ClassID:

220215

H03G1/007 - CPC Classification

Classification description:

Details of arrangements for controlling amplification; Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices

Recent Application in this class:
#1
20260074666
2026-03-12

CURRENT CONVERTER CIRCUIT

#2
20260058849
2026-02-26

CONTINUOUS TIME LINEAR EQUALIZER EMPLOYING CURRENT-REUSE AND CURRENT-STEALING ARCHITECTURE

#3
20260012150
2026-01-08

ATTENUATOR CIRCUIT AND OUTPUT LOAD CIRCUIT

#4
20230231525
2023-07-20

Variable gain amplifier circuit and method having linearity compensation mechanism

#5
20220407490
2022-12-22

Wideband signal attenuator

#6
20220123703
2022-04-21

Attenuator arrangement

#7
20220052663
2022-02-17

Semiconductor device, electronic device, and artificial satellite

#8
20210344316
2021-11-04

Field effect transistor circuits

#9
20210344308
2021-11-04

High-frequency power amplifier

#10
20200382087
2020-12-03

Variable gain amplifier

#11
20200358427
2020-11-12

Radio frequency switch

#12
20200177145
2020-06-04

Biasing circuits for voltage controlled or output circuits

#13
20200007085
2020-01-02

Dynamic amplifier and related gain boosting method

#14
20190280654
2019-09-12

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#15
20190214953
2019-07-11

High linearly WiGig baseband amplifier with channel select filter

#16
20190131956
2019-05-02

Reduced transistor bridge attenuator

#17
20190109571
2019-04-11

Combined resistance circuit and variable gain amplifier circuit

#18
20180287577
2018-10-04

Open-loop linear VGA

#19
20180254746
2018-09-06

Stacked PA power control

#20
20180191321
2018-07-05

Temperature-compensated equalizer

#21
20180138868
2018-05-17

METHOD AND SYSTEM FOR LINEARIZING AN AMPLIFIER USING TRANSISTOR-LEVEL DYNAMIC FEEDBACK

#22
20180131338
2018-05-10

Variable attenuation device, phase-switching variable attenuation device, and phase shifter

#23
20180097489
2018-04-05

High linearly WiGig baseband amplifier with channel select filter

#24
20180083585
2018-03-22

Linear variable gain amplifier

#25
20180083584
2018-03-22

Variable gain amplifier with coupled degeneration resistance and capacitance

#26
20180062596
2018-03-01

Linear-in-dB, low-voltage, programmable/variable gain amplifier (PGA) using recursive current division

#27
20180052479
2018-02-22

Integrated circuit with an amplifier MOSFET

#28
20170331438
2017-11-16

METHOD AND APPARATUS FOR CHANGING THE GAIN OF A RADIO FREQUENCY SIGNAL

#29
20170141746
2017-05-18

High linearly WiGig baseband amplifier with channel select filter

#30
20170040964
2017-02-09

Method and apparatus for changing the gain of a radio frequency signal

#31
20170040954
2017-02-09

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#32
20160241216
2016-08-18

Multi-bit cell attenuator

#33
20150358015
2015-12-10

Constant impedance switch

#34
20150295571
2015-10-15

Radiation-hardened dual gate semiconductor transistor devices containing various improved structures including MOSFET gate and JFET gate structures and related methods

#35
20140320240
2014-10-30

Active attenuator keeping saturated output power for reduced input power

#36
20140285266
2014-09-25

Amplification device and transmitter

#37
20140103998
2014-04-17

Radio frequency signal gain control

#38
20140035674
2014-02-06

Conditionally-stable operational amplifier with tunable wideband buffers

#39
20130271218
2013-10-17

High speed transimpedance amplifier

#40
20130207723
2013-08-15

GM-ratioed amplifier

#41
20130120068
2013-05-16

Radio frequency signal gain control

#42
20130113566
2013-05-09

Variable gain amplifier

#43
20120326787
2012-12-27

VARIABLE-GAIN AMPLIFIER CIRCCUIT AND RECEIVER INCLUDING THE SAME

#44
20120274398
2012-11-01

RF AGC control

#45
20120235745
2012-09-20

Variable gain amplifier

#46
20120154055
2012-06-21

Power amplifier

#47
20120139638
2012-06-07

Methods and Circuits for Controlling Amplifier Gain Over Process, Voltage, and Temperature

#48
20120139635
2012-06-07

Gate-based output power level control power amplifier

#49
20110285481
2011-11-24

Linearization systems and methods for variable attenuators

#50
20110177789
2011-07-21

LOW NOISE AMPLIFIER AND THE USES THEREOF

#51
20110133837
2011-06-09

VARIABLE GAIN AMPLIFIER

#52
20110102088
2011-05-05

Low noise amplifier circuit

#53
20110095822
2011-04-28

Variable-gain low noise amplifier

#54
20110084763
2011-04-14

Db-linear process-independent variable gain amplifier

#55
20110038491
2011-02-17

Passive sound pressure level limiter

#56
20100283542
2010-11-11

Linear transimpedance amplifier with wide dynamic range for high rate applications

#57
20100123521
2010-05-20

Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on MOSFET resistors

#58
20100060797
2010-03-11

Automatic gain control with improved cross-modulation

#59
20100022198
2010-01-28

High frequency amplifier circuit and mobile communication terminal using the same

