ClassID:

223290

H04B1/0017 - 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 radiofrequency or intermediate frequency stage Digital filtering

Recent Application in this class:
#1
20260128752
2026-05-07

Increasing Bandwidth for Digital Predistortion in Multi-Channel Wideband Communication Systems

#2
20250138575
2025-05-01

CONFIGURABLE LOAD SENSING VIA A PROGRAMMABLE DRIVE SENSE UNIT

#3
20240322848
2024-09-26

HIGH FREQUENCY CIRCUIT AND COMMUNICATION APPARATUS

#4
20240154629
2024-05-09

24GHZ BAND-PASS FILTER

#5
20240063829
2024-02-22

Smart FFT measurement for reconfigurable sensor using a wideband digital receiver

#6
20240056163
2024-02-15

COMMUNICATION SYSTEM, METHOD, RELAY STATION, AND CONTROL DEVICE

#7
20230387959
2023-11-30

MULTI-STAGE DIGITAL CONVERTERS

#8
20230370098
2023-11-16

SYSTEM AND METHOD FOR INCREASING BANDWIDTH FOR DIGITAL PREDISTORTION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS

#9
20230324950
2023-10-12

Transmit side of low voltage drive circuit (LVDC) with non-sync data channels

#10
20230244265
2023-08-03

Data formatting module of a low voltage drive circuit

#11
20230236623
2023-07-27

Programmable drive sense unit

#12
20230163790
2023-05-25

Digital radio frequency transmitter and wireless communication device including the same

#13
20220357762
2022-11-10

Configuring a programmable drive sense unit

#14
20220269305
2022-08-25

Data formatting of a low voltage drive circuit data communication system

#15
20220231714
2022-07-21

SYSTEM AND METHOD FOR INCREASING BANDWIDTH FOR DIGITAL PREDISTORTION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS

#16
20220166481
2022-05-26

UE capability space frequency multi TRP user equipment peak to average power ratio reduction

#17
20220158662
2022-05-19

Group Delay Compensation

#18
20210384892
2021-12-09

PARALLEL IMPLEMENTATIONS OF FRAME FILTERS WITH RECURSIVE TRANSFER FUNCTIONS

#19
20210376871
2021-12-02

WIDE BANDWIDTH DIGITAL PREDISTORTION SYSTEM WITH REDUCED SAMPLING RATE

#20
20210367624
2021-11-25

Digital radio frequency transmitter and wireless communication device including the same

#21
20210320629
2021-10-14

Communication system and output power linearization method thereof

#22
20210240218
2021-08-05

Data formatting circuit of a low voltage drive circuit data communication system

#23
20210203420
2021-07-01

Digital resampling method and apparatus

#24
20210050870
2021-02-18

Digital-to-analog conversion system

#25
20200412390
2020-12-31

Radio frequency circuits and methods of processing radio frequency signals

#26
20200395968
2020-12-17

Method for compensating gain flatness of transceiver

#27
20200358466
2020-11-12

System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems

#28
20200358460
2020-11-12

Carrier aggregation with switchable impedance and reconfigurable network selection

#29
20200336161
2020-10-22

Wide bandwidth digital predistortion system with reduced sampling rate

#30
20200287562
2020-09-10

Low noise quantized feedback configuration

#31
20200249715
2020-08-06

Receive analog to digital circuit of a low voltage drive circuit data communication system

#32
20200169326
2020-05-28

Digital resampling method and apparatus

#33
20200044754
2020-02-06

Method and system to enhance accuracy and resolution of system integrated scope using calibration data

#34
20200021319
2020-01-16

System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems

#35
20200007146
2020-01-02

Low noise quantized feedback configuration

#36
20190379407
2019-12-12

High speed digital bit generator for optical frontal interface

#37
20190280722
2019-09-12

Wide bandwidth digital predistortion system with reduced sampling rate

#38
20190165907
2019-05-30

Signal transmission method and apparatus

#39
20190068133
2019-02-28

Method and apparatus for digital pre-distortion with reduced oversampling output ratio

#40
20190013828
2019-01-10

METHOD AND SYSTEM FOR IMPROVING SPURIOUS FREE DYNAMIC RANGE OF SIGNAL PROCESSING SYSTEMS

#41
20180294825
2018-10-11

DYNAMIC BIAS CONTROL

#42
20180270097
2018-09-20

Method and apparatus for converting analog radio frequency (RF) signals to the digital domain in a multiband and multicarrier wireless communication system

#43
20180248571
2018-08-30

Fully integrated power amplifier employing transformer combiner with enhanced back-off efficiency

