procedures in the hierarchical trace.

US Pat. No. 10,044,088

TRANSMISSION-LINE CONVERSION STRUCTURE FOR MILLIMETER-WAVE BAND

ANRITSU CORPORATION, Kan...

1. A transmission-line conversion structure for a millimeter-wave band that connects a microstrip line, which includes a main conductor formed on one surface of a dielectric substrate and a ground conductor formed on the other surface thereof and allows electromagnetic waves of a millimeter-wave band to propagate in a longitudinal direction of the main conductor, with a waveguide which allows the electromagnetic waves of the millimeter-wave band to propagate,wherein the transmission-line conversion structure has a waveguide structure in which a transmission line having a predetermined length is formed so as to be surrounded by metal walls, the transmission line is filled with a dielectric material having a relative permittivity of greater than 1, one end surface of the transmission line is bonded to an end surface of the dielectric substrate of the microstrip line, and the other end surface of the transmission line is bonded to an aperture of the waveguide,
wherein the transmission-line conversion structure is formed between the microstrip line and one end of the transmission line and between the other end of the transmission line and one end of the waveguide so as to allow the electromagnetic waves of the millimeter-wave band to propagate, and
wherein a size of the transmission line filled with the dielectric material and relative permittivity of the dielectric material filling the transmission line is set such that a length of the transmission line filled with the dielectric material is a quarter of a guide wavelength of a desired propagation frequency and an impedance Zx of the transmission line filled with the dielectric material with respect to an impedance Z1 of the microstrip line and an impedance Z2 of the waveguide is represented by Zx=?(Z1×Z2).

US Pat. No. 9,590,750

FADING SIMULATOR AND METHOD OF PRODUCING FADING SIGNAL

Anritsu Corporation, Ats...

5. A fading-signal producing method for conducting a fading test on a mobile communications terminal configured to receive
a plurality of radio signals containing a plurality of baseband signals, respectively, the method comprising:
a reception step of receiving the radio signals, converting frequencies of the radio signals, and extracting the baseband
signals from the radio signals, individually;

a reproduction processing step of individually performing reproduction processing on the baseband signals extracted in the
reception step to produce a plurality of new baseband signals;

a fading arithmetic step of individually performing fading processing on the new baseband signals produced in the reproduction
processing step to produce a plurality of fading signals; and

a transmission step of individually converting the fading signals produced in the fading arithmetic step into radio signals,
and outputting the radio signals as test signals to the mobile communications terminal.

US Pat. No. 9,998,240

ELECTRIC FIELD INTENSITY DISTRIBUTION MEASUREMENT DEVICE AND ELECTRIC FIELD INTENSITY DISTRIBUTION MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. An electric field intensity distribution measurement device that measures a radio signal transmitted from an antenna under measurement in a near field and calculates an electric field intensity distribution in a far field, the electric field intensity distribution measurement device comprising:a measurement antenna that receives the radio signal as a measurement signal at a plurality of scanning points included in a predetermined scanning range;
a reference antenna that receives the radio signal as a reference signal;
measurement frequency conversion means for frequency converting the measurement signal received by the measurement antenna;
reference frequency conversion means for frequency converting the reference signal received by the reference antenna;
a phase difference and amplitude calculation unit that calculates a phase difference between a phase of a digitized version of the frequency-converted measurement signal and a phase of a digitized version of the frequency-converted reference signal with respect to each scanning point, and calculates an amplitude of the digitized version of the frequency-converted measurement signal; and
a far-field electric field intensity distribution calculation unit that calculates the electric field intensity distribution in the far field of the antenna under measurement, using information on the phase difference and the amplitude calculated by the phase difference and amplitude calculation unit.

US Pat. No. 9,841,896

MOBILE TERMINAL TEST DEVICE

ANRITSU CORPORATION, Kan...

1. A mobile terminal test device comprising:
a measurement unit that transmits and receives signals to and from a mobile terminal to be tested and measures a designated
measurement item;

a display unit;
an operating unit that is used to designate the measurement item to be measured by the measurement unit; and
a control unit that instructs the measurement unit to measure the measurement item designated by the operating unit and displays
measurement results of the designated measurement item on the display unit,

wherein the operating unit includes a touch-panel-type operating unit that is overlapped on a screen of the display unit,
and

the control unit includes:
measurement item list display means for setting a plurality of touch operation areas allocated to a plurality of measurement
items for the mobile terminal to be tested, which can be measured by the measurement unit, in the touch-panel-type operating
unit and displaying a list of sections indicating the outer edges of the plurality of touch operation areas and measurement
item names for the sections on the display unit;

validation/invalidation designation means for designating whether to validate or invalidate the execution of the measurement
item whose name is displayed;

switching button display means for displaying, in the section of the touch operation area corresponding to the measurement
item which has been invalidated by the validation/invalidation designation means, a switching button for switching the designated
state of the measurement item from an invalid state to a valid state to inform that the measurement item has been invalidated;
and

in-section measurement result display means for displaying the measurement results of the measurement item which has been
validated by the validation/invalidation designation means and the measurement item whose designated state has been changed
from the invalid state to the valid state by a touch operation for the switching button displayed by the switching button
display means in the sections of the touch operation areas corresponding to the measurement items to inform that the measurement
item has been validated.

