ClassID:

223293

H04B1/0028 - CPC Classification

Classification description:

Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission; Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage

Sub-classes:
Recent Application in this class:
#1
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2026-05-07

SYSTEM AND METHODS FOR SUPPRESSING CHANNEL REPLICA

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2026-03-05

IQ PASSIVE MIXER WITH ENHANCED CONVERSION GAIN

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WIRELESS COMMUNICATION DEVICE AND RADIO FREQUENCY SIGNAL PROCESSING METHOD THEREOF

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SYSTEM AND METHOD FOR COMBINING AND SEPARATING NON-ORTHAGONAL SIGNALS IN MULTI-CHANNEL COMMUNICATION SYSTEMS AND MULTIPLE ACCESS SYSTEMS

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20260029538
2026-01-29

POSITIONING DEVICE

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20250373274
2025-12-04

WIRELESS RECEIVER APPARATUS AND METHOD

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20250343594
2025-11-06

RELAY STATION, TRANSMISSION METHOD FOR RELAY STATION, AND COMMUNICATION SYSTEM

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SELF-INTERFERENCE CANCELLATION

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20250294330
2025-09-18

METHOD AND ON-BOARD-UNIT FOR DSRC

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2025-09-18

MULTIPLE-INPUT MULTIPLE-OUTPUT ANTENNA RECEIVER WITH HYBRID ANALOG/DIGITAL BEAMFORMING

#11
20250247115
2025-07-31

INTERMODULATION DISTORTION SUPPRESSION CIRCUIT AND METHOD

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20250233602
2025-07-17

METHODS AND APPARATUSES FOR ADAPTING CONFIGURATIONS FOR CONVERTING BETWEEN ANALOG AND DIGITAL SIGNALS

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20250062785
2025-02-20

WIRELESS RADIO FREQUENCY RECEIVING DEVICE AND CONTROL METHOD THEREOF

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Integrated Sensing and Communication Using Neural Networks

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VERY SMALL APERTURE TERMINAL FOR SATELLITE COMMUNICATION WITH DIRECT CONVERSION AND ELECTRONIC POLARIZATION ORIENTATION CONTROL

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20240413844
2024-12-12

MULTI-LOOP SIGNAL PROCESSING

#17
20240333316
2024-10-03

FILTERING CARRIER FREQUENCY OFFSET ESTIMATIONS FOR A DEVICE PAIR COMBINATION

#18
20240291570
2024-08-29

Optical Analog-To-Digital Converter

#19
20240162921
2024-05-16

SPUR AND IMAGE SUPPRESSION IN A RADIO FREQUENCY SIGNAL GENERATOR

#20
20240146338
2024-05-02

Load Modulated Radio-frequency Amplifier with Extended Tuning Range

#21
20240063832
2024-02-22

Intermodulation distortion suppresion circuit and method

#22
20240014843
2024-01-11

MULTI-CHIP APPARATUS AND ELECTRONIC DEVICE

#23
20230378985
2023-11-23

COMMUNICATION DEVICE AND METHOD FOR OPERATING SAME

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20230378980
2023-11-23

COMMUNICATION CIRCUIT AND TERMINAL

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20230318643
2023-10-05

APPARATUS, SYSTEM AND METHOD OF TRANSMITTING A WIDEBAND RADIO FREQUENCY (RF) TRANSMIT (TX) SIGNAL

#26
20230291424
2023-09-14

WIRELESS RECEIVER APPARATUS AND METHOD

#27
20230268938
2023-08-24

Wireless communication device and method for determining data transmission rate

#28
20230198555
2023-06-22

Mitigating baseband pulse dispersion via radiofrequency-to-baseband conversion

#29
20230091838
2023-03-23

BASEBAND RECEIVER CIRCUIT

#30
20230063118
2023-03-02

RADIO FREQUENCY MODULE AND COMMUNICATION DEVICE

#31
20230031441
2023-02-02

Systems and methods for fast AGC convergence using high-speed interface between baseband and RFIC

