ClassID:

225827

H04L25/06 - CPC Classification

Classification description:

Baseband systems; Details ; arrangements for supplying electrical power along data transmission lines Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection

Sub-classes:
Recent Application in this class:
#1
20250350508
2025-11-13

ENHANCING SIGNAL FIDELITY DURING INTERPOLATION

#2
20250240188
2025-07-24

DATA AND CLOCK TRANSMISSION OVER A MAGNETIC CHANNEL

#3
20240406040
2024-12-05

SYNCHRONOUS BI-DIRECTIONAL COMMUNICATION OVER A NETWORK

#4
20240406037
2024-12-05

SYSTEMS AND METHODS FOR COMMUNICATION OVER A NETWORK

#5
20240179035
2024-05-30

CONNECTING CIRCUIT AND COMMUNICATION INTERFACE

#6
20240097948
2024-03-21

CONNECTING CIRCUIT AND COMMUNICATION INTERFACE

#7
20240056060
2024-02-15

THRESHOLD VOLTAGE GENERATOR CIRCUIT AND CORRESPONDING RECEIVER DEVICE

#8
20230403184
2023-12-14

MEMORY DECISION FEEDBACK EQUALIZER

#9
20230353430
2023-11-02

METHOD AND APPARATUS FOR ESTIMATING DIRECT CURRENT INTERFERENCE, STORAGE MEDIUM AND TERMINAL

#10
20230224194
2023-07-13

Data encoding method, data decoding method, and communication apparatus

#11
20220417065
2022-12-29

Method of estimating transmit symbol vectors in an overloaded communication channel

#12
20220231733
2022-07-21

Apparatus and methods for multi-antenna communications

#13
20220158875
2022-05-19

Decision feedback equalization tap systems and related apparatuses and methods

#14
20220140821
2022-05-05

Wideband buffer with DC level shift and bandwidth extension for wired data communication

#15
20220094343
2022-03-24

Waveform shaping circuit, signal generation apparatus, and signal reading system

#16
20210344332
2021-11-04

Waveform shaping circuit, signal generation apparatus, and signal reading system

#17
20210119837
2021-04-22

Baseband system for a wireless receiver and baseband signal processing method thereof

#18
20210083732
2021-03-18

Apparatus and methods for multi-antenna communications

#19
20200382064
2020-12-03

FIBER-OPTIC NODE WITH FORWARD DATA CONTENT DRIVEN POWER CONSUMPTION

#20
20200358463
2020-11-12

Detecting high TX leakage to improve linearity

#21
20200252244
2020-08-06

Memory decision feedback equalizer

#22
20200228233
2020-07-16

Transmitter for cancelling simultaneous switching noise and data transmission method in the same

#23
20200120402
2020-04-16

MODULE AND METHOD FOR MONITORING POWER

#24
20200106412
2020-04-02

Voltage sampler driver with enhanced high-frequency gain

#25
20200028719
2020-01-23

Apparatus for performing baseline wander correction

#26
20190372628
2019-12-05

Apparatus and methods for multi-antenna communications

#27
20190326942
2019-10-24

Asymmetric adjacent channel leakage ratio (ACLR) control

#28
20190305765
2019-10-03

Data bus inversion (DBI) on pulse amplitude modulation (PAM) and reducing coupling and power noise on PAM-4 I/O

#29
20190288870
2019-09-19

Apparatuses and methods for switching communication modes of a transceiver circuit

#30
20190245719
2019-08-08

APPARATUS AND METHODS FOR DC BIAS TO IMPROVE LINEARITY IN SIGNAL PROCESSING CIRCUITS

#31
20190149092
2019-05-16

Differential mixer and method

#32
20190097848
2019-03-28

Memory decision feedback equalizer

#33
20190069295
2019-02-28

Apparatus and method for channel feedback in wireless communication system

#34
20190058443
2019-02-21

Fiber-optic node with forward data content driven power consumption

#35
20190013973
2019-01-10

Decision feedback equalizer circuit with transistor mobility change compensation

#36
20180359129
2018-12-13

Modulation system

#37
20180331661
2018-11-15

APPARATUS AND METHODS FOR POWER AMPLIFIER BIASING

#38
20180309602
2018-10-25

Bias-voltage-adjustable communications apparatus and communication method

#39
20180270043
2018-09-20

Controlling a reference voltage for a clock and data recovery circuit

#40
20180048494
2018-02-15

DeSerializer DC offset adaptation based on decision feedback equalizer adaptation

