ClassID:

219452

H03F3/45744 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction

Sub-classes:
Recent Application in this class:
#1
20250274090
2025-08-28

AMPLIIFIER WITH COMMON MODE GAIN REDUCTION

#2
20250088157
2025-03-13

SEMICONDUCTOR DEVICE

#3
20250055431
2025-02-13

OFFSET CALIBRATION FOR SIGNAL RMS MEASUREMENT

#4
20250038718
2025-01-30

ANALOG FRONT-END CIRCUIT AND OFFSET VOLTAGE CORRECTION METHOD THEREOF

#5
20240243712
2024-07-18

MOS DIFFERENTIAL PAIR

#6
20240039496
2024-02-01

CIRCUIT FOR REMOVING OFFSET OUTPUT VOLTAGE, AND ELECTRONIC DEVICE COMPRISING SAME

#7
20230268898
2023-08-24

HIGH-LINEARITY DYNAMIC AMPLIFIER

#8
20230145662
2023-05-11

Differential amplifier, semiconductor device and offset cancellation method

#9
20210303017
2021-09-30

Operational amplifier, integrated circuit, and method for operating the same

#10
20210091736
2021-03-25

Amplifier device and offset cancellation method

#11
20210018373
2021-01-21

Amplifier capable of cancelling offset and sensor capable of cancelling offset component

#12
20200083854
2020-03-12

Programmable continuous time linear equalizer having stabilized high-frequency peaking for controlling operating current of a slicer

#13
20190363678
2019-11-28

Amplifier circuitry, voltage regulator circuit, and signal compensation method

#14
20190288656
2019-09-19

Chopper stabilized amplifier

#15
20190007000
2019-01-03

Amplifier circuit

#16
20170302238
2017-10-19

DC offset cancellation circuit

#17
20170230019
2017-08-10

High dynamic range sensing front-end for neural signal recording systems

#18
20170111018
2017-04-20

Chopper stabilized amplifier

#19
20170095178
2017-04-06

EMG Home Trainer

#20
20170067786
2017-03-09

Read circuit for POSFET type tactile sensor devices

#21
20160269027
2016-09-15

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

#22
20160261246
2016-09-08

Transimpedance amplifier circuit

#23
20160261244
2016-09-08

Random chopper control circuit

#24
20160164467
2016-06-09

Amplifying device and offset voltage correction method

#25
20140306759
2014-10-16

Semiconductor device

#26
20130342275
2013-12-26

Transimpedance amplifier

#27
20130127526
2013-05-23

Low noise auto-zero circuits for amplifiers

#28
20130040586
2013-02-14

System and method for improving power efficiency of a transmitter

#29
20130009800
2013-01-10

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

#30
20130002355
2013-01-03

DIFFERENTIAL AMPLIFIER AND COMPARATOR

#31
20120313704
2012-12-13

Differential amplifier stage with integrated offset cancellation circuit

#32
20120153991
2012-06-21

Comparator with offset compensation and improved dynamic range

#33
20120133430
2012-05-31

Offset cancellation for audio amplifier

#34
20120001697
2012-01-05

Differential amplifier stage with integrated offset cancellation circuit

#35
20110278437
2011-11-17

Optical receiving circuit

#36
20110199129
2011-08-18

Line driver with reduced dependency on process, voltage, and temperature

#37
20100327887
2010-12-30

Chopper-stabilized instrumentation amplifier for impedance measurement

#38
20100225362
2010-09-09

Reduced line driver output dependency on process, voltage, and temperature variations

#39
20100182080
2010-07-22

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

#40
20100176879
2010-07-15

Method and device for performing offset cancellation in an amplifier using floating-gate transistors

#41
20100164589
2010-07-01

Operational amplifier

#42
20100033240
2010-02-11

Chopper-stabilized instrumentation amplifier for impedance measurement

#43
20090315549
2009-12-24

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

#44
20090243663
2009-10-01

Analog comparator comprising a digital offset compensation

#45
20090232248
2009-09-17

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

#46
20090167402
2009-07-02

Dual barrel receiver equalization architecture

#47
20090146722
2009-06-11

Systems and Arrangements to Provide Input Offset Voltage Compensation

#48
20090128238
2009-05-21

Offset cancellation of a single-ended operational amplifier

#49
20090085632
2009-04-02

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

#50
20090058529
2009-03-05

Resistively loaded single stage differential amplifier having zero volt common mode input

