ClassID:

219540 āŽ˜

H03F2200/156 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers One or more switches are realised in the feedback circuit of the amplifier stage

Recent Application in this class:
#1
20260031765
2026-01-29

MULTI-INPUT RF LNA WITH UNIFIED FEEDBACK PATH AND PASSIVE GAIN PATH SYSTEMS AND METHODS

#2
20250044585
2025-02-06

PHOTOSENSITIVE SYSTEM, DISPLAY APPARATUS AND METHOD FOR DETERMINING POSITION OF HUMAN EYE

#3
20240235569
2024-07-11

Low-noise switched-capacitor circuit

#4
20240180458
2024-06-06

CONTINUOUS ELECTROCHEMICAL MONITORING

#5
20240171145
2024-05-23

Tunable Effective Inductance for Multi-Gain LNA with Inductive Source Degeneration

#6
20240146272
2024-05-02

Optimized Multi Gain LNA Enabling Low Current and High Linearity Including Highly Linear Active Bypass

#7
20240088843
2024-03-14

CLASS-D AMPLIFIER WITH NESTED FEEDBACK LOOPS

#8
20230378968
2023-11-23

Low-noise switched-capacitor circuit

#9
20230318549
2023-10-05

HIGH IMPEDANCE AND COMPACT NEURAL SENSOR FRONT-END

#10
20230163729
2023-05-25

Method and system for process and temperature compensation in a transimpedance amplifier using a dual replica

#11
20230036535
2023-02-02

Current-mode circuits and calibration thereof

#12
20220376660
2022-11-24

ELECTRICAL CIRCUIT

#13
20220368339
2022-11-17

LOW-NOISE SWITCHED-CAPACITOR CIRCUIT

#14
20220231648
2022-07-21

Tunable effective inductance for multi-gain LNA with inductive source degeneration

#15
20220173708
2022-06-02

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#16
20220124890
2022-04-21

Transconductance circuits and methods

#17
20220052704
2022-02-17

Low-noise switched-capacitor circuit

#18
20220045656
2022-02-10

Class-D amplifier with nested feedback loops

#19
20210408975
2021-12-30

Switched-capacitor amplifier circuit

#20
20210265959
2021-08-26

Low pop-click noise class-D amplifier

#21
20210251061
2021-08-12

Transconductance circuits and methods

#22
20210249998
2021-08-12

Dynamic stability control in amplifier driving high Q load

#23
20210211109
2021-07-08

Amplifier with adaptively-controlled local feedback loop

#24
20210203291
2021-07-01

Current integrator for OLED panel

#25
20210048453
2021-02-18

Shunt resistor averaging techniques

#26
20210028748
2021-01-28

Method and system for process and temperature compensation in a transimpedance amplifier using a dual replica

#27
20200403578
2020-12-24

Amplifier configurable into multiple modes

#28
20200328724
2020-10-15

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#29
20200266782
2020-08-20

Method of forming a semiconductor device and structure therefor

#30
20200264039
2020-08-20

Leakage compensation for a detector

#31
20200230648
2020-07-23

Negative impedance circuit and corresponding device

#32
20200220510
2020-07-09

Circuit arrangement and a method for operating a circuit arrangement

#33
20200218299
2020-07-09

Reference voltage generator

#34
20200193913
2020-06-18

High voltage sensing circuit, display driver integrated circuit and display apparatus including the same

#35
20200153399
2020-05-14

Auto zero offset current mitigation at an integrator input

#36
20200091953
2020-03-19

Inrush current limiter circuits having current regulating switches therein

#37
20200067461
2020-02-27

Audible noise reduction in an audio power amplifier

#38
20200052655
2020-02-13

Operational amplifier and control method thereof

#39
20190372531
2019-12-05

Amplifier with local feedback loop

#40
20190371249
2019-12-05

Semiconductor device, display panel, display device, input/output device, and data processing device

#41
20190341891
2019-11-07

Variable gain low noise amplifier with phase compensation

#42
20190339730
2019-11-07

Power-cycling voltage reference

#43
20190305731
2019-10-03

Method and system for process and temperature compensation in a transimpedance amplifier using a dual replica