#41
20170288741
2017-10-05

Demodulator of a wireless communication reader

#42
20170244581
2017-08-24

Method and apparatus for passive continuous-time linear equalization with continuous-time baseline wander correction

#43
20170187556
2017-06-29

Sensor arrangement with variable carrier frequency and Goertzel filtering

#44
20170170790
2017-06-15

Fiber-optic node with forward data content driven power consumption

#45
20170155366
2017-06-01

Apparatus and methods for power amplifier biasing

#46
20170149412
2017-05-25

Adjustable low-pass filter in a compact low-power receiver

#47
20170116813
2017-04-27

Solar lighting with pay-as-you go technology

#48
20170099163
2017-04-06

On-chip AC coupled receiver with real-time linear baseline-wander compensation

#49
20170078085
2017-03-16

Detector

#50
20170070373
2017-03-09

Slicer apparatus and calibration method thereof

#51
20170063580
2017-03-02

Transmitter circuit for and methods of generating a modulated signal in a transmitter

#52
20170026207
2017-01-26

Microwave receiver and magnetoresistive device

#53
20170023968
2017-01-26

Current mirror bias circuit with voltage adjustment

#54
20160359648
2016-12-08

Adaptive bias tuning

#55
20160359535
2016-12-08

Method for transmitting and receiving downlink control information

#56
20160330049
2016-11-10

Method and apparatus for direct conversion receiver correcting direct current offset

#57
20160294584
2016-10-06

Methods and arrangements for spur estimation of a wireless communication packet

#58
20160285656
2016-09-29

Method and apparatus for transmitting signal using sliding-window superposition coding in wireless network

#59
20160285587
2016-09-29

Apparatus and a method for processing a signal depending on a received radio frequency signal

#60
20160248612
2016-08-25

Method and device for canceling a bias of a radio channel sequence

#61
20160248386
2016-08-25

Apparatus and methods for power amplifier bias circuits

#62
20160226515
2016-08-04

System and method for digital signaling

#63
20160218901
2016-07-28

FM receiver and FM receiving method for receiving FM signal

#64
20160212003
2016-07-21

Methods and apparatuses to improve reception of direct detection optical signals

#65
20160197746
2016-07-07

Apparatus and methods for DC bias to improve linearity in signal processing circuits

#66
20160173304
2016-06-16

Signal generating apparatus and signal generating method

#67
20160173299
2016-06-16

Method and apparatus for passive continuous-time linear equalization with continuous-time baseline wander correction

#68
20160087817
2016-03-24

Decision feedback equalizer summation circuit

#69
20160073196
2016-03-10

Control of a loudspeaker output

#70
20160072650
2016-03-10

ADAPTIVE TERMINATION TUNING WITH BIASED PHASE DETECTOR IN A SERDES RECEIVER

#71
20160056903
2016-02-25

System, method and computer storage medium for calibrating RF transceiver

#72
20160050031
2016-02-18

AUTOMATED BLIND COEFFICIENT CONTROL IN ANALOG ACTIVE INTERFERENCE CANCELLATION

#73
20160013958
2016-01-14

Data link power reduction technique using bipolar pulse amplitude modulation

#74
20160013955
2016-01-14

On-chip AC coupled receiver with real-time linear baseline-wander compensation

#75
20150358743
2015-12-10

Sliding bias method and system for reducing idling current while maintaining maximum undistorted output capability in a single-ended pulse modulated driver

#76
20150312068
2015-10-29

Simplified and effective offset calibration circuit for RxLOS in serdes

#77
20150288398
2015-10-08

Highly linear receiver front-end with thermal and phase noise cancellation

#78
20150287263
2015-10-08

Solar lighting with pay-as-you go technology

#79
20150249555
2015-09-03

SerDes PVT detection and closed loop adaptation

#80
20150229494
2015-08-13

Bus communication transceiver

#81
20150222461
2015-08-06

Transmitter, signal-synthesizing circuit, and signal-synthesizing method

#82
20150194884
2015-07-09

Direct current (DC)-DC converter having a multi-stage output filter

#83
20150172080
2015-06-18

Proximity integrated circuit card bias adjustment

#84
20150146820
2015-05-28

Transmitter linearization

#85
20150139371
2015-05-21

Multi-band receiver

#86
20150139340
2015-05-21

SYSTEM AND METHOD FOR DIGITAL SIGNALING

#87
20150110216
2015-04-23

Methods and devices for communications systems using multiplied rate transmission

#88
20150103937
2015-04-16

Interleaved multi-beam acquisition waveform providing concurrent beam selection, automatic gain control (AGC) and automatic frequency correction (AFC)