US Pat. No. 9,832,047

PHASE NOISE OPTIMIZATION DEVICE AND PHASE NOISE OPTIMIZATION METHOD

ANRITSU CORPORATION, Kan...

1. A phase noise optimization device comprising:
a phase-locked loop (PLL) circuit including:
a reference signal generation unit that generates a reference signal,
a voltage controlled oscillating unit that controls a frequency of an output signal in accordance with a voltage of an input
signal,

a phase frequency detector that outputs an error signal according to a frequency difference and a phase difference between
the output signal from the voltage controlled oscillating unit and the reference signal, and

a loop filter provided with a plurality of low-pass filters having different cutoff frequencies and a filter selection unit
that selects one low-pass filter from the plurality of low-pass filters, the loop filter allowing passage of a low-frequency
component of the error signal through a low-pass filter selected by the filter selection unit to input the low-frequency component
to the voltage controlled oscillating unit;

an analog-to-digital (A/D) converter that converts the output signal into time domain data as digital data; and
a phase noise calculation unit that calculates phase noise from the time domain data, and generates a plurality of phase noise
data of a frequency domain,

wherein the phase noise calculation unit includes:
a phase noise data generation unit that generates each of at least two types of phase noise data by sequentially switching
the plurality of low-pass filters,

a comparison unit that compares the at least two types of phase noise data generated by the phase noise data generation unit,
and

a phase noise optimization unit that generates optimized phase noise data based on a comparison result of the comparison unit.

US Pat. No. 9,775,062

MOBILE TERMINAL TESTING APPARATUS AND SCENARIO INFORMATION SETTING METHOD FOR USE IN MOBILE TERMINAL TESTING APPARATUS

ANRITSU CORPORATION, Kan...

5. A scenario information setting method for use in a mobile terminal testing apparatus that includes a pseudo-base station
unit that tests a mobile communication terminal and that simulates a mobile-communication base station, the scenario information
setting method comprising:
displaying an image indicating a position on a frequency axis, of a selection frequency band that is selected as a frequency
band which is used by the pseudo-base station unit when information on a multi-frequency band indicator (MFBI) is set; and

displaying an image indicating a position on the frequency axis, of an available frequency band which is able to be set as
the MFBI with which the selection frequency band is overlapping, in such a manner that a positional relationship on the frequency
axis between the image indicating the position on the frequency axis, of the available frequency band and the image indicating
the position on the frequency axis, of the selection frequency band is identifiable.

US Pat. No. 10,433,366

MEASUREMENT DEVICE AND MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. A measurement device comprising:frame reception circuit configured to receive a frame transmitted from a device under measurement, wherein the device under measurement transmits a frame generated using a predetermined modulation scheme and a predetermined coding rate to a transmission destination, and when the device under measurement does not receive a notification signal indicating that the frame has been received by the transmission destination, the device under measurement retransmits a frame in which at least one of the modulation scheme and the coding rate has been changed so that a probability of delivery to the transmission destination is increased;
determination circuit configured to determine whether or not the modulation scheme and the coding rate of the frame received by the frame reception circuit satisfy a predetermined condition;
notification signal processing circuit configured to transmit the notification signal to the device under measurement when the determination circuit determines that the predetermined condition is satisfied and not transmitting the notification signal when the determination circuit determines that the predetermined condition is not satisfied; and
measurement circuit configured to measure data included in the frame transmitted from the device under measurement with the modulation scheme and the coding rate, the frame being determined to satisfy the predetermined condition.

US Pat. No. 9,973,948

MOBILE TERMINAL TESTING APPARATUS AND CELL USE METHOD FOR USE IN THE SAME

ANRITSU CORPORATION, Kan...

1. A mobile terminal testing apparatus that simulates a base station for mobile communication in order to test a mobile communication terminal, the apparatus comprising:a cell state determination unit that determines in-use states of multiple cells which perform communication with the mobile communication terminal;
a cell state change processing unit that changes states of the multiple cells and notifies the cell state determination unit of the states of the multiple cells;
a scenario processing unit that:
detects a number of cells that need to be added for a subsequent communication with the mobile communication terminal, and a number of cells that are available for deletion, based on a message that is transmitted and received between the mobile terminal testing apparatus and the mobile communication terminal,
causes the cell state change processing unit to initialize a cell that is available for deletion, and
sets the initialized cell to instead be available for re-use such that the initialized cell set to be available for re-use is re-used in the subsequent communication.

US Pat. No. 9,832,045

DIGITAL SIGNAL OFFSET ADJUSTMENT DEVICE AND METHOD AND PULSE PATTERN GENERATION APPARATUS

ANRITSU CORPORATION, Kan...