#44
20190293597
2019-09-26

Semiconductor device and cell potential measuring apparatus

#45
20190288672
2019-09-19

Anti-aliasing filter

#46
20190280655
2019-09-12

AMPLIFIER CIRCUIT AND BUTTER AMPLIFIER

#47
20190253024
2019-08-15

Flame scanner having non-linear amplifier with temperature compensation

#48
20190250246
2019-08-15

Radar signal processor and radar system

#49
20190250197
2019-08-15

Impedance measuring semiconductor circuit

#50
20190242929
2019-08-08

Current detection circuit

#51
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

#52
20190189235
2019-06-20

Current sample-and-hold circuit and sensor

#53
20190158040
2019-05-23

Enhanced Reverse Isolation and Gain Using Feedback

#54
20190158035
2019-05-23

Capacitively coupled chopper amplifier

#55
20190154527
2019-05-23

Stress sensor

#56
20190116331
2019-04-18

Amplifier, and analog-to-digital conversion circuit and image sensor including the same

#57
20190109572
2019-04-11

Method and system for accurate gain adjustment of a transimpedance amplifier using a dual replica and servo loop

#58
20190074800
2019-03-07

Amplifier and reset method thereof

#59
20190068131
2019-02-28

Power amplifier module

#60
20190033431
2019-01-31

Circuit device, physical quantity measuring device, electronic apparatus, and vehicle

#61
20190028075
2019-01-24

Semiconductor integrated circuit

#62
20190027229
2019-01-24

Correlated double sampling integrating circuit

#63
20190020322
2019-01-17

Optimized multi gain LNA enabling low current and high linearity including highly linear active bypass

#64
20190013819
2019-01-10

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

#65
20180375481
2018-12-27

I—V conversion module

#66
20180262165
2018-09-13

Power amplifier module

#67
20180217960
2018-08-02

Methods and apparatuses for differential signal termination

#68
20180026597
2018-01-25

Method and system for accurate gain adjustment of a transimpedance amplifier using a dual replica and servo loop

#69
20170366147
2017-12-21

Differential circuits with constant Gbias

#70
20170317699
2017-11-02

Compensation parameter and predistortion signal

#71
20170302239
2017-10-19

Feedback circuit for power amplifier

#72
20170207761
2017-07-20

Low noise amplifier circuit

#73
20170201827
2017-07-13

Headphone driver, a sound system that incorporates the headphone driver and a computing system that incorporates the headphone driver

#74
20170178731
2017-06-22

High performance digital to analog converter

#75
20160314841
2016-10-27

High performance digital to analog converter

#76
20160301369
2016-10-13

BAND OPTIMISED RF SWITCH LOW NOISE AMPLIFIER

#77
20160299519
2016-10-13

Zero drift, limitless and adjustable reference voltage generation

#78
20160248454
2016-08-25

Compensation parameter and predistortion signal

#79
20160211818
2016-07-21

Method and system for accurate gain adjustment of a transimpedance amplifier using a dual replica and servo loop

#80
20160211807
2016-07-21

Process and temperature compensation in TIA using dual replica and servo loop

#81
20160149545
2016-05-26

CIRCUITS AND METHODS PROVIDING ATTENUATION

#82
20160079941
2016-03-17

Instrumentation amplifier

#83
20160020736
2016-01-21

Reference amplifier coupled to a voltage divider circuit to provide feedback for an amplifier

#84
20160006403
2016-01-07

Multistage amplifier circuit with improved settling time

#85
20150381123
2015-12-31

Switchable feedback circuit for radio-frequency power amplifiers

#86
20150263758
2015-09-17

High performance digital to analog converter

#87
20150206600
2015-07-23

Low-noise low-distortion signal acquisition circuit and method with reduced area utilization

#88
20150171803
2015-06-18

Broadband single-ended input to differential output low-noise amplifier

#89
20140340150
2014-11-20

Transconductance circuit and a current digital to analog converter using such transconductance circuits

#90
20140300417
2014-10-09

Amplifiers with boosted or deboosted source degeneration inductance

#91
20140035675
2014-02-06

Amplifier for a wireless receiver

#92
20130208922
2013-08-15

Integrated amplifier for driving acoustic transducers

#93
20130057346
2013-03-07

Apparatus and method for low noise amplification

#94
20130023223
2013-01-24

Method and system for sharing a single antenna for frequency modulation (FM) reception or FM transmission and near field communication (NFC)

#95
20120293262
2012-11-22

Amplifier

#96
20120293259
2012-11-22

Amplifier

#97
20120231752
2012-09-13

Method and system for a configurable front end

#98
20120218043
2012-08-30

Amplifier activation

#99
20120068766
2012-03-22

Sample-and-hold amplifier

#100
20110294419
2011-12-01

Method and system for clocking FM transmit, FM receive, and near field communication functions using DDFS

#101
20110291911
2011-12-01

Method and System for Using a Transformer for FM Transmit and FM Receive Functionality

#102
20110206099
2011-08-25

Method and system for bluetooth, near field communication and simultaneous FM transmission and reception functions