#60
20090201091
2009-08-13

System and method for controlling attenuator

#61
20090153248
2009-06-18

Amplifier with dynamic bias

#62
20090143036
2009-06-04

Linear voltage controlled variable attenuator with linear DB/V gain slope

#63
20090103668
2009-04-23

Automatic gain control circuit

#64
20080318539
2008-12-25

Automatic gain control circuit for volume control and corresponding method for volume control

#65
20080297258
2008-12-04

Variable impedance circuit; and variable impedance system, filter circuit, amplifier, and communication system using the same

#66
20080204135
2008-08-28

Method and system for low noise amplifier (LNA) gain adjustment through narrowband received signal strength indicator (NRSSI)

#67
20080100377
2008-05-01

Methods and devices for providing an amplitude estimate of a time varying signal

#68
20080079477
2008-04-03

Attenuators with progressive biased field-effect transistors

#69
20080079476
2008-04-03

Gate load impedance networks for field effect transistor attenuators and mixers

#70
20080048751
2008-02-28

Process and temperature-independent voltage controlled attenuator and method

#71
20080036534
2008-02-14

Power amplifier circuit having a bias signal inputted into input terminal and method thereof

#72
20080031382
2008-02-07

Low distortion radio frequency (RF) limiter

#73
20070285174
2007-12-13

High-frequency circuit of reduced circuit scale

#74
20070273435
2007-11-29

AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit and its semiconductor integrated circuit

#75
20070223648
2007-09-27

Prescaler and buffer

#76
20070222518
2007-09-27

High frequency amplifier circuit and mobile communication terminal using the same

#77
20070188229
2007-08-16

Variable gain amplifier with constant input referred third order intercept

#78
20070176683
2007-08-02

Variable gain amplifier

#79
20070164820
2007-07-19

Method and system for low noise amplifier (LNA) gain adjustment through narrowband received signal strength indicator (NRSSI)

#80
20070152744
2007-07-05

Variable gain voltage/current converter circuit having current compensation circuit for compensating for change in DC current flowing into active element for performing voltage/current conversion

#81
20070139119
2007-06-21

Variable attenuator

#82
20070132513
2007-06-14

Variable gain amplifier

#83
20070126501
2007-06-07

Variable gain amplifier and variable gain amplifier module

#84
20070105523
2007-05-10

Low noise amplifier

#85
20070075774
2007-04-05

Variable gain amplifier

#86
20070075768
2007-04-05

Circuit configuration having a feedback operational amplifier

#87
20070072569
2007-03-29

Linear voltage controlled variable attenuator with linear DB/V gain slope

#88
20060251428
2006-11-09

Method and system for converting an optical received pulse train into an electrical output pulse train

#89
20060220743
2006-10-05

Variable gain amplifier, mixer and quadrature modulator using the same

#90
20060202760
2006-09-14

Controllable amplifier and the use thereof

#91
20060202751
2006-09-14

Controllable amplifier and method for amplifying a signal

#92
20060198176
2006-09-07

Low noise amplifier

#93
20060197599
2006-09-07

Variable gain wideband amplifier

#94
20060186960
2006-08-24

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

#95
20060186944
2006-08-24

Process independent voltage controlled logarithmic attenuator having a low distortion and method therefor

#96
20060114059
2006-06-01

Power amplifier with controllable feedback loop

#97
20060099751
2006-05-11

Semiconductor integrated circuit and semiconductor integrated circuit manufacturing method

#98
20060091957
2006-05-04

Method and system for low noise amplifier (LNA) and power amplifier (PA) gain control

#99
20060091948
2006-05-04

Method and system for low noise amplifier (LNA) gain adjustment through narrowband received signal strength indicator (NRSSI)

#100
20060066398
2006-03-30

High frequency power amplifier circuit and electric component for high frequency power amplifier

#101
20060040629
2006-02-23

High frequency amplification circuit and mobile communication terminal using the same

#102
20060033575
2006-02-16

Variable-gain amplifier

#103
20050266815
2005-12-01

Agc circuit

#104
20050248396
2005-11-10

VGA-CTF combination cell for 10 Gb/s serial data receivers

#105
20050218974
2005-10-06

Bandpass amplifier, method, and system

#106
20050208905
2005-09-22

High frequency power amplifier module, and wireless communication system

#107
20050200417
2005-09-15

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

#108
20050200416
2005-09-15

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

#109
20050200415
2005-09-15

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

#110
20050200402
2005-09-15

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

#111
20050162567
2005-07-28

Television tuner having variable gain reduction

#112
20050162233
2005-07-28

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

#113
20050140456
2005-06-30

Variable-gain cascode amplifier using voltage-controlled and variable inductive load

#114
20050140449
2005-06-30

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

#115
20050140448
2005-06-30

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

#116
20050088203
2005-04-28

Tail current generator circuit for bipolar/MOS differential pair to set precise transconductance

#117
20050073359
2005-04-07

Apparatus for automatically controlling a gain of a power amplifier and associated methods

#118
20050058303
2005-03-17

Dynamic bass boost apparatus and method

#119
20050046483
2005-03-03

Variable gain current feedback amplifier

#120
20050001685
2005-01-06

High frequency amplifier circuit and mobile communication terminal using the same

#121
16514174
2020-06-02

Radio frequency switch

#122
16513376
2020-05-12

Field effect transistor circuits

#123
16030567
2019-05-14

Method and apparatus for adjusting the slope of insertion loss as a function of frequency of RF digital step attenuators

#124
15418487
2018-07-03

Open-loop linear VGA