#51
20080303577
2008-12-11

Arrangement for canceling offset of driver amplifier circuitry

#52
20080278141
2008-11-13

RF power sensing circuit

#53
20080238539
2008-10-02

Arrangement for canceling offset of an operational amplifier

#54
20080211705
2008-09-04

Electronic network circuit with dissymmetrical differential pairs

#55
20080204567
2008-08-28

SAMPLE AND HOLD CIRCUITS WITH BUFFER OFFSET REMOVED

#56
20080183098
2008-07-31

Chopper-stabilized instrumentation amplifier for impedance measurement

#57
20080157846
2008-07-03

DC offset calibration apparatus and method

#58
20080122536
2008-05-29

Three-stage amplifier

#59
20080074405
2008-03-27

Operational amplifier and method of driving liquid crystal display

#60
20080030240
2008-02-07

LOW SYSTEMATIC OFFSET, TEMPERATURE INDEPENDENT VOLTAGE BUFFERING

#61
20070273443
2007-11-29

Operational amplifier circuit

#62
20070241819
2007-10-18

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

#63
20070236289
2007-10-11

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

#64
20070236285
2007-10-11

Full swing amplifying circuit and applications thereof

#65
20070222516
2007-09-27

Differential amplifier and methods for use therewith

#66
20070222506
2007-09-27

Op driver with the function of canceling op offset

#67
20070222484
2007-09-27

Input buffer

#68
20070210860
2007-09-13

Method and device for performing offset cancellation in an amplifier using floating-gate transistors

#69
20070188223
2007-08-16

Operational amplifier

#70
20070159249
2007-07-12

Differential amplifier and display device using the same

#71
20070146073
2007-06-28

Differential circuit with offset control

#72
20070139116
2007-06-21

Fully differential amplifier with continuous-time offset reduction

#73
20070115048
2007-05-24

Equalizers and offset control

#74
20070109043
2007-05-17

Operational amplifier with zero offset

#75
20070096818
2007-05-03

Variable-gain amplifier and related method

#76
20070096815
2007-05-03

Analog preamplifier calibration

#77
20070090873
2007-04-26

Offset canceller for compensating for offset in signal output

#78
20070069817
2007-03-29

Adaptable voltage control for a variable gain amplifier

#79
20070013439
2007-01-18

Circuit arrangement having an amplifier arrangement and an offset compensation arrangement

#80
20060279509
2006-12-14

Operational amplifier with constant offset and apparatus comprising such as operational amplifier

#81
20060226877
2006-10-12

Operational amplifier with less offset

#82
20060214731
2006-09-28

Differential two-stage miller compensated amplifier system with capacitive level shifting

#83
20060214689
2006-09-28

Differential output driver and semiconductor device having the same

#84
20060208792
2006-09-21

Amplification system capable of reducing DC offset

#85
20060186960
2006-08-24

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#86
20060125563
2006-06-15

Method for forming elements with reduced variation

#87
20060097791
2006-05-11

Low offset rail-to-rail operational amplifier

#88
20060038615
2006-02-23

Differential structure programmable gain instrumentation amplifier

#89
20060028270
2006-02-09

Adaptable voltage control for a variable gain amplifier

#90
20050285678
2005-12-29

Differential amplifier with adaptive biasing and offset cancellation

#91
20050275460
2005-12-15

Current-mode instrumentation amplifier

#92
20050275453
2005-12-15

Current-mode instrumentation amplifier gain error correction circuitry

#93
20050275452
2005-12-15

Precision chopper-stabilized current mirror

#94
20050258900
2005-11-24

Adaptable voltage control for a variable gain amplifier

#95
20050218980
2005-10-06

Differential stage voltage offset trim circuitry

#96
20050212597
2005-09-29

Amplifier circuit and display device

#97
20050200417
2005-09-15

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#98
20050200416
2005-09-15

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#99
20050200415
2005-09-15

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#100
20050200402
2005-09-15

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#101
20050184801
2005-08-25

Correcting DC offsets in a multi-stage amplifier

#102
20050162233
2005-07-28

Analog to digital converter using analog-valued floating-gate transistors

#103
20050140449
2005-06-30

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#104
20050140448
2005-06-30

Use of analog-valued floating-gate transistors for parallel and serial signal processing

#105
20050083101
2005-04-21

Small-amplitude differential interface circuit

#106
20050052243
2005-03-10

Temperature-stabilized amplifier circuit

#107
20050052233
2005-03-10

Controlled offset amplifier