ClassID:

220003

H03F2203/45396 - 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 AAC comprising one or more switches

Recent Application in this class:
#1
20230028576
2023-01-26

OFFSET CORRECTION CIRCUIT

#2
20220123701
2022-04-21

Offset correction circuit

#3
20200373889
2020-11-26

Programmable amplifiers

#4
20200209977
2020-07-02

Programmable filter in an amplifier

#5
20190173437
2019-06-06

Programmable filter in an amplifier

#6
20190140655
2019-05-09

Multiplying digital-to-analog conversion circuit

#7
20190097583
2019-03-28

Amplifier configuration for load-line enhancement

#8
20190068130
2019-02-28

Dynamic amplification circuit

#9
20180083580
2018-03-22

Programmable filter in an amplifier

#10
20170338894
2017-11-23

Track and hold amplifiers

#11
20160238446
2016-08-18

Detection device having a photodetector connected to a terminal of an amplifier so as to reverse bias the photodetector

#12
20160056766
2016-02-25

Fast recovery scheme of transconductance gain for folded cascode amplifier

#13
20150381115
2015-12-31

Emphasis circuit

#14
20150349795
2015-12-03

Common mode sampling mechanism for residue amplifier in switched current pipeline analog-to-digital converters

#15
20150146884
2015-05-28

Circuit for suppressing audio output noise and audio output circuit

#16
20150084688
2015-03-26

Baseband processing circuitry

#17
20150071466
2015-03-12

Read-out for MEMS capacitive transducers

#18
20150022268
2015-01-22

DC offset cancellation circuit

#19
20140312971
2014-10-23

Differential amplifier circuit

#20
20140253193
2014-09-11

Differential amplifiers, clock generator circuits, delay lines and methods

#21
20140035671
2014-02-06

Sense amplifier and electronic apparatus using the same

#22
20130113564
2013-05-09

Fast settling low power low noise amplifier

#23
20130113563
2013-05-09

Gain enhancement for cascode structure

#24
20130033321
2013-02-07

High efficiency power amplifier

#25
20120274403
2012-11-01

Amplifier with integrated filter

#26
20120264391
2012-10-18

RF-demodulator, calibration circuitry and methods for calibrating an RF-demodulator

#27
20120133437
2012-05-31

Sense amplifier and electronic apparatus using the same

#28
20120133430
2012-05-31

Offset cancellation for audio amplifier

#29
20120126894
2012-05-24

Differential amplifier

#30
20120086488
2012-04-12

Differential amplifiers, clock generator circuits, delay lines and methods

#31
20120064836
2012-03-15

Amplifier circuit for a ranging transceiver

#32
20120063545
2012-03-15

Method and system for enhancing efficiency by modulating power amplifier gain

#33
20110102085
2011-05-05

Differential amplifier

#34
20110043254
2011-02-24

Sense amplifier and electronic apparatus using the same

#35
20110025655
2011-02-03

OPERATIONAL AMPLIFIER AND SEMICONDUCTOR DEVICE USING THE SAME

#36
20110025416
2011-02-03

Differential amplifier

#37
20100328542
2010-12-30

Low-noise amplifier suitable for use in a television receiver

#38
20100327975
2010-12-30

Signal amplifier

#39
20100327887
2010-12-30

Chopper-stabilized instrumentation amplifier for impedance measurement

#40
20100237949
2010-09-23

Method and system for enhancing efficiency by modulating power amplifier gain

#41
20100182087
2010-07-22

Anti-pop method and apparatus for class AB amplifiers

#42
20100176849
2010-07-15

Closed loop surge protection technique for differential amplifiers

#43
20100164589
2010-07-01

Operational amplifier

#44
20100156683
2010-06-24

Amplifier circuit and A/D converter

#45
20100109780
2010-05-06

Flexible dynamic range amplifier

#46
20100041361
2010-02-18

Method and system for a single-ended input low noise amplifier with differential output

#47
20100033240
2010-02-11

Chopper-stabilized instrumentation amplifier for impedance measurement

#48
20090289930
2009-11-26

Operational amplifier circuit and display panel driving apparatus

#49
20090289721
2009-11-26

Circuits, processes, devices and systems for full integration of RF front end module including RF power amplifier

#50
20090284284
2009-11-19

Sense amplifier and electronic apparatus using the same

#51
20090278602
2009-11-12

Closed loop surge protection technique for differential amplifiers

#52
20090267696
2009-10-29

High slew rate amplifier, analog-to-digital converter using same, CMOS imager using the analog-to-digital converter and related methods