#32
20220060203
2022-02-24

Transmit driver architecture

#33
20220021405
2022-01-20

Signal processing chip and communications device

#34
20210409048
2021-12-30

Wireless receiver apparatus and method

#35
20210376911
2021-12-02

Millimeter wave base station antenna system

#36
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2021-11-25

Coverage extension antenna system

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20210281283
2021-09-09

System-aware RF front ends for wireless communication systems

#38
20210234560
2021-07-29

Signal generation apparatus and signal generation method

#39
20210194565
2021-06-24

Scalable, multi-layer MIMO transceiver

#40
20210119689
2021-04-22

Reconfigurable hybrid beamforming MIMO receiver with inter-band carrier aggregation and RF-domain LMS weight adaptation

#41
20210075452
2021-03-11

Wireless receiver apparatus and method

#42
20210075451
2021-03-11

Dual processor power saving architecture communications system

#43
20210072813
2021-03-11

Dual processor system for reduced power application processing

#44
20210067208
2021-03-04

Passive beam mechanics

#45
20210022027
2021-01-21

Spectrum monitoring

#46
20200358463
2020-11-12

Detecting high TX leakage to improve linearity

#47
20200313749
2020-10-01

Reconfigurable hybrid beamforming MIMO receiver with inter-band carrier aggregation and RF-domain LMS weight adaptation

#48
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2020-08-20

Poly phased, time-interleaved RF-DAC for multi-function frequency-agile, tunable transmitter

#49
20200195280
2020-06-18

Wireless device with MIPI bus

#50
20200195203
2020-06-18

Methods and apparatuses for digital pre-distortion

#51
20200177213
2020-06-04

Carrier aggregated signal transmission and reception

#52
20200137684
2020-04-30

Multiplexed signal processing system for bluetooth and WLAN transceiver

#53
20200136657
2020-04-30

Modular RF front-end for access points and radio heads

#54
20200052725
2020-02-13

Signal transmission apparatus

#55
20200015167
2020-01-09

Methods and systems for reuse of a wireless medium during wake-up of a wireless device

#56
20200014397
2020-01-09

Mapping circuit and method for selecting cells of a multi core hybrid I/Q digital to analog converter

#57
20190379412
2019-12-12

DC coupled radio frequency modulator

#58
20190349776
2019-11-14

System and method for identifying an off-channel radio frequency source

#59
20190349014
2019-11-14

Signal processing method and device

#60
20190327070
2019-10-24

Method and apparatus for canceling self interference signal in communication system

#61
20190305611
2019-10-03

Dual decoder for wireless charging receiver and wireless charging receiver using the same

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20190288722
2019-09-19

Communication circuit including a transmitter

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20190273518
2019-09-05

Systems and methods for delta-sigma digitization

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20190253126
2019-08-15

Reconfigurable hybrid beamforming MIMO receiver with inter-band carrier aggregation and RF-domain LMS weight adaptation

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20190207643
2019-07-04

Blocker-resilient broadband wireless transceivers with multi-user collision tolerance based on mixed-mode correlation

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20190207631
2019-07-04

Multi-band multi-mode software defined radio

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20190173501
2019-06-06

Carrier aggregated signal transmission and reception

#68
20190171722
2019-06-06

Automated RF dataset creation

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20190052234
2019-02-14

Methods and apparatuses for digital pre-distortion

#70
20190028124
2019-01-24

Mixer S11 control via sum component termination

#71
20190028087
2019-01-24

Filter circuit

#72
20190020310
2019-01-17

Apparatus and method of reducing power consumption in a low intermediate frequency radio receiver

#73
20180376420
2018-12-27

Multi-band concurrent multi-channel receiver

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2018-10-25

Method and apparatus for signal processing by light waveform shaping

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2018-10-25

Bias-voltage-adjustable communications apparatus and communication method

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20180302119
2018-10-18

PAPR reduction in a microwave backhaul outdoor unit

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20180287647
2018-10-04

Radio receiving device and transmitting and receiving device

#78
20180262220
2018-09-13

Radio frequency control circuit

#79
20180234921
2018-08-16

Methods and systems for reuse of a wireless medium during wake-up of a wireless device

