ClassID:

219911

H03F2203/45212 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the differential amplifier being designed to have a reduced offset

Recent Application in this class:
#1
20260149265
2026-05-28

CURRENT PROTECTION SYSTEM

#2
20260106588
2026-04-16

SIGNAL PROCESSING CIRCUIT

#3
20240223144
2024-07-04

TWO-STAGE COMMON-MODE FEEDBACK CIRCUIT AND FULLY DIFFERENTIAL OPERATIONAL AMPLIFIER INCLUDING THE SAME

#4
20240221795
2024-07-04

DATA CONVERTER FOR CANCELLING OFFSET VOLTAGE

#5
20240219235
2024-07-04

OPTICAL SENSING MODULE, SYSTEM AND METHOD FOR OPERATING OPTICAL SENSING SYSTEM

#6
20240146270
2024-05-02

DIRECT CURRENT OFFSET CURRENT CANCELLATION CIRCUIT AND METHOD, RELATED DEVICE, AND SYSTEM

#7
20240097632
2024-03-21

INTEGRATED CIRCUIT AND SEMICONDUCTOR DEVICE

#8
20230412133
2023-12-21

AUTO-CALIBRATION SYSTEMS AND METHODS FOR REDUCING AMPLIFER OFFSET

#9
20230283252
2023-09-07

METHOD FOR COMPENSATING FOR AN INTERNAL VOLTAGE OFFSET BETWEEN TWO INPUTS OF AN AMPLIFIER

#10
20230163740
2023-05-25

Common mode correction using ADC in analog probe based receiver

#11
20230127206
2023-04-27

REGULATED SUPPLY FOR IMPROVED SINGLE-ENDED CHOPPING PERFORMANCE

#12
20230028576
2023-01-26

OFFSET CORRECTION CIRCUIT

#13
20220407481
2022-12-22

Devices and methods for offset cancellation

#14
20220123701
2022-04-21

Offset correction circuit

#15
20220085779
2022-03-17

Semiconductor integrated circuit, receiving device, and DC offset cancellation method

#16
20210313945
2021-10-07

Receiver for compensating common mode offset

#17
20210273620
2021-09-02

Compact offset drift trim implementation

#18
20210184640
2021-06-17

DECISION FEEDBACK EQUALIZER CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT THAT INCLUDES DECISION FEEDBACK EQUALIZER CIRCUIT

#19
20210067114
2021-03-04

Operational amplifier offset trim

#20
20210058046
2021-02-25

Hybrid autozeroing and chopping offset cancellation for switched-capacitor circuits

#21
20200328723
2020-10-15

Method for aliasing reduction in auto zero amplifier

#22
20200313638
2020-10-01

Receiver for compensating common mode offset

#23
20200280291
2020-09-03

Offset cancellation

#24
20200266787
2020-08-20

Amplifier, and receiving circuit, semiconductor apparatus and semiconductor system including the amplifier

#25
20200266781
2020-08-20

AMPLIFIER CIRCUIT, CORRESPONDING SYSTEM, VEHICLE AND METHOD

#26
20200162025
2020-05-21

Amplifier

#27
20200136577
2020-04-30

Operational amplifier offset trim

#28
20200133323
2020-04-30

Differential amplifier

#29
20200127623
2020-04-23

Auto-zero technique for opamps with a source-follower output stage based on replica referencing

#30
20200059200
2020-02-20

Amplifier offset cancellation using amplifier supply voltage

#31
20200052655
2020-02-13

Operational amplifier and control method thereof

#32
20200021248
2020-01-16

Common mode rejection including temperature drift correction

#33
20190158034
2019-05-23

Chopper amplifiers with high pass filter for suppressing chopping ripple

#34
20190132163
2019-05-02

DC offset cancellation and crosspoint control circuit

#35
20190123700
2019-04-25

Transmission device and transmission/reception system

#36
20190097593
2019-03-28

Offset cancellation scheme

#37
20190068176
2019-02-28

DC offset calibration circuit

#38
20190012979
2019-01-10

Semiconductor device, display device, and electronic device

#39
20180375502
2018-12-27

Method and apparatus for reducing impact of transistor random mismatch in circuits