1. A digital signal offset adjustment device comprising:
an input terminal;
an output terminal;
a capacitor that is provided between the input terminal and the output terminal and transmits an AC component of a digital
signal input to the input terminal to the output terminal;

a first coil that has one end connected to the input terminal and passes a DC component and a low-frequency component of the
digital signal input to the input terminal;

a second coil that has one end connected to the output terminal;
an offset voltage generator that generates an offset voltage which is an arbitrary DC voltage;
a synthetic circuit that synthesizes the offset voltage output from the offset voltage generator with the DC component and
the low-frequency component of the digital signal output from the other end of the first coil and supplies the synthesized
signal to the other end of the second coil;

a resistor that is used for output matching and has one end connected to the other end of the second coil;
switching means that has one end connected to the other end of the resistor and the other end connected to the synthetic circuit
and connects or disconnects the synthetic circuit to or from the other end of the resistor;

a potential difference detection unit that detects a potential difference between both ends of the resistor;
a comparison circuit that compares a voltage value of a detection signal from the potential difference detection unit with
a predetermined threshold voltage and outputs an overcurrent detection signal when the voltage value of the detection signal
exceeds the threshold voltage; and

a control unit that receives the overcurrent detection signal from the comparison circuit and turns off the switching means.

US Pat. No. 9,793,588

WAVEGUIDE SWITCH

ANRITSU CORPORATION, Kan...

1. A waveguide switch, comprising:
a base portion;
a first fixing waveguide block which is fixed to the base portion and in which a plurality of transmission lines surrounded
by metal walls is formed to penetrate to a first end surface;

a second fixing waveguide block which is fixed to the base portion and has a second end surface parallel to the first end
surface of the first fixing waveguide block, and in which a transmission line surrounded by metal walls is formed to penetrate
from the second end surface; and

a movable waveguide block which includes a third end surface which is parallel to and faces the first end surface of the first
fixing waveguide block at a predetermined interval from the first end surface, a fourth end surface which is parallel to and
faces the second end surface of the second fixing waveguide block at a predetermined interval from the second end surface,
and a plurality of transmission lines surrounded by metal walls which are formed to penetrate from the third end surface to
the fourth end surface, and which is supported by the base portion in a state where the movable waveguide block can slide
in parallel to the first end surface of the first fixing waveguide block and the second end surface of the second fixing waveguide
block due to a drive device,

wherein grooves having a depth equivalent to ¼ of a guide wavelength of a leakage prevention object frequency are provided
to prevent leakage of electromagnetic waves from a gap between the blocks at a position of a portion which surrounds each
of openings of the plurality of transmission lines of the first fixing waveguide block on the first end surface side of the
first fixing waveguide block, a position of a portion which surrounds an opening of the waveguide of the second fixing waveguide
block on the second end surface side of the second fixing waveguide block, and a position of a portion which surrounds each
of openings of the plurality of waveguides of the movable waveguide block on the third end surface side and the fourth end
surface side of the movable waveguide block.

US Pat. No. 10,075,249

MASSIVE-MIMO ANTENNA MEASUREMENT DEVICE AND METHOD OF MEASURING DIRECTIVITY THEREOF

ANRITSU CORPORATION, Kan...

1. A massive-MIMO (multiple-input multiple-output) antenna measurement device comprising:a test antenna support portion that supports a test antenna, using a massive-MIMO antenna as the test antenna;
a probe antenna for receiving electromagnetic waves which are output from the test antenna;
a probe scanning mechanism for moving the probe antenna within a predetermined measurement plane of a near field region of the test antenna;
a signal generator that assigns a measuring signal to the test antenna;
an amplitude and phase detector that detects an amplitude and a phase from a received signal of the probe antenna; and
a measurement control unit that controls the probe scanning mechanism, receives an output of the amplitude and phase detector while scanning a position of the probe antenna within the measurement plane, and obtains a far field directivity of the test antenna,
wherein the test antenna support portion is configured such that a direction in which an electromagnetic wave radiation plane of the test antenna directly faces the measurement plane is set to a reference direction, and that a direction of the test antenna is capable of being changed from the reference direction, and
antenna direction change means for controlling the test antenna support portion to change the direction of the test antenna is included so that a direction of a beam which is radiated by the test antenna is directed toward a center of the measurement plane.

US Pat. No. 10,306,493

MEASUREMENT DEVICE AND MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. A measurement device including measurement condition setting means for setting measurement conditions of a device under test that performs communication on the basis of a communication standard, and measurement means for performing measurement of the device under test on the basis of the measurement conditions and outputting a result of the measurement, the measurement device comprising:capability information acquisition means for acquiring, from the device under test, capability information indicating capability of the device under test defined in the communication standard for each item determined in the communication standard; and
capability excess information notification means for notifying of capability excess information indicating that the measurement condition regarding the item among the measurement conditions exceeds capability determined for each item in advance on condition that the measurement condition regarding the item among the measurement conditions has been set to exceed the capability determined for each item in advance.

US Pat. No. 10,067,665

OPTICAL TIME DOMAIN REFLECTOMETER AND DISPLAY METHOD OF OPTICAL TIME DOMAIN REFLECTOMETER

ANRITSU CORPORATION, Kan...

1. An optical time domain reflectometer, comprising:a measurement unit that makes a light pulse be incident on an optical fiber under test and receives return light that returns due to reflection or scattering of the light pulse in the optical fiber under test;
an event detection unit that detects events where an intensity of the return light changes;
a display unit that displays a plurality of icons corresponding to the events in an event display region and that displays information of an event, which is indicated by an icon located in a specific region of the event display region, in an information display region;
an operation detection unit that detects an amount of swipe operation in the event display region; and
an event-of-interest changing unit that scrolls icons displayed in the event display region according to the amount of swipe operation, which has been detected by the operation detection unit, and changes the display of the information display region to information corresponding to the event indicated by the icon located in the specific region.