#80
20180213474
2018-07-26

DSP assisted and on demand RF and analog domain processing for low power wireless transceivers

#81
20180191457
2018-07-05

Effective cross-layer satellite communications link interferences mitigation in the presence of various RFI types

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20180180709
2018-06-28

Mobile emergency perimeter system and method

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20180176665
2018-06-21

METHOD AND APPARATUS FOR SIGNAL PROCESSING BY LIGHT WAVEFORM SHAPING

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20180138928
2018-05-17

Communication apparatus and method

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20180102794
2018-04-12

Signed local oscillator leakage cancelation

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20180076904
2018-03-15

Method and system for interference mitigation in wireless communications assemblies

#87
20180034561
2018-02-01

Distributed system for radio frequency environment simulation

#88
20170346520
2017-11-30

Multi-standard, multi-channel expandable TV/satellite receiver

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20170207935
2017-07-20

System, device, and method for shaping transmit noise

#90
20170163301
2017-06-08

Wideband digital spectrometer

#91
20170104604
2017-04-13

REVERSE POWER SUPPLY METHOD, DEVICE AND STORAGE MEDIUM

#92
20170054447
2017-02-23

Background calibration of interleaved timing errors in digital to analog converters

#93
20160365911
2016-12-15

LEO flexible single axis beamforming

#94
20160359638
2016-12-08

Reducing current transients in energy efficient ehternet devices

#95
20160337158
2016-11-17

Demodulation device

#96
20160226544
2016-08-04

ADAPTIVE WIRELESS BASEBAND INTERFACE

#97
20160197628
2016-07-07

Wideband digital spectrometer

#98
20160191183
2016-06-30

Method of filtering digital signal for maintaining data transmission rate in TDD or TDMA system and communication system adopting the same

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20160095055
2016-03-31

DSP assisted and on demand RF and analog domain processing for low power wireless transceivers

#100
20150350914
2015-12-03

Ground and air vehicle electromagnetic signature detection and localization

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20150350228
2015-12-03

Electromagnetic threat detection and mitigation in the Internet of Things

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20150349810
2015-12-03

Cross-modality electromagnetic signature analysis for radio frequency persona identification

#103
20150222464
2015-08-06

System for direct conversion receivers

#104
20150201436
2015-07-16

Method of mobile terminal internal communications

#105
20150200697
2015-07-16

Interference cancelation using cooperative sensing

#106
20150017938
2015-01-15

Configurable transceiver

#107
20140286456
2014-09-25

Device and method for removing direct current offset using randomized control pulse

#108
20140220920
2014-08-07

Receiver that reconfigures between zero intermediate frequency and direct sampling based on channel conditions

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20140125518
2014-05-08

RF/digital signal-separating GNSS receiver and manufacturing method

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20140064344
2014-03-06

Software-defined radio terminal apparatus, and method for distributing and installing radio applications

#111
20140030981
2014-01-30

Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver

#112
20130272312
2013-10-17

Method and apparatus for mixed-mode spectrum communication

#113
20130230026
2013-09-05

Compact transceiver architecture for achieving device to device (D2D) communication using uplink and downlink carrier frequencies

#114
20130223571
2013-08-29

Mechanisms for the correction of I/Q impairments

#115
20130072139
2013-03-21

Apparatus and method for processing reduced bandwidth envelope tracking and digital pre-distortion