#40
20180323759
2018-11-08

Galvanically isolated amplifiers and related methods

#41
20180316313
2018-11-01

Amplifier offset cancellation using amplifier supply voltage

#42
20180254752
2018-09-06

Reducing offset from an amplifier output without a low pass filter

#43
20180234763
2018-08-16

Microphone system having microphone transducer in feedback loop with adjustable frequency -3dB point and improved settling speed

#44
20180191307
2018-07-05

Charge-steering amplifier circuit and control method thereof

#45
20180145650
2018-05-24

Split cascode circuits and related communication receiver architectures

#46
20180131342
2018-05-10

Transmipedance amplifier circuit, related integrated circuit, receiver circuit and method of operating a transimpedance amplifier circuit

#47
20180131328
2018-05-10

Operational amplifier and method for reducing offset voltage of operational amplifier

#48
20180123525
2018-05-03

Differential amplifier

#49
20180123524
2018-05-03

Single-ended amplifier circuit with improved chopper configuration

#50
20180109326
2018-04-19

Optical receiver, active optical cable, and control method for optical receiver

#51
20180091103
2018-03-29

Ripple reduction method for chopper amplifiers

#52
20180034432
2018-02-01

Multi-data rate, burst-mode transimpedance amplifier (TIA) circuit

#53
20180019718
2018-01-18

Differential signal conditioner with common mode voltage error compensation

#54
20170310290
2017-10-26

Amplifiers

#55
20170272046
2017-09-21

Split cascode circuits and related communication receiver architectures

#56
20170272038
2017-09-21

Offset correction circuit and transconductance proportional current generation circuit

#57
20170263205
2017-09-14

Semiconductor device, display device, and electronic device

#58
20170254861
2017-09-07

Sensor device and semiconductor device

#59
20170207805
2017-07-20

High speed receivers circuits and methods

#60
20170067786
2017-03-09

Read circuit for POSFET type tactile sensor devices

#61
20170063469
2017-03-02

High bandwidth photodetector current replicator

#62
20170019080
2017-01-19

Gated CDS integrator

#63
20170012589
2017-01-12

Amplification circuit and method of compensating for voltage offset of inputs

#64
20160308566
2016-10-20

High speed receivers circuits and methods

#65
20160294332
2016-10-06

Gated CDS integrator

#66
20160285563
2016-09-29

Optical receiver, active optical cable, and control method for optical receiver

#67
20160269027
2016-09-15

Output buffer with offset cancellation structure and offset cancellation method using the same

#68
20160261246
2016-09-08

Transimpedance amplifier circuit

#69
20160261244
2016-09-08

Random chopper control circuit

#70
20160187385
2016-06-30

Amplification circuit and current sensor having the same

#71
20160173041
2016-06-16

Hot-swap current-sensing system

#72
20160118970
2016-04-28

Peak detector using charge pump and burst-mode transimpedance amplifier

#73
20160071453
2016-03-10

Differential amplifier and display driver including the same

#74
20160013769
2016-01-14

Auto correction driving device and wireless charger driving system using the same

#75
20150372652
2015-12-24

Multistage amplifier

#76
20150365051
2015-12-17

System and method for leakage current control for programmable gain amplifiers

#77
20150357980
2015-12-10

Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier

#78
20150303954
2015-10-22

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

#79
20150207497
2015-07-23

Low-offset bandgap circuit and offset-cancelling circuit therein

#80
20150188525
2015-07-02

DC offset cancellation circuit

#81
20150180431
2015-06-25

DC offset canceller

#82
20150171809
2015-06-18

MOS transistors having low offset values, electronic devices including the same, and methods of fabricating the same

#83
20150122035
2015-05-07

Detection device, sensor, electronic apparatus, and moving object

#84
20150122034
2015-05-07

Detection device, sensor, electronic apparatus, and moving object

#85
20150048882
2015-02-19

Apparatus and method for testing of successful operation of transimpedance amplifiers