US Pat. No. 10,341,550

END FACE INSPECTION APPARATUS AND FOCUSED IMAGE DATA ACQUISITION METHOD

ANRITSU CORPORATION, Kan...

1. An end face inspection apparatus including an optical system which forms an image of an end face of a held test object on an image acquisition unit, and inspecting the end face of the test object by using acquired image data, the apparatus comprising:focusing degree changing means for changing a distance between the end face of the test object and a focal position of the optical system; and
a control unit that acquires a series of image data which is output from the image acquisition unit at a preset time interval while the distance between the end face of the test object and the focal position of the optical system is changed by the focusing degree changing means, determines whether or not each piece of the image data is focused, and selects focused image data as image data for end face inspection.

US Pat. No. 10,302,735

WIRELESS TERMINAL ANTENNA DIRECTIONAL CHARACTERISTIC MEASUREMENT SYSTEM AND WIRELESS TERMINAL ANTENNA DIRECTIONAL CHARACTERISTIC MEASUREMENT METHOD

ANRITSU CORPORATION, Kan...

1. A wireless terminal antenna directional characteristic measurement system comprising:a measurement antenna having a known directional characteristic, which is fixed at a predetermined position in a measurement space in which entrance of a radio wave from the outside and internal reflection of the radio wave are suppressed;
a terminal holding rotation mechanism that holds, using a point spaced from a phase center of the measurement antenna by a predetermined distance as a standard point, a wireless terminal that is a measurement target in a vicinity of the standard point, and rotates the held wireless terminal centering around the standard point within a region where a distance condition of far field measurement is satisfied from the measurement antenna, in the measurement space;
a radio wave intensity measurement unit that measures a field intensity or power of a radio wave received by the measurement antenna with respect to a radio wave output from a terminal antenna in the wireless terminal held by the terminal holding rotation mechanism;
a directional characteristic acquisition unit that rotates the wireless terminal from a standard position by controlling the terminal holding rotation mechanism and acquires a virtual directional characteristic of the terminal antenna from a measurement value obtained by the radio wave intensity measurement unit at each rotation angle;
an antenna position input unit through which the position of the terminal antenna in a case where the wireless terminal is disposed in the standard position, in the measurement space, is input;
an error information output unit that outputs a reception angle error at each rotation angle of the wireless terminal indicating a deviation between a direction of the standard point and a direction of the terminal antenna from the phase center of the measurement antenna, a propagation loss error in a free space at each rotation angle of the wireless terminal, which occurs due to a difference between a distance to the standard point from the phase center of the measurement antenna and a distance to the terminal antenna, and a gain error of the measurement antenna at each rotation angle of the wireless terminal, which is determined by the reception angle error and the directional characteristic of the measurement antenna, on the basis of the input position of the terminal antenna; and
a correction unit that corrects the virtual directional characteristic of the terminal antenna using the reception angle error, the propagation loss error, and the gain error at each rotation angle of the wireless terminal output from the error information output unit to calculate a directional characteristic in a case where it is assumed that the terminal antenna is rotated at the position of the standard point.

US Pat. No. 10,250,342

SYSTEM FOR MEASURING RECEPTION PERFORMANCE OF WIRELESS TERMINAL AND METHOD OF MEASUREMENT

ANRITSU CORPORATION, Kan...

1. A wireless terminal reception performance measurement system comprising;a measurement antenna having a known directional characteristic, which is fixed at a predetermined position in a measuring space in which entrance of a radio wave from outside and internal reflection of the radio wave are suppressed;
a terminal holding rotation mechanism that, within the measuring space, uses a point spaced from a phase center of the measurement antenna by a predetermined distance as a standard point, holds a wireless terminal that is a measurement target, in a vicinity of the standard point, and rotates the held wireless terminal centering around the standard point within a region where a distance condition of far field measurement is satisfied from the measurement antenna;
a transmission unit that supplies a measurement signal to the measurement antenna;
a response monitoring unit that monitors a response to the measurement signal received through a terminal antenna by the wireless terminal which is held in the terminal holding rotation mechanism;
a reception performance acquisition unit that rotates the wireless terminal from a standard position by controlling the terminal holding rotation mechanism and acquires a reception performance of the terminal holding rotation mechanism from a response attained at each rotation angle in the response monitoring unit and from a power of the measurement signal input to the terminal antenna of the wireless terminal;
an antenna position input unit through which a position of the terminal antenna in a case where the wireless terminal is disposed in the standard position in the measuring space, is input;
an error information output unit that outputs an angle error at each rotation angle of the wireless terminal, which indicates a deviation between a direction of the standard point and a direction of the terminal antenna, when viewed from the phase center of the measurement antenna, a propagation loss error in a free space at each rotation angle of the wireless terminal, which occurs due to a difference between a distance from the phase center of the measurement antenna to the standard point and a distance to the terminal antenna, and a gain error of the measurement antenna at each rotation angle of the wireless terminal, which is determined by the angle error and the directional characteristic of the measurement antenna, based on the input position of the terminal antenna; and
a correction unit that corrects a power of the measurement signal that is supplied from the transmission unit to the measurement antenna according to the propagation loss error and the gain error that are output from the error information output unit, when the reception performance acquisition unit obtains the reception performance of the wireless terminal, and along with this, corrects the reception performance for the rotation angle acquired by the measurement signal having the corrected power, with the angle error, and obtains the reception performance in a case where it is assumed that the terminal antenna is rotated at a position of the standard point.