#89
20150098523
2015-04-09

Apparatus and method for power amplification

#90
20150098426
2015-04-09

Method for transmitting and receiving downlink control information

#91
20150092889
2015-04-02

Method and apparatus for calibrating an input interface

#92
20150070052
2015-03-12

Reference voltage generator for single-ended communication systems

#93
20150063500
2015-03-05

Method and apparatus for switching between low-power, single-chain listen and multiple-chain demodulation

#94
20150052573
2015-02-19

Fiber-optic node with forward data content driven power consumption

#95
20150049822
2015-02-19

Pilot tone for amplifier bias point

#96
20150023398
2015-01-22

Voltage regulator for a serializer/deserializer communication application

#97
20150003560
2015-01-01

Process variable transmitter with variable frequency clock circuit for rejection of clock synchronous noise

#98
20140355715
2014-12-04

Power supply device, method for managing power supply thereof and wireless communication terminal

#99
20140334531
2014-11-13

Methods and apparatus for all digital multi-level outphasing using bandwidth reduction

#100
20140314173
2014-10-23

PVT tolerant differential circuit

#101
20140269998
2014-09-18

System and method for internal AC coupling with active DC restore and adjustable high-pass filter for a PAM 2/4 receiver

#102
20140269995
2014-09-18

Method and apparatus for switching between low-power, single-chain listen and multiple-chain demodulation

#103
20140269878
2014-09-18

Wireless communication system with signal processing mechanism and method of operation thereof

#104
20140269854
2014-09-18

Systems and methods for serial communication

#105
20140247912
2014-09-04

Method and apparatus for correcting in-phase signal and quadrature-phase signal

#106
20140247905
2014-09-04

Signal processing circuit and method

#107
20140233677
2014-08-21

Method and equipment for controlling radio-frequency signal

#108
20140192934
2014-07-10

Receiver filter for DC-wander removal in a contactless smartcard

#109
20140192844
2014-07-10

Fully integrated DC offset compensation servo feedback loop

#110
20140146922
2014-05-29

Quasi-digital receiver for high speed SER-DES

#111
20140086347
2014-03-27

Apparatus and method of receiver architecture and low-complexity decoder for line-coded and amplitude-modulated signal

#112
20140044220
2014-02-13

Reference voltage generator for single-ended communication systems

#113
20130346811
2013-12-26

Decision feedback equalizer

#114
20130322885
2013-12-05

Down-sampling clock and data recovery circuit having selectable rate and phase output and method of operation thereof

#115
20130308718
2013-11-21

System and method for digital signaling

#116
20130308232
2013-11-21

Protection circuit

#117
20130266055
2013-10-10

Transmission system

#118
20130259172
2013-10-03

Receiver with variable gain control transimpedance amplifier

#119
20130259163
2013-10-03

Device including a plurality of analog circuits and an interface that matches characteristics of the analog circuits

#120
20130223570
2013-08-29

Apparatus for removing DC components inherent in a radio frequency chain

#121
20130223569
2013-08-29

Wireless receiver

#122
20130215955
2013-08-22

Apparatus and method for detecting communications from multiple sources

#123
20130202061
2013-08-08

Reference voltage generation in a single-ended receiver

#124
20130142285
2013-06-06

Majority detector apparatus, systems, and methods

#125
20130136216
2013-05-30

Reception device

#126
20130136213
2013-05-30

Reception signal processing device

#127
20130078929
2013-03-28

Apparatus and methods for variable DC bias to improve linearity in signal processing circuits

#128
20130078928
2013-03-28

Apparatus and methods for fixed DC bias to improve linearity in signal processing circuits

#129
20130070704
2013-03-21

Method for transmitting and receiving downlink control information

#130
20130039450
2013-02-14

Method and associated apparatus of data extraction

#131
20130021081
2013-01-24

Circuitry and method for differential signal detection with integrated reference voltage

#132
20120307916
2012-12-06

TRANSMITTING APPARATUS USING DC CARRIER AND RECEIVING APPARATUS USING DC CARRIER

#133
20120300876
2012-11-29

Quadrature modulator, signal generating device, and quadrature modulation method

#134
20120269254
2012-10-25

Channel architecture with multiple signal processing branches for a given physical channel

#135
20120235650
2012-09-20

DC-offset correction circuit

#136
20120230451
2012-09-13

DC OFFSET ESTIMATION DEVICE AND DC OFFSET ESTIMATION METHOD

#137
20120219088
2012-08-30

Signal processing circuit and method

#138
20120207314
2012-08-16

Control of a loudspeaker output

#139
20120155528
2012-06-21

Adaptation of baseline wander correction loop gain settings

#140
20120076230
2012-03-29

Receiver

#141
20120057656
2012-03-08

METHOD AND APPARATUS FOR PASSIVE RADIO FREQUENCY INDENTIFICATION (RFID) READER DIGITAL DEMODULATION FOR MANCHESTER SUBCARRIER SIGNAL