#86
20140306759
2014-10-16

Semiconductor device

#87
20140266440
2014-09-18

Offset cancellation with minimum noise impact and gain-bandwidth degradation

#88
20130257536
2013-10-03

Offset reduction for analog front-ends

#89
20130208922
2013-08-15

Integrated amplifier for driving acoustic transducers

#90
20130137388
2013-05-30

Semiconductor integrated circuit and radio receiver

#91
20130136213
2013-05-30

Reception signal processing device

#92
20130127526
2013-05-23

Low noise auto-zero circuits for amplifiers

#93
20130113553
2013-05-09

Chopper

#94
20130082776
2013-04-04

Amplifier for receiving optical signals complementary to each other

#95
20130040586
2013-02-14

System and method for improving power efficiency of a transmitter

#96
20130009800
2013-01-10

Dual-mode comparator and analog to digital converter having the same

#97
20120313704
2012-12-13

Differential amplifier stage with integrated offset cancellation circuit

#98
20120206201
2012-08-16

Semiconductor device

#99
20120161991
2012-06-28

Offset cancellation for analog to digital converters

#100
20120068765
2012-03-22

Method for offset compensation of a switched-capacitor amplifier and switched capacitor amplifier arrangement

#101
20120001697
2012-01-05

Differential amplifier stage with integrated offset cancellation circuit

#102
20110316629
2011-12-29

Offset cancellation for differential circuits

#103
20110215870
2011-09-08

Burst mode amplifier

#104
20110169575
2011-07-14

Amplifier circuit and integrated circuit therefor

#105
20110140773
2011-06-16

Circuits and methods for calibrating offset in an amplifier

#106
20110121880
2011-05-26

DC offset cancellation circuit

#107
20110074503
2011-03-31

Operational amplifier

#108
20110063029
2011-03-17

Semiconductor integrated circuit

#109
20110057718
2011-03-10

Apparatus and method for offset drift trimming

#110
20110057704
2011-03-10

Method for detecting a current and compensating for an offset voltage and circuit

#111
20110019301
2011-01-27

Systems and methods for high order asymmetry correction

#112
20110018633
2011-01-27

Operational amplifier having DC offset cancellation capability

#113
20100327887
2010-12-30

Chopper-stabilized instrumentation amplifier for impedance measurement

#114
20100301917
2010-12-02

Level shift circuit

#115
20100289568
2010-11-18

Low-noise, low-power, low drift offset correction in operational and instrumentation amplifiers

#116
20100271130
2010-10-28

Amplifier circuit, integrated circuit device, and electronic instrument

#117
20100231297
2010-09-16

ELECTRONIC DEVICE FOR SELF OSCILLATING CLASS D SYSTEM

#118
20100202178
2010-08-12

Offset removal circuit, associative memory including the same, and offset voltage removal method

#119
20100182080
2010-07-22

DC-offset cancelled programmable gain array for low-voltage wireless LAN system and method using the same

#120
20100171554
2010-07-08

Offset cancellation for DC isolated nodes

#121
20100164626
2010-07-01

Boost operational amplifier

#122
20100156469
2010-06-24

High-speed multi-stage voltage comparator

#123
20100039175
2010-02-18

Driving amplifier circuit with digital control and DC offset equalization

#124
20100033240
2010-02-11

Chopper-stabilized instrumentation amplifier for impedance measurement

#125
20100007417
2010-01-14

Differential amplifier with symmetric circuit topology

#126
20090315549
2009-12-24

Method for processing sensor signals subject to an offset and sensor arrangement designed to carry out the method

#127
20090309653
2009-12-17

Chopper stabilized amplifier

#128
20090304092
2009-12-10

Low offset input circuit and transmission system with the input circuit

#129
20090289703
2009-11-26

Offset cancellation circuit and display device

#130
20090267687
2009-10-29

Chopper-stabilized amplifier and magnetic field sensor

#131
20090261904
2009-10-22

Multi-input operational amplifier and method for reducing input offset thereof

#132
20090232248
2009-09-17

DATA RECEIVING DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT INCLUDING SUCH DATA RECEIVING DEVICE

#133
20090224805
2009-09-10

Electronic circuit with compensation of intrinsic offset of differential pairs

#134
20090212868
2009-08-27

Low power comsumption, low noise and high power gain distributed amplifiers for communication systems