US Pat. No. 10,249,928

DIVIDER AND SIGNAL GENERATION SYSTEM USING THE SAME

ANRITSU CORPORATION, Kan...

1. A divider comprising:an input terminal;
a plurality of output terminals;
a divide unit that divides a high frequency signal input to the input terminal and outputs the divided signals; and
a plurality of reflected wave blocking units that are respectively connected to a plurality of divide unit outputs and are configured to attenuate reflected waves reflected outside of the plurality of output terminals, each of the reflected wave blocking units being configured to attenuate the reflected waves by 3 dB-10 dB,
wherein the reflected waves are components of the input high frequency signal or the divided signals resulting from defective terminal contacts or improper impedance matching,
wherein the divide unit includes the plurality of divide unit outputs and outputs the divided signals from the plurality of divide unit outputs, and
wherein outputs from the plurality of reflected wave blocking units are output from the plurality of output terminals.

US Pat. No. 10,234,483

SAMPLING CIRCUIT, SAMPLING METHOD, SAMPLING OSCILLOSCOPE, AND WAVEFORM DISPLAY METHOD

ANRITSU CORPORATION, Kan...

1. A sampling circuit, comprising:a trigger generation circuit including a frequency synthesizer that outputs a periodic signal r(t) at a frequency detuned by a predetermined frequency ?f from a frequency of 1/N of a frequency of a reference clock signal f0 synchronized with a signal ws to be measured including a repetitive signal, wherein N is a positive integer, and a sampler driving circuit that outputs a trigger signal CLK for sampling that is a time base from the periodic signal r(t);
a first sampler circuit that samples the signal ws to be measured at a timing of the trigger signal CLK; and
an error detection circuit including a second sampler circuit that samples an I(t) signal according to the reference clock signal, or the periodic signal r(t) at a timing of the trigger signal CLK, and a correction value calculation circuit that calculates a correction value ?t(n) of the time base based on sampling data from the second sampler circuit and a set value t(n) of a sampling time.

US Pat. No. 10,171,190

DEVICE AND METHOD FOR TESTING MIMO SCHEME SYSTEM

ANRITSU CORPORATION, Kan...

1. A device for testing a multi input multi output (“MIMO”) scheme system adopting a multicarrier modulation scheme using K carriers in communication with one mobile terminal,a MIMO scheme having the number of transmitting antennas N and the number of receiving antennas M, and a beam forming process scheme for setting radiation beam characteristics based on transmitting antennas having the number of antennas N, in which N×M channels and
a pseudo-propagation channel having U paths in each of the channels are assumed between the transmitting antennas and the receiving antennas, and signals received by the M receiving antennas through the propagation channel are generated to be given to a test object, the device comprising:
a layer frequency domain signal generation unit that generates R×K series of modulation signals in a frequency domain for each of the K carriers with the input of R layers' worth of data signal sequences to be transmitted to the test object;
a window function operation unit that performs a convolution operation of frequency characteristics of a window function in a time domain with the input of the R×K series of modulation signals, output by the layer frequency domain signal generation unit, as a process equivalent to signal excision based on multiplication of the window function in the time domain;
a fading setting unit that obtains propagation channel characteristics of all paths assumed between the transmitting antennas and the receiving antennas;
a beam forming equivalence operation unit that performs an operation process equivalent to the beam forming process for setting the radiation beam characteristics based on the transmitting antennas having the number of antennas N to desired characteristics, with the input of the N×M×U paths' worth of propagation channel characteristics obtained in the fading setting unit;
a Fourier transform unit that performs Fourier transform taking account of a delay for each path with the input of the propagation channel characteristics of all paths obtained by the beam forming equivalence operation unit, and obtains propagation channel characteristics in the frequency domain;
an operation unit that obtains spectrum information of a signal to be received in each of the receiving antennas by multiplications of the propagation channel characteristics in the frequency domain obtained by the Fourier transform unit and operation results of the window function operation unit;
a time domain signal generation unit that performs inverse Fourier transform processes with the input of the operation results of the operation unit, and generates signals in the time domain to be received by the receiving antennas; and
a shift addition unit that shifts and adds the signals in the time domain generated by the time domain signal generation unit by a length of the window function in the time domain, and generates consecutive signals to be received by the receiving antennas.

US Pat. No. 10,429,424

WIRELESS TERMINAL MEASUREMENT APPARATUS

ANRITSU CORPORATION, Kan...