#142
20120021712
2012-01-26

Compact low-power receiver including transimpedance amplifier, digitally controlled interface circuit, and low pass filter

#143
20120002770
2012-01-05

Second-order distortion correcting receiver and second-order distortion correcting method

#144
20110317077
2011-12-29

Digital intensive baseband chain of a receiver

#145
20110201284
2011-08-18

DC offset calibration in a direct conversion receiver

#146
20110193620
2011-08-11

Reference voltage generator for single-ended communication systems

#147
20110188610
2011-08-04

Signal processing device, method and receiving device

#148
20110176638
2011-07-21

Method and apparatus for adjusting a symbol decision threshold at a receiver in a communication network

#149
20110161544
2011-06-30

Low latency serial memory interface

#150
20110128992
2011-06-02

Semiconductor integrated communication circuit and operation method thereof

#151
20110128045
2011-06-02

System having correction unit and correcting method thereof

#152
20110090944
2011-04-21

Apparatus and method for signal quality measurement on GFSK signals

#153
20110080939
2011-04-07

Baseline wander compensation for perpendicular recording

#154
20110026643
2011-02-03

Carrier detect system, apparatus and method thereof

#155
20100311346
2010-12-09

Communication device and method

#156
20100273439
2010-10-28

Radio communication apparatus and DC offset adjustment method

#157
20100232530
2010-09-16

COMMUNICATION APPARATUS

#158
20100226450
2010-09-09

Receiver and wireless communication system equipped with the same

#159
20100215125
2010-08-26

Communications device with in-phase/quadrature (I/Q) DC offset, gain and phase imbalance compensation and related method

#160
20100211990
2010-08-19

Packet Detection Method for Wireless Communication Device and Related Device

#161
20100198540
2010-08-05

Signal processing apparatus and signal processing method

#162
20100197258
2010-08-05

Robust signal detection using correntropy

#163
20100177851
2010-07-15

COMPENSATION METHOD, PROGRAM, RECORDING MEDIUM, AND RECEIVER FOR OFDM SIGNAL HAVING CFO AND DCO

#164
20100134467
2010-06-03

System and method for transmitting and receiving signals

#165
20100128819
2010-05-27

Apparatus for cancelling DC offset and method thereof

#166
20100080324
2010-04-01

Device and method for DC offset cancellation

#167
20100075624
2010-03-25

DC-offset-correction system and method for communication receivers

#168
20100048149
2010-02-25

Techniques for adaptive predistortion direct current offset correction in a transmitter

#169
20100008346
2010-01-14

Signal judgment apparatus and signal judgment method

#170
20090316834
2009-12-24

Apparatus for controlling sensitivity by using digital gating in receiver and receiver with the same

#171
20090284417
2009-11-19

Arrangement and method for the wireless transmission of phase-critical signals when the length of the transmission is variable

#172
20090279588
2009-11-12

Wireless communication apparatus and a reception method involving frequency hopping

#173
20090264090
2009-10-22

DC offset calibration in a direct conversion receiver

#174
20090262854
2009-10-22

Method for transmitting and receiving downlink control information

#175
20090219057
2009-09-03

Systems and methods for determining an out of band signal

#176
20090174456
2009-07-09

DC offset correcting device and DC offset correcting method

#177
20090160522
2009-06-25

DC RESTORATION CIRCUIT ALLOWING SPARSE DATA PATTERNS

#178
20090154599
2009-06-18

Apparatus and method for detecting communications from multiple sources

#179
20090147885
2009-06-11

Majority detector apparatus, systems, and methods

#180
20090086846
2009-04-02

Channel architecture with multiple signal processing branches for a given physical channel

#181
20090059782
2009-03-05

Method and apparatus for extending the transmission capability of twisted pair communication systems

#182
20090047029
2009-02-19

Waveform Shaping Apparatus, Receiver, Reception Module, and Remote Control Receiver

#183
20090044087
2009-02-12

Data slicer having an error correction device

#184
20090041161
2009-02-12

DC offset estimation system and method

#185
20090034650
2009-02-05

SEMICONDUCTOR INTEGRATED CIRCUIT AND METHOD FOR OPERATING ULTRA WIDE BAND-IMPULSE RADIO-TRANSMITTER

#186
20080298475
2008-12-04

Circuit and method for baseline wandering compensation

#187
20080240294
2008-10-02

Method and system for determining and removing DC offset in communication signals