#116
20130045696
2013-02-21

Switching gates mixer

#117
20130028363
2013-01-31

Multiple input discrete digital receiver

#118
20130028362
2013-01-31

Multiple path discrete digital receiver

#119
20130028361
2013-01-31

Discrete digital receiver with blocker circuit

#120
20130028360
2013-01-31

WIDE BANDWIDTH DISCRETE DIGITAL RECEIVER

#121
20130028359
2013-01-31

Programmable discrete digital receiver components

#122
20130028351
2013-01-31

Discrete digital receiver with sample memory

#123
20130028349
2013-01-31

Multiple output discrete digital transmitter

#124
20130028348
2013-01-31

Discrete digital transmitter

#125
20130028303
2013-01-31

Discrete digital receiver with FTBPF

#126
20130028302
2013-01-31

Discrete digital transceiver

#127
20120264379
2012-10-18

Gain index based radio calibration

#128
20120200355
2012-08-09

Digital predistortion of a power amplifier for signals comprising widely spaced carriers

#129
20120086504
2012-04-12

Nonlinear distortion compensating receiver and nonlinear distortion compensation method

#130
20120063372
2012-03-15

Method and apparatus for adaptive channel utilisation

#131
20120001660
2012-01-05

Software-defined radio

#132
20110288823
2011-11-24

Wideband digital spectrometer

#133
20110190029
2011-08-04

Method to control a multiradio RF platform

#134
20110158357
2011-06-30

Antenna diversity system with frame synchronization

#135
20100301928
2010-12-02

Low noise, low power subsampling receiver

#136
20100273431
2010-10-28

Gain index based radio calibration

#137
20100244896
2010-09-30

Programmable logic device with embedded switch fabric

#138
20100202496
2010-08-12

RECONFIGURABLE TRANSFORM DOMAIN RECEIVER

#139
20100074311
2010-03-25

Time accurate control of RF over a digrf interface

#140
20100027598
2010-02-04

Software radio transceiver

#141
20090221249
2009-09-03

Method and arrangement for signal processing in a receiver that can be tuned to different carriers

#142
20090117938
2009-05-07

IC FOR A HIGH FREQUENCY COMMUNICATION DEVICE WITH MINIMAL OFF CHIP COMPONENTS

#143
20080278197
2008-11-13

Programmable logic device with embedded switch fabric

#144
20080198903
2008-08-21

Frequency switcher, RFID system and distance measuring apparatus incorporating the Frequency switcher

#145
20080171520
2008-07-17

Method and apparatus for adaptive channel utilisation

#146
20080036636
2008-02-14

Reduced noise radio frequency integrated circuit

#147
20070206701
2007-09-06

RFID reader with digital waveform encoding and digital decoding

#148
20070132623
2007-06-14

Wireless receiver circuit with merged ADC and filter

#149
20070071078
2007-03-29

Radio apparatus

#150
20060279446
2006-12-14

Method and apparatus for RF signal demodulation

#151
20060252402
2006-11-09

Radio frequency integrated circuit with noise immunity border

#152
20060128343
2006-06-15

Method for processing an analog signal and device therefor

#153
20060072685
2006-04-06

Wireless communication system with hardware-based frequency burst detection

#154
20060015674
2006-01-19

Self-booting software defined radio module

#155
20060003795
2006-01-05

Communication apparatus and method for reconfiguring communication apparatus

#156
20050202841
2005-09-15

Apparatus and method for remotely modifying reconfigurable hardware in a mobile station

#157
20050136879
2005-06-23

Radio frequency integrated circuit having reduced receiver noise levels

#158
20050136878
2005-06-23

Radio frequency integrated circuit layout with noise immunity border

#159
20050003767
2005-01-06

Unified bandgap voltage and PTAT current reference circuit

#160
17462145
2022-12-20

Low intermediate frequency transmitter

#161
16870505
2020-12-15

Flexible wide-range and high bandwidth auxiliary clock and data recovery (CDR) circuit for transceivers

#162
16371254
2020-05-19

Ultra-broadband microwave radiometer optimized for microsatellite applications

#163
16281112
2020-03-03

Uplink multiple access method based on frozen bit patterns of polar codes

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14300538
2015-10-20

Mixer circuits with programmable characteristics