1. A wireless terminal measurement apparatus comprising:a measurement antenna which is fixed at a predetermined position in a measurement space in which entrance of a radio wave from the outside and internal reflection of the radio wave are suppressed; and
a terminal holding rotation mechanism that includes a terminal holding section that holds, using a position that is spaced away from the measurement antenna by a predetermined distance as a standard point in the measurement space, a wireless terminal that is a measurement target on one surface side of a bottom plate of a predetermined area in a state where a terminal antenna of the wireless terminal is positioned at the standard point, and a rotation mechanism that rotates the terminal holding section around the standard point,
wherein a characteristic of the wireless terminal is obtained by the wireless terminal measurement apparatus performing transmission and reception of a radio wave between the measurement antenna and the wireless terminal while changing a posture of the wireless terminal with respect to the measurement antenna, and
wherein a distance from the standard point to the one surface of the bottom plate of the terminal holding section is set so that a reflectivity of a reflection wave that is output from one of the measurement antenna and the wireless terminal, is reflected from the one surface of the bottom plate of the terminal holding section, and is input to the other one thereof is equal to or smaller than a value of a predetermined allowable limit.

US Pat. No. 10,432,282

DEVICE AND METHOD FOR TESTING MIMO SCHEME SYSTEM

ANRITSU CORPORATION, Kan...

1. A device for testing a multi input multi output (“MIMO”) scheme system adopting a multicarrier modulation scheme using K carriers, a MIMO scheme using S transmitting antennas and U receiving antennas, and a beam forming process scheme for setting radiation beam characteristics based on S transmitting antennas, in which receiving signal received by the U receiving antennas through a propagation environment including N scatters transmitted from the S transmitting antennas is generated and the generated receiving signal is given to a test object, the device comprising:a layer frequency domain signal generation circuit that generates R×K series of modulation signals in a frequency domain for each of the K carriers with an input of R layers' worth of data signal sequences to be transmitted to the test object;
a first propagation channel arithmetic operation circuit that obtains characteristics of a propagation channel taking account of beam forming characteristics, by multiplications of S×R series of beam forming characteristics, whose size is specified by the number of transmitting antennas and the number of layers, and characteristics simulating a propagation channel through which a signal transmitted from the transmitting antenna is output as M rays per scatter according to the characteristics of the transmitting antenna and arrives at the corresponding scatter;
a second propagation channel arithmetic operation circuit that obtains characteristics of a propagation channel taking account of a movement of the test object by multiplications of an arithmetic operation result of the first propagation channel arithmetic operation circuit and phase characteristics for giving a Doppler frequency shift due to the movement of the receiving antenna and the test object;
a third propagation channel arithmetic operation circuit that obtains characteristics of a propagation channel taking account of receiving characteristics of the receiving antennas by multiplications of arithmetic operation results of the second propagation channel arithmetic operation circuit and receiving antenna characteristics indicating the receiving characteristics of the receiving antenna;
a Fourier transform circuit that groups the rays into one unit that may be regarded as having a common Doppler frequency shift for each of the receiving antennas among arithmetic operation results of the third propagation channel arithmetic operation circuit and performs Fourier transform processes on characteristics of propagation channels of L units with different Doppler frequencies to obtain characteristics of propagation channel in the frequency domain at every carrier frequency;
a propagation signal arithmetic operation circuit that generates U×L series of propagation signals per carrier in the frequency domain via a pseudo propagation channel from the plurality of transmitting antennas to the plurality of receiving antennas by multiplications of the arithmetic operation result of the Fourier transform circuit and the modulation signal of the R×K series generated by the layer frequency domain signal generation circuit;
a window function arithmetic operation circuit that, as a process in the frequency domain corresponding to the signal extraction by multiplications of a window function rotating at a Doppler frequency corresponding to each series, performs an extraction process of propagation signals of U×L series per carrier, by performing a convolution arithmetic operation of the frequency characteristic of the window function with the propagation signal of the U×L series per carrier obtained by the propagation signal arithmetic operation circuit;
a path signal addition circuit that generates U series propagation signals per carrier by performing an addition process of L units of signals for each of the receiving antennas for the arithmetic operation results of the window function arithmetic operation circuit;
a time domain signal generation circuit that generates signals in the time domain to be received by the receiving antennas by performing inverse Fourier transform processes with the input of the arithmetic operation results of the path signal addition circuit; and
a shift addition circuit that generates consecutive signals to be received by the receiving antennas by shifting as much as a length of the window function and adding the signals in the time domain generated by the time domain signal generation circuit.

US Pat. No. 10,382,076

ANTENNA DEVICE AND MEASUREMENT METHOD

Anritsu Corporation, Ats...

1. An antenna device used for evaluating a transmission characteristic or a reception characteristic of equipment under test (EUT) having an array antenna that comprises a plurality of antenna elements arranged in a plane at predetermined intervals, the antenna device comprisingan antenna for receiving a modulated signal radiated by the EUT via the array antenna or radiating the modulated signal to the array antenna,
wherein the antenna is disposed at a position on a z-axis perpendicular to the plane defined by the plurality of antenna elements such that a group delay distortion of the modulated signal is reduced in a near-field region.

US Pat. No. 10,382,090

SPREAD SPECTRUM CLOCK GENERATOR, PATTERN GENERATOR, SPREAD SPECTRUM CLOCK GENERATION METHOD, AND PATTERN GENERATION METHOD

ANRITSU CORPORATION, Kan...