#135
20090212860
2009-08-27

Integrated circuit device and electronic instrument

#136
20090212830
2009-08-27

Buffer device for switched capacitance circuit

#137
20090195433
2009-08-06

Multistage amplifier and a method of settling the multistage amplifier

#138
20090179699
2009-07-16

Fully differential comparator and fully differential amplifier

#139
20090167577
2009-07-02

Circuit and method for calibrating direct current offset

#140
20090167437
2009-07-02

Common mode feedback circuit supporting dual data rate, programmable gain amplifier having the same, and image sensor having the programmable gain amplifier

#141
20090167402
2009-07-02

Dual barrel receiver equalization architecture

#142
20090140802
2009-06-04

Semiconductor integrated circuit

#143
20090137220
2009-05-28

Variable gain amplifier and receiver including the same

#144
20090128238
2009-05-21

Offset cancellation of a single-ended operational amplifier

#145
20090128194
2009-05-21

Method and device for adjusting or setting an electronic device

#146
20090108929
2009-04-30

Apparatuses and methods for providing offset compensation for operational amplifier

#147
20090096523
2009-04-16

Differential amplification circuit

#148
20090085632
2009-04-02

Low-offset input circuit including amplifier circuit to correct circuit characteristics to cancel offset of the input circuit

#149
20090079502
2009-03-26

Differential circuit providing a function to cancel input offset voltage

#150
20090067545
2009-03-12

Receiver of high speed digital interface

#151
20090066419
2009-03-12

Variable gain amplifier circuits

#152
20090058526
2009-03-05

Common mode feedback amplifier with switched differential capacitor

#153
20090033370
2009-02-05

Comparator with low supply current spike and input offset cancellation

#154
20090015328
2009-01-15

Low offset envelope detector and method of use

#155
20090009239
2009-01-08

Low glitch offset correction circuit for auto-zero sensor amplifiers and method

#156
20080303577
2008-12-11

Arrangement for canceling offset of driver amplifier circuitry

#157
20080246544
2008-10-09

Offset adjustment device, semiconductor device, display device, offset adjustment method, noise detection device, and noise detection method

#158
20080238547
2008-10-02

Offset canceling circuit and offset canceling method

#159
20080238539
2008-10-02

Arrangement for canceling offset of an operational amplifier

#160
20080204138
2008-08-28

Fully differential amplifier with continuous-time offset reduction

#161
20080197928
2008-08-21

Threshold voltage compensation for a two stage amplifier

#162
20080197887
2008-08-21

High speed comparator circuit with offset cancellation

#163
20080186098
2008-08-07

Circuit to prevent load-induced DC nonlinearity in an op-amp

#164
20080186091
2008-08-07

Dual transconductance amplifiers and differential amplifiers implemented using such dual transconductance amplifiers

#165
20080183098
2008-07-31

Chopper-stabilized instrumentation amplifier for impedance measurement

#166
20080143439
2008-06-19

Fully-differential amplifier

#167
20080122536
2008-05-29

Three-stage amplifier

#168
20080111618
2008-05-15

DC offset cancellation circuit

#169
20080106330
2008-05-08

Feedback amplifier circuit operable at low voltage by utilizing switched operational amplifier and chopper modulator