#44
20180076834
2018-03-15

Switchable impedance phase shifter for switched multiplexing applications

#45
20170353199
2017-12-07

Wide bandwidth digital predistortion system with reduced sampling rate

#46
20170319135
2017-11-09

Wireless communication method, wearable device, mobile terminal, and system

#47
20170288921
2017-10-05

Frequency shaping and adaptive rounding for O-QPSK and MSK transmission in polar coordinates

#48
20170250716
2017-08-31

Circuits and methods for detecting interferers

#49
20170141910
2017-05-18

Systems and methods for real-time operation of software radio frequency canceller

#50
20170135037
2017-05-11

Receiving circuit, receiving device including the same, and receiving method

#51
20170134056
2017-05-11

Remote radio head and associated method

#52
20170118059
2017-04-27

Method and apparatus for converting analog radio frequency (RF) signals to the digital domain in a multiband and multicarrier wireless communication system

#53
20170093354
2017-03-30

Single conversion receiver and communication system including same

#54
20170078134
2017-03-16

Method for demodulation and demodulator

#55
20170019203
2017-01-19

OPTICAL RECEIVER AND METHOD FOR UPDATING TAP COEFFICIENT OF DIGITAL FILTER

#56
20170012655
2017-01-12

Receiver, communication unit, and method for down-converting a radio frequency signal

#57
20170012607
2017-01-12

Discrete time filter, communication unit, and method for resonant charge transfer

#58
20170005677
2017-01-05

Dynamic bias control

#59
20160308559
2016-10-20

Digital frontend system for a radio transmitter and a method thereof

#60
20160269208
2016-09-15

Module for a radio receiver

#61
20160261294
2016-09-08

Wide bandwidth digital predistortion system with reduced sampling rate

#62
20160191087
2016-06-30

System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems

#63
20160028424
2016-01-28

RF receiver

#64
20160013816
2016-01-14

Adaptive/configurable intermediate frequency (IF) wireless receiver and bluetooth device using the same

#65
20150372700
2015-12-24

Software programmable, multi-segment capture bandwidth, delta-sigma modulators for cellular communications

#66
20150303954
2015-10-22

System, method, and apparatus for analog signal conditioning of high-speed data streams

#67
20150188602
2015-07-02

Dynamic range compressor

#68
20150188588
2015-07-02

Sub-band splitter unit and envelope curves detector provided with a sub-band splitter unit

#69
20150180519
2015-06-25

Wide bandwidth digital predistortion system with reduced sampling rate

#70
20140177748
2014-06-26

Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection

#71
20140105325
2014-04-17

Arbitrary sample rate conversion for communication systems

#72
20130163699
2013-06-27

Digital front end receiver using DC offset compensation scheme

#73
20130077713
2013-03-28

System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems

#74
20120203812
2012-08-09

Method and apparatus for generating signal having converted sampling rate in communication system

#75
20120147929
2012-06-14

Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection

#76
20110069784
2011-03-24

Hybrid heterodyne transmitters and receivers

#77
20110051846
2011-03-03

Processing EM Bands

#78
20100311375
2010-12-09

Sampling mixer, quadrature demodulator, and wireless device

#79
20100056201
2010-03-04

SEMICONDUCTOR INTEGRATED CIRCUIT AND CIRCUIT OPERATION METHOD

#80
20090036160
2009-02-05

Direct RF digital transceiver and method

#81
20080224763
2008-09-18

Transferred-impedance filtering in RF receivers

#82
20070098057
2007-05-03

Wireless communications system and wireless digital receiver for use therein

#83
20060208791
2006-09-21

Transferred-impedance filtering in RF receivers

#84
20060133551
2006-06-22

Configurable filter and receiver incorporating same

#85
20060111074
2006-05-25

Hybrid heterodyne transmitters and receivers

#86
20050079838
2005-04-14

Architecture for an AM/FM digital intermediate frequency radio

#87
16369317
2020-07-14

Digital-to-analog conversion system

#88
16135971
2019-12-24

Apparatuses and methods involving radio configurability for adapting to radio-frequency systems

#89
16111940
2019-12-31

System and method for converting a digital input signal into an analog output signal

#90
15879024
2019-01-15

Parameterizable bandpass delta-sigma modulator

#91
15648256
2018-05-29

Adaptive filter with recursive processing

#92
15378689
2018-03-06

Method and apparatus for hybrid delta-sigma and Nyquist data converters

#93
15343674
2017-10-24

Method and apparatus to increase dynamic range in delta-sigma ADC using internal feedback across all integrators in loop-filter

#94
14570640
2016-09-06

Method and apparatus for converting analog radio frequency (RF) signals to the digital domain in a multiband and multicarrier wireless communication system