8. A spread spectrum clock generation method that spreads a spectrum of a signal with a predetermined carrier frequency to generate a spread spectrum clock (SSC) signal in order to generate a spread spectrum clock defined by a communication standard in a desired spread mode, the method comprising:shifting the predetermined carrier frequency to generate, from one spread mode, a spread spectrum clock signal of another pseudo spread mode,
wherein the desired spread mode is any one of a down-spread mode, a center-spread mode, and an upper-spread mode,
at least one of a first control step of shifting the carrier frequency to a frequency that is lower than the predetermined carrier frequency in a case in which the spread spectrum clock signal of a pseudo center-spread mode is generated from the down-spread mode, the spread spectrum clock signal of a pseudo upper-spread mode is generated from the down-spread mode, or the spread spectrum clock signal of the pseudo upper-spread mode is generated from the center-spread mode and a second control step of shifting the carrier frequency to a frequency that is higher than the predetermined carrier frequency in a case in which the spread spectrum clock signal of a pseudo down-spread mode is generated from the center-spread mode, the spread spectrum clock signal of the pseudo down-spread mode is generated from the upper-spread mode, or the spread spectrum clock signal of the pseudo center-spread mode is generated from the upper-spread mode, and
in a case in which the spread spectrum clock signal of the pseudo upper-spread mode is generated from the down-spread mode, when a carrier frequency and a modulation factor of the pseudo upper-spread mode are Fup and SSCup, respectively, and a carrier frequency and a modulation factor of the down-spread mode are Fdown and SSCdown, respectively, a step of shifting the carrier frequency of the down-spread mode, using a calculation expression Fdown=Fup×(1+SSCup), and correcting the modulation factor of the down-spread mode, using a calculation expression SSCdown=SSCup/(1+SSCup).

US Pat. No. 10,317,503

TESTING DEVICE COMPRISING CIRCUITRY TO CALCULATE A CORRECTION VALUE FOR CALIBRATING CHANNEL LOSS

Anritsu Corporation, Ats...

1. A testing device comprising:a signal generator configured to generate a first signal output to a device under test;
an output module connected to the device under test;
a channel selector provided between the signal generator and the output module and configured to select one of a plurality of channels;
an input module configured to input a second signal supplied from the device under test;
a signal receiver configured to receive the second signal;
a correction value calculator configured to calculate a correction value for calibrating loss of a respective one of the plurality of channels;
an output-side loopback module provided between the channel selector and the output module, and connected to one of a loopback channel for looping back the first signal to the signal receiver side, and the output module; and
an input-side loopback module provided between the signal receiver and the input module and connected to one of the loopback channel and the input module,
wherein
the channel selector is enabled to select, between the input and output modules, one of at least one amplifier channel including one amplifier for amplifying the first signal, and at least one non-amplifier channel not including an amplifier; and
the correction value calculator calculates a correction value for calibrating loss of a respective one of the plurality of channels, based on a signal level received by the signal receiver via the loopback channel, when the channel selector selects the non-amplifier channel, and in a calibration-level output state indicating a state where a signal level, at the output module, of the first signal generated by the signal generator reaches a predetermined transmission reference level of calibration;
wherein further the signal generator comprises:
a signal generation source configured to generate a signal;
a level variation module configured to vary a level of the signal generated by the signal generation source;
a first output adjustment module configured to output a first control signal to the level variation module in accordance with an output level of the level variation module to cause an output level of the signal generator to reach a predetermined target level;
a second output adjustment module configured to output a second control signal to the first output adjustment module to vary a level of the first control signal; and
a storage module configured to store a level of the second control signal in the calibration-level output state at factory shipment,
wherein after the factory shipment, the second output adjustment module reads the level of the second control signal from the storage module, and sets the read level in the first output adjustment module.

US Pat. No. 10,279,376

MEASUREMENT RESULT DISPLAY DEVICE AND MEASUREMENT RESULT DISPLAY METHOD

ANRITSU CORPORATION, Kan...

1. A measurement result display device comprising:a display control unit that arranges and displays a plurality of measurement result images indicating measurement results of a plurality of measurement items performed by a measuring instrument, respectively, on a display device; and
a storage unit that has an allowable upper limit value and an allowable lower limit value according to a measurement item stored therein,
wherein, as a measurement result image, the display control unit displays
a frame region,
an allowable upper limit value indicator and an allowable lower limit value indicator that indicate two predetermined positions which are set within the frame region so as to be separated from each other in a first direction across the frame region, as positions indicating the allowable upper limit value and the allowable lower limit value stored in the storage unit, and
a measurement value indicator that indicates a measurement value measured by the measuring instrument, the measurement value indicator being displayed at a position to which the measurement value corresponds with respect to the allowable upper limit value indicator and the allowable lower limit value indicator, with the first direction set to a direction of increase or decrease in numerical value.

US Pat. No. 10,277,492

MOBILE TERMINAL TEST DEVICE AND METHOD

ANRITSU CORPORATION, Kan...