#170
20080100380
2008-05-01

Operational amplifier and display device

#171
20080077347
2008-03-27

Offset compensation for rail-to-rail avereraging circuit

#172
20080074405
2008-03-27

Operational amplifier and method of driving liquid crystal display

#173
20080074198
2008-03-27

Photoreceiver/amplifier circuit, optical pickup device, and optical disk device

#174
20080074197
2008-03-27

Circuit for providing a signal boost

#175
20080061840
2008-03-13

Receiver circuit having compensated offset voltage

#176
20080054999
2008-03-06

Input offset voltage corrector

#177
20080048779
2008-02-28

ACTIVE EMI SUPPRESSION CIRCUIT

#178
20080048773
2008-02-28

Method and apparatus for DC offset cancellation in amplifiers

#179
20080030240
2008-02-07

LOW SYSTEMATIC OFFSET, TEMPERATURE INDEPENDENT VOLTAGE BUFFERING

#180
20070296496
2007-12-27

Apparatus for reducing offset voltage drifts in a charge amplifier circuit

#181
20070273443
2007-11-29

Operational amplifier circuit

#182
20070260150
2007-11-08

Biomedical signal instrumentation amplifier

#183
20070257734
2007-11-08

Balanced output circuit and electronic apparatus utilizing the same

#184
20070257733
2007-11-08

AMPLIFIER SYSTEM WITH CURRENT-MODE SERVO FEEDBACK

#185
20070247218
2007-10-25

DC offset cancellation apparatus

#186
20070241819
2007-10-18

Low-Offset, Wide Common Mode Range, Cascoded-Gain Single Stage Amplifier

#187
20070241818
2007-10-18

Class AB folded cascode stage and method for low noise, low power, low-offset operational amplifier

#188
20070241813
2007-10-18

Amplifier circuit with automatic gain correction

#189
20070236289
2007-10-11

Differential amplifier, digital-to-analog converter and display device

#190
20070229156
2007-10-04

Class AB folded cascode stage and method for low noise, low power, low-offset operational amplifier

#191
20070222509
2007-09-27

Amplifier circuit

#192
20070222506
2007-09-27

Op driver with the function of canceling op offset

#193
20070222484
2007-09-27

Input buffer

#194
20070200620
2007-08-30

Offset cancellation amplifier, display employing the offset cancellation amplifier and method for controlling the offset cancellation amplifier

#195
20070194844
2007-08-23

Switched capacitor amplifier circuit and method for operating a switched capacitor amplifier circuit

#196
20070170981
2007-07-26

Notch filter for ripple reduction in chopper stabilized amplifiers

#197
20070170946
2007-07-26

Pilot signal detection circuit and semiconductor integrated circuit equipping the circuit

#198
20070153945
2007-07-05

DC offset correction for high gain complex filter

#199
20070146073
2007-06-28

Differential circuit with offset control

#200
20070126499
2007-06-07

Multi-phase techniques for tuning and/or measuring operations of an amplifier

#201
20070115047
2007-05-24

Differential amplifier arrangement

#202
20070109043
2007-05-17

Operational amplifier with zero offset

#203
20070070536
2007-03-29

Apparatus and method for controlling common mode voltage of a disk drive write head

#204
20070058438
2007-03-15

Differential amplifier circuit and semiconductor device

#205
20070013439
2007-01-18

Circuit arrangement having an amplifier arrangement and an offset compensation arrangement

#206
20070008035
2007-01-11

Wide-band high-gain limiting amplifier with parallel resistor-transistor source loads

#207
20070008020
2007-01-11

Output buffer circuit

#208
20070002912
2007-01-04

Laser power control circuit

#209
20060290408
2006-12-28

Temperature compensation circuit

#210
20060284671
2006-12-21

Variable gain amplifier circuit, method of correcting DC offset of the variable gain amplifying circuit, and radio receiving apparatus

#211
20060226877
2006-10-12

Operational amplifier with less offset

#212
20050271162
2005-12-08

Techniques to adjust vertical offset

#213
20050218980
2005-10-06

Differential stage voltage offset trim circuitry

#214
20050140423
2005-06-30

CMOS exponential function generating circuit with temperature compensation technique

#215
20050118980
2005-06-02

Variable rate RC calibration circuit with filter cut-off frequency programmability

#216
20050116773
2005-06-02

Amplifier system with current-mode servo feedback

#217
16519105
2020-08-11

Autozero to an offset value for a slope detector for voltage droop monitoring

#218
16262487
2020-06-16

Reconfigurable analog filter with offset compensation

#219
15854135
2019-03-05

Peak detector and operational amplifier circuit therein

#220
15299527
2018-02-13

Offset calibration circuit and method for an amplifier circuit

#221
15165809
2018-03-06

Filter-less chopping for offset cancellation

#222
15152206
2017-01-10

Differential amplifier circuit and semiconductor memory device including same

#223
14702586
2016-07-26

Apparatus and method for improving power supply rejection ratio