#188
20080225984
2008-09-18

Digital polar transmitter

#189
20080224754
2008-09-18

High-speed serial link receiver with centrally controlled offset cancellation and method

#190
20080198949
2008-08-21

Receiver, wireless device and method for cancelling a DC offset component

#191
20080181334
2008-07-31

Receiver, wireless device and method for cancelling a DC offset component

#192
20080152036
2008-06-26

Transmission device

#193
20080111723
2008-05-15

DC offset correction apparatus and method

#194
20080102775
2008-05-01

Offset determination arrangement, offset compensation arrangement, synchronization clock generator, method for determination of an offset and modulation method

#195
20080063091
2008-03-13

AC coupling circuit integrated with receiver with hybrid stable common-mode voltage generation and baseline wander compensation

#196
20080043887
2008-02-21

Combined discrete automatic gain control (AGC) and DC estimation

#197
20080013654
2008-01-17

Multi-carrier receiver for wireless communication

#198
20080009250
2008-01-10

Wireless receiver for removing direct current offset component

#199
20070297536
2007-12-27

DC OFFSET REMOVAL APPARATUS AND DC OFFSET REMOVAL METHOD

#200
20070297530
2007-12-27

Transmission circuit and communication device

#201
20070280379
2007-12-06

Wireless receiver for removing direct current offset component

#202
20070237259
2007-10-11

Circuit for canceling DC offset in a communication system

#203
20070229334
2007-10-04

System and method for correcting DC offset

#204
20070201545
2007-08-30

Equalizer gain control system and method

#205
20070185949
2007-08-09

Demodulation of a multi-level quadrature amplitude modulation signal

#206
20070072568
2007-03-29

High speed receiver

#207
20070071144
2007-03-29

AC coupling bandwidth switch

#208
20070061682
2007-03-15

Non-causal channel equalization system

#209
20070058738
2007-03-15

Overlap-and-add with DC-offset correction

#210
20070055717
2007-03-08

Receiving module and receiver having the same

#211
20060269003
2006-11-30

Method and apparatus for frequency domain compensation of DC offset in an orthogonal frequency division multiplexing system

#212
20060229051
2006-10-12

Interference selection and cancellation for CDMA communications

#213
20060229044
2006-10-12

Combined discrete automatic gain control (AGC) and DC estimation

#214
20060227910
2006-10-12

Receiver DC offset correction

#215
20060215791
2006-09-28

Apparatus and method and decoding biphase signals

#216
20060215771
2006-09-28

Direct digital access arrangement circuitry and method for connecting to phone lines

#217
20060197575
2006-09-07

Baseline wandering correction device and method

#218
20060182197
2006-08-17

Blind RF carrier feedthrough suppression in a transmitter

#219
20060052062
2006-03-09

Maximum likelihood estimation of the channel coefficients and of the DC offset in a digital baseband signal of a radio receiver using the SAGE algorithm

#220
20050268166
2005-12-01

Circuit for detecting ground offset of parts of a network

#221
20050100104
2005-05-12

Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting

#222
20050036604
2005-02-17

Direct digital access arrangement circuitry and method for connecting DSL circuitry to phone lines

#223
20050013348
2005-01-20

Sub-optimal iterative receiver method and system for a high-bit-rate CDMA transmission system

#224
17478069
2022-11-15

Baseline wander cancelation

#225
15959199
2019-01-29

DC-coupled optical burst-mode receiver

#226
15881661
2019-06-18

System and method for reference noise compensation for single-ended serial links

#227
15692202
2018-07-31

Decision feedback equalizer with post-cursor non-linearity correction

#228
15475690
2018-05-15

Slicer and decision feedback equalization circuitry

#229
14834718
2016-11-01

Method and apparatus for signal detection and baseline wander cancellation

#230
14555035
2016-01-19

Transceiver circuitry with summation node common mode droop reduction

#231
14489814
2015-10-20

Reference voltage generation and calibration for single-ended signaling

#232
14321641
2015-10-20

Method for correcting DC characteristics in a magnetic recording system

#233
14316852
2015-08-11

Channel state information (CSI) estimation and applications for in-band on-channel radio receivers

#234
14252772
2016-12-27

Channel coding optimized for low-latency data

#235
14076929
2015-04-14

Post-distortion filter for reducing sensitivity to receiver nonlinearities

#236
13681192
2015-01-13

Bias current control for a radio frequency unit of a wireless network interface