H03F2200/264 - CPC Classification Index

#1

20260155785

2026-06-04

HIGH PERFORMANCE CMOS SHOOTING INTEGRATOR

#2

20260113004

2026-04-23

CLASS D AMPLIFIER WITH CURRENT MODE CONTROL

#3

20260066857

2026-03-05

METHODS AND APPARATUS TO REGULATE AN AMPLIFIER

#4

20250392274

2025-12-25

TWO-STAGE OPERATIONAL AMPLIFIER AND OPTICAL SENSOR

#5

20250392259

2025-12-25

OPERATIONAL AMPLIFIER AND CURRENT INTEGRATOR USING THE SAME

#6

20250279757

2025-09-04

SWITCHED CAPACITOR CIRCUIT

#7

20240250651

2024-07-25

ANALOG-DIGITAL HYBRID INTEGRATOR CIRCUIT

#8

20230268891

2023-08-24

PROTECTING A CIRCUIT FROM AN INPUT VOLTAGE

#9

20230131342

2023-04-27

Acoustic processing apparatus

#10

20220123696

2022-04-21

Digital signal generator for audio artefact reduction

#11

20220115997

2022-04-14

Audio circuit, electronic device and vehicle audio system with the audio circuit

#12

20210218372

2021-07-15

Method for amplifier load current cancellation in a current integrator and current integrator with amplifier load current cancellation

#13

20210072087

2021-03-11

High dynamic device for integrating an electric current

#14

20210044265

2021-02-11

Distortion reducing variable output impedance class-D amplifier

#15

20210044264

2021-02-11

Class-D amplifier with multiple power rails and quantizer that switches used ramp amplitude concurrently with switch in used power rail

#16

20200153399

2020-05-14

Auto zero offset current mitigation at an integrator input

#17

20200091953

2020-03-19

Inrush current limiter circuits having current regulating switches therein

#18

20190363682

2019-11-28

Integration circuit and method for providing an output signal

#19

20190296696

2019-09-26

Digital amplifier and output device

#20

20190199390

2019-06-27

Base station antennas having transmitters and receivers therein that support time division duplexing (TDD) with enhanced bias control for high speed switching

#21

20190149107

2019-05-16

Low power dissipation high performance Class-D amplifier

#22

20190149101

2019-05-16

Class-D amplifier with multiple independent output stages

#23

20190131462

2019-05-02

Pseudo-resistor structure, a closed-loop operational amplifier circuit and a bio-potential sensor

#24

20190115886

2019-04-18

Calibration of a dual-path pulse width modulation system

#25

20190027229

2019-01-24

Correlated double sampling integrating circuit

#26

20190013819

2019-01-10

Digital-to-analog converter circuit, corresponding device and method

#27

20190006998

2019-01-03

Amplifier arrangement and switched capacitor integrator

#28

20180375481

2018-12-27

I—V conversion module

#29

20180358941

2018-12-13

Capacitive loading mode measurement circuit with compensation of measurement errors due to parasitic sensor impedances

#30

20180351516

2018-12-06

Audio amplifiers

#31

20180337644

2018-11-22

Amplifier error current based on multiple integrators

#32

20180254745

2018-09-06

Stacked power amplifier power control

#33

20180013410

2018-01-11

Window function processing module

#34

20170360315

2017-12-21

Conversion circuit and detection circuit

#35

20170359078

2017-12-14

Low-power conversion between analog and digital signals using adjustable feedback filter

#36

20170288785

2017-10-05

Linear isolation amplifier with output DC voltage cancellation

#37

20170207761

2017-07-20

Low noise amplifier circuit

#38

20170111015

2017-04-20

High dynamic range device for integrating an electrical current

#39

20170077938

2017-03-16

Low-power conversion between analog and digital signals using adjustable feedback filter

#40

20170019080

2017-01-19

Gated CDS integrator

#41

20160299519

2016-10-13

Zero drift, limitless and adjustable reference voltage generation

#42

20160294332

2016-10-06

Gated CDS integrator

#43

20160268984

2016-09-15

Quaternary/ternary modulation selecting circuit and associated method

#44

20160233840

2016-08-11

Sensor control circuit and electronic apparatus

#45

20160226451

2016-08-04

Circuits and methods for switched-mode operational amplifiers

#46

20160028355

2016-01-28

Dynamic current source for amplifier integrator stages

#47

20150357980

2015-12-10

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

#48

20130038393

2013-02-14

Amplifier circuit, integrating circuit, and light-detection device

#49

20130009711

2013-01-10

Read out integrated circuit

#50

20120313703

2012-12-13

Restoring output common-mode of amplifier via capacitive coupling

#51

20120293233

2012-11-22

Broadband analog radio-frequency integrator

#52

20120147922

2012-06-14

Sensor device

#53

20120146727

2012-06-14

Fast power up comparator

#54

20110080220

2011-04-07

Temperature compensated integrator

#55

20110068864

2011-03-24

Self oscillating class D amplification device

#56

20110026180

2011-02-03

Integrator and circuit-breaker having an integrator

#57

20100176881

2010-07-15

Pulse width modulation circuit and class-D amplifier comprising the PWM circuit

#58

20100171549

2010-07-08

Variable gain amplifier circuit and filter circuit

#59

20100052783

2010-03-04

Class-D amplifier

#60

20090085641

2009-04-02

Circuit and method for integrating a voltage signal

#61

20080197924

2008-08-21

Variable gain amplifier circuit and filter circuit

#62

20080150628

2008-06-26

Low distortion class-D amplifier

#63

20080100373

2008-05-01

Bandwidth calibration of active filter

#64

20080079474

2008-04-03

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

#65

20080024209

2008-01-31

Integrator and error amplifier

#66

20070290726

2007-12-20

Driving device and driving method

#67

20070285166

2007-12-13

Fully differential sensing apparatus and input common-mode feedback circuit thereof

#68

20070241818

2007-10-18

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

#69

20070228988

2007-10-04

Vacuum tube circuit

#70

20070222510

2007-09-27

System and method for operating a feedback network

#71

20070216474

2007-09-20

Filter circuit

#72

20070200621

2007-08-30

PWM digital amplifier with high-order loop filter

#73

20070115049

2007-05-24

Operational amplifier and related noise separation method thereof

#74

20070075768

2007-04-05

Circuit configuration having a feedback operational amplifier

#75

20070057727

2007-03-15

Differential operational amplifier

#76

20070024355

2007-02-01

PWM digital amplifier with high-order loop filter

#77

20070024354

2007-02-01

PWM digital amplifier with high-order loop filter

#78

20060181438

2006-08-17

PWM DIGITAL AMPLIFIER WITH HIGH-ORDER LOOP FILTER

#79

20060181341

2006-08-17

PWM digital amplifier with high-order loop filter

#80

20060158247

2006-07-20

PWM digital amplifier with high-order loop filter

#81

20060158246

2006-07-20

PWM digital amplifier with high-order loop filter

#82

20060012432

2006-01-19

Pulse length matched filter

#83

20050254573

2005-11-17

Method and apparatus having a digital PWM signal generator with integral noise shaping

#84

16526439

2020-08-04

Switching scheme for low offset switched-capacitor integrators

#85

16142498

2019-11-12

Cross-fading in dual-path pulse width modulation system

#86

14626417

2016-04-05

Reconfigurable intergrator/differentiator circuit based on current follower