1. A mobile terminal test device, comprising:a transceiver that simultaneously outputs a plurality of downlink signals, each in a different one of a plurality of frequency bands, for being applied to a mobile terminal of a test target corresponding to a carrier aggregation scheme, and receives an uplink signal output from the mobile terminal;
a signal generator configured to output an interference signal in predetermined frequency intervals over a predetermined frequency range, the interference signal being a continuous wave (CW) used in measurement of out-of-band blocking performance;
a frequency variable filter that receives the interference signal output from the signal generator, that suppresses a frequency component of the interference signal other than a fundamental frequency component of the interference signal, the suppressed frequency component overlapping a designated frequency band among the plurality of frequency bands of the downlink signal output from the transceiver, and that outputs a resultant interference signal; and
a computer configured to:
combine the interference signal output from the frequency variable filter with the plurality of downlink signals output from the transceiver and apply a combination signal to the mobile terminal, the mobile terminal test device measuring the throughputs for respective interference signal frequencies for the plurality of downlink signals of the mobile terminal receiving the combination signal;
measure the throughputs for respective interference signal frequencies for the plurality of downlink signals of the mobile terminal receiving the combination signal, collectively with respect to the plurality of downlink signals;
determine whether or not the measured throughput for each interference signal frequency is equal to or greater than the defined value;
designate a signal suppression band of the frequency variable filter, the designated signal suppression band overlapping the frequency band of a downlink signal determined not to reach the defined value, and perform re-measurement of the throughput for the downlink signal;
determine whether or not the re-measured throughput is equal to or greater than the defined value; and
determine that out-of-band blocking performance of all the downlink signals at the interference signal frequency satisfies a criterion in a case where the measured throughputs at a certain interference signal frequency are determined to be equal to or greater than the defined value or a case where the re-measured throughputs of all the downlink signals are determined to be equal to or greater than the defined value, and switch the frequency of the interference signal output from the signal generator to a next of the predetermined frequency intervals in the predetermined frequency range.

US Pat. No. 10,277,339

MEASURING APPARATUS AND MEASURING METHOD

Anritsu Corporation, Ats...

1. A measuring apparatus comprising:a wireless communication unit which wirelessly communicates with at least one device under test;
a measurement unit which receives data from the at least one device under test through the wireless communication unit, measures the at least one device under test based on the received data and outputs measurement results;
a display device which displays predetermined information regarding the measurement;
an information acquisition unit which, on the condition that a connection state of the wireless communication has changed to a predetermined state, acquires, from the wireless communication unit, state change related information including information indicating the predetermined state and information on an address of the device under test relating to the wireless communication of which the communication state has changed; and
a display control unit which performs control to display the state change related information on the display device for each of the devices under test.

US Pat. No. 10,270,543

SIGNAL GENERATING APPARATUS AND SIGNAL GENERATING METHOD

ANRITSU CORPORATION, Kan...

1. A signal generating apparatus that generates an output signal to which a desired loss value is applied, in order to test a device corresponding to a transmission standard of a digital signal, the signal generating apparatus comprising:an inverse characteristic calculation unit that sets an amplitude characteristic of an input signal based on the transmission standard as input data to calculate a transfer function and an inverse characteristic of the transfer function from an inverse characteristic of the amplitude characteristic;
an inverse Fourier transform unit that performs inverse Fourier transform of the inverse characteristic of the transfer function which is calculated by the inverse characteristic calculation unit to calculate an impulse response constituted by a plurality of points;
an impulse response extract unit that extracts the points corresponding to the number of taps in a desired range from the impulse response, on the basis of a peak of an amplitude of the impulse response obtained by the inverse Fourier transform unit;
a signal generation unit that generates the output signal by setting tap coefficients, which are calculated on the basis of values of the points corresponding to the number of taps in the desired range which are extracted from the impulse response by the impulse response extract unit, in an FIR filter;
a power spectrum calculation unit that calculates an amplitude characteristic of a power spectrum on the basis of the values of the points corresponding to the number of taps in the desired range which are extracted from the impulse response by the impulse response extract unit; and
a loss value correction unit that corrects a loss value of the amplitude characteristic of the power spectrum by using a loss value correction curve obtained from a difference value between a set loss value which is a loss value of a target amplitude characteristic in the input data and a loss value of the amplitude characteristic of the power spectrum calculated by the power spectrum calculation unit,
wherein the signal generation unit sets the tap coefficients of the FIR filter by using the amplitude characteristic of the power spectrum which is corrected by the loss value correction unit to generate the output signal.

US Pat. No. 10,263,714

MOBILE TERMINAL TESTING DEVICE AND TRANSMITTING ANTENNA TESTING METHOD

Anritsu Corporation, Ats...

1. A mobile terminal testing device which tests a mobile terminal including a plurality of transmitting antennas by transmitting/receiving radio signals between the mobile terminal testing device and the mobile terminal, the mobile terminal testing device comprising:a radio signal processing module configured to transmit and receive radio signals to and from the mobile terminal;
a controller configured to cause the mobile terminal to switch one from another among the plurality of transmitting antennas by a predetermined radio signal transmitted to the mobile terminal via the radio signal processing module; and
a call processing module,
wherein
the controller outputs to the call processing module, a first signal which enables the mobile terminal testing device to designate selection of a transmitting antenna, and a second signal which designates the transmitting antenna, and
the call processing module transmits a predetermined RRC message to the mobile terminal based on the first signal and thereafter transmits a predetermined PDCCH to the mobile terminal based on the second signal.