#53
20090256636
2009-10-15

Amplifier arrangement and method for signal amplification

#54
20090219085
2009-09-03

Differential to single-ended conversion circuit and comparator using the circuit

#55
20090207939
2009-08-20

System and method for burst mode amplifier

#56
20090195310
2009-08-06

LNA having a post-distortion mode and a high-gain mode

#57
20090153250
2009-06-18

METHOD AND SYSTEM FOR SCALING SUPPLY, DEVICE SIZE, AND LOAD OF A POWER AMPLIFIER

#58
20090153244
2009-06-18

Low noise and low input capacitance differential MDS LNA

#59
20090108935
2009-04-30

Variable gain amplifier including series-coupled cascode amplifiers

#60
20090102558
2009-04-23

Operational amplifier

#61
20090085671
2009-04-02

Load inductor sharing

#62
20090085668
2009-04-02

Inductor sharing in radio frequency communications

#63
20090040796
2009-02-12

Bipolar transistor drivers

#64
20090040165
2009-02-12

Amplifying circuit and display unit

#65
20090033370
2009-02-05

Comparator with low supply current spike and input offset cancellation

#66
20090015451
2009-01-15

Flash A/D converter

#67
20080315950
2008-12-25

Integrated Circuit Amplifiers Having Switch Circuits Therein that Provide Reduced 1/f Noise

#68
20080290943
2008-11-27

Multi-mode amplifier arrangement and method for controlling an amplifier arrangement

#69
20080252379
2008-10-16

High slew rate amplifier, analog-to-digital converter using same, CMOS imager using the analog-to-digital converter and related methods

#70
20080238539
2008-10-02

Arrangement for canceling offset of an operational amplifier

#71
20080218241
2008-09-11

DIFFERENTIAL OUTPUT CIRCUIT WITH REDUCED DIFFERENTIAL OUTPUT VARIATION

#72
20080204148
2008-08-28

Amplifier with integrated filter

#73
20080183098
2008-07-31

Chopper-stabilized instrumentation amplifier for impedance measurement

#74
20080137773
2008-06-12

Method and system for enhancing efficiency by modulating power amplifier gain

#75
20080129345
2008-06-05

Low-voltage, low-power-consumption, and high-speed differential current-sense amplification

#76
20080116976
2008-05-22

Low noise amplifier with multiple inputs and multiple outputs

#77
20080106337
2008-05-08

Bias current compensation circuit for a differential input stage

#78
20080079474
2008-04-03

Signal conditioning circuit, a comparator including such a conditioning circuit and a successive approximation converter including such a circuit

#79
20080057883
2008-03-06

Power control for a dual mode transmitter

#80
20080036535
2008-02-14

Amplifying circuit of semiconductor integrated circuit

#81
20070222506
2007-09-27

Op driver with the function of canceling op offset

#82
20070217544
2007-09-20

Power management in a data acquisition system

#83
20070210870
2007-09-13

Transconductance stage providing gain control

#84
20070210868
2007-09-13

Differential output circuit with reduced differential output variation

#85
20070132511
2007-06-14

Amplifier and amplifier gain adjustment circuitry using current steering, and multimode communication device containing same

#86
20070115058
2007-05-24

Variable gain amplifier having linear-in-decibel transconductance

#87
20070115049
2007-05-24

Operational amplifier and related noise separation method thereof

#88
20070090876
2007-04-26

Apparatus for variable gain amplifiers and mixers

#89
20060255837
2006-11-16

Sense amplifier and electronic apparatus using the same

#90
20060238243
2006-10-26

Differential amplifier, data driver and display

#91
20060238242
2006-10-26

Differential amplifier and data driver for display

#92
20060220736
2006-10-05

Low noise amplifier and differential amplifier with variable gain mode

#93
20060097787
2006-05-11

Gain adjusting and circuit arrangement

#94
20060071712
2006-04-06

Variable gain amplifier

#95
20060028301
2006-02-09

Discrete inductor bank and LC filter

#96
20050264376
2005-12-01

Methods and apparatus for an improved discrete LC filter

#97
20050231282
2005-10-20

Differential output circuit with reduced differential output variation

#98
20050195035
2005-09-08

Variable gain amplifier having linear-in-decibel transconductance

#99
20050073357
2005-04-07

Automatically adjusting low noise amplifier

#100
20050068106
2005-03-31

Low-noise amplifying circuit

#101
20050035820
2005-02-17

Switchable operational amplifier circuit

#102
20050012565
2005-01-20

Methods and apparatus for an improved discrete LC filter

#103
20050007156
2005-01-13

Sense amplifier and electronic apparatus using the same