#103
20110183631
2011-07-28

Method and system for transmission or reception of FM signals utilizing a DDFS clocked by an RFID PLL

#104
20110045791
2011-02-24

Method and system for equalizing antenna circuit matching variations

#105
20110037677
2011-02-17

METHOD AND SYSTEM FOR FM TRANSMIT AND FM RECEIVE USING A TRANSFORMER AS A DUPLEXER

#106
20100283543
2010-11-11

Variable gain amplifier

#107
20100283542
2010-11-11

Linear transimpedance amplifier with wide dynamic range for high rate applications

#108
20100079204
2010-04-01

Switched-capacitor amplifier arrangement having a low input current

#109
20090289870
2009-11-26

Method and system for using a transformer for FM transmit and FM receive functionally

#110
20090251210
2009-10-08

Method And System For Gain Control And Power Saving In Broadband Feedback Low-Noise Amplifiers

#111
20090091391
2009-04-09

Configurable feedback for an amplifier

#112
20080233910
2008-09-25

Method and system for mitigating receiver saturation during simultaneous FM transmission and reception

#113
20080233908
2008-09-25

Method and system for transmission or reception of FM signals utilizing a DDFS clocked by an RFID PLL

#114
20080233891
2008-09-25

Method and system for wireless communication using integrated clock generation for bluetooth and FM transmit and FM receive functions

#115
20080233889
2008-09-25

Method and system for simultaneous FM transmission and FM reception using a shared antenna and a direct digital frequency synthesizer

#116
20080233880
2008-09-25

Method and system for sharing a single antenna for frequency modulation (FM) transmission, FM reception and near field communication (NFC)

#117
20080233874
2008-09-25

Method and system for using a bluetooth PLL to drive FM transmit, FM receive, bluetooth, and NFC functions

#118
20080233873
2008-09-25

Method and system for simultaneous FM transmit and FM receive functions using an integrated bluetooth local oscillator generator (LOGEN)

#119
20080233872
2008-09-25

Method and system for clocking FM transmit FM receive, and near field communication functions using DDFS

#120
20080233871
2008-09-25

Method and system for Bluetooth, near field communication and simultaneous FM transmission and reception functions

#121
20080233868
2008-09-25

METHOD AND SYSTEM FOR SHARING A SINGLE ANTENNA FOR FREQUENCY MODULATION (FM) TRANSMIT OR FM RECEIVE, AND NEAR FIELD COMMUNICAITON (NFC)

#122
20080233867
2008-09-25

Method and system for sharing a single antenna for frequency modulation (FM) reception or FM transmission and near field communication (NFC)

#123
20080233864
2008-09-25

Method and system for integrated bluetooth transceiver, FM transmitter and FM receiver

#124
20080232522
2008-09-25

Method and System for Integration of Bluetooth and FM Local Oscillator Generation into a Single Unit Using a DDFS

#125
20080232512
2008-09-25

Method and system for blocker and/or leakage signal rejection by DC bias cancellation

#126
20080232507
2008-09-25

Method and System for Simultaneous FM Transmission and FM Reception Using a Shared Antenna and an Integrated Local Oscillator Generator

#127
20080231543
2008-09-25

Method and system for equalizing antenna circuit matching variations

#128
20080231537
2008-09-25

Method and system for FM transmit and FM receive using a transformer as a duplexer

#129
20080231536
2008-09-25

Method and system for using a single transformer for FM transmit and FM receive functions

#130
20080231535
2008-09-25

Method and system for using a transformer for FM transmit and FM receive functionality

#131
20080231422
2008-09-25

Method and system for simultaneous transmission and reception of FM signals utilizing a DDFS clocked by an RFID PLL

#132
20080231366
2008-09-25

Method and system for a low noise amplifier with tolerance to large inputs

#133
20080231357
2008-09-25

Method and system for gain control and power saving in broadband feedback low-noise amplifiers

#134
20080156982
2008-07-03

Base line restoration circuit

#135
20070096825
2007-05-03

Operational amplifier, integrating circuit, feedback amplifier, and controlling method of the feedback amplifier

#136
16729495
2020-10-13

Current integrator and related signal processing system

#137
16387532
2020-05-26

Circuit and method for biasing transistor

#138
16013049
2019-11-26

Method and system for generating a modulated signal in a transmitter

#139
15993063
2019-08-27

Amplifier with common mode loop and chop

#140
15283526
2018-05-01

Current-mode hysteresis comparator

#141
15160912
2017-08-01

Differential circuits with constant Gbias

#142
14872328
2017-02-14

Auxiliary control of system offsets