ClassID:

220124

H03F2203/45638 - 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 LC comprising one or more coils

Recent Application in this class:
#1
20210013853
2021-01-14

Transceiver module

#2
20200067470
2020-02-27

Line drivers for wireline transmission devices

#3
20200067462
2020-02-27

HIGH FREQUENCY AMPLIFIER

#4
20200021252
2020-01-16

Current amplifier

#5
20190334492
2019-10-31

Line drivers for wireline transmission devices

#6
20190207561
2019-07-04

Amplifying device comprising a compensation circuit

#7
20190115876
2019-04-18

Power amplifier with nulling monitor circuit

#8
20190103839
2019-04-04

Radio frequency (RF) receiver circuit

#9
20190097583
2019-03-28

Amplifier configuration for load-line enhancement

#10
20190074802
2019-03-07

Low noise amplifier

#11
20180205349
2018-07-19

Class-F power amplifier matching network

#12
20180006619
2018-01-04

Radio frequency system switching power amplifier systems and methods

#13
20170359029
2017-12-14

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#14
20170310290
2017-10-26

Amplifiers

#15
20170133989
2017-05-11

Bias control for stacked transistor configuration

#16
20160241199
2016-08-18

Control systems and methods for power amplifiers operating in envelope tracking mode

#17
20160190993
2016-06-30

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#18
20160190989
2016-06-30

Optimization methods for amplifier with variable supply power

#19
20160164469
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

#20
20160164468
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

#21
20160156315
2016-06-02

Parallel resonant circuit

#22
20160072279
2016-03-10

Circuit and method for increasing inductor current

#23
20160056769
2016-02-25

Power amplification module

#24
20150340991
2015-11-26

Multi-band power amplifier

#25
20150270806
2015-09-24

Bias control for stacked transistor configuration

#26
20150214900
2015-07-30

Dual feedback low noise amplifier

#27
20150015329
2015-01-15

Radio frequency composite Class-S power amplifier having discrete power control

#28
20150002236
2015-01-01

Systems and methods of stacking LC tanks for wide tuning range and high voltage swing

#29
20140354359
2014-12-04

High-frequency signal processing device

#30
20140253234
2014-09-11

Differential power amplifier using mode injection

#31
20140232462
2014-08-21

Power amplifier using differential structure

#32
20140225675
2014-08-14

Apparatus for a radio frequency integrated circuit

#33
20140203872
2014-07-24

Low-noise amplifier, receiver, method and computer program

#34
20140184338
2014-07-03

ASK modulation amplification circuit

#35
20140184337
2014-07-03

Control systems and methods for power amplifiers operating in envelope tracking mode

#36
20140184336
2014-07-03

Amplifier dynamic bias adjustment for envelope tracking

#37
20140184335
2014-07-03

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

#38
20140184334
2014-07-03

Optimization methods for amplifier with variable supply power

#39
20140167858
2014-06-19

Amplifer device

#40
20140085009
2014-03-27

Amplifier inductor sharing for inductive peaking and method therefor

#41
20140049317
2014-02-20

Power amplifier circuit

#42
20140022018
2014-01-23

Amplifier with gain circuit coupeld to primary coil of transformer

#43
20130307620
2013-11-21

Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof

#44
20130281043
2013-10-24

Low noise amplifier

#45
20130265108
2013-10-10

Extremely high frequency dual-mode class AB power amplifier

#46
20130229232
2013-09-05

Amplifier bandwidth extension for high-speed tranceivers

#47
20130141170
2013-06-06

Amplifier inductor sharing for inductive peaking

#48
20130120884
2013-05-16

Input/output circuit with inductor

#49
20130033321
2013-02-07

High efficiency power amplifier

#50
20130021100
2013-01-24

Method and system for multiple tuner application using a low noise broadband distribution amplifier

#51
20120326788
2012-12-27

Amplifier bandwidth extension for high-speed tranceivers

#52
20120299651
2012-11-29

FEED-BACK AND FEED-FORWARD SYSTEMS AND METHODS TO REDUCE OSCILLATOR PHASE-NOISE

#53
20120286874
2012-11-15

Positive feedback common gate low noise amplifier

#54
20120262236
2012-10-18

Differential amplifying circuit

#55
20120178400
2012-07-12

Amplifiers and related receiver systems

#56
20120178391
2012-07-12

Adjustable circuit architecture

#57
20120098606
2012-04-26

High-frequency signal processing device

#58
20120068769
2012-03-22

High-frequency differential amplifier circuit

#59
20120063545
2012-03-15

Method and system for enhancing efficiency by modulating power amplifier gain

#60
20120013417
2012-01-19

Center-tapped inductor balun

#61
20120013404
2012-01-19

Method and apparatus for broadband input matching with noise and non-linearity cancellation in power amplifiers

#62
20120009889
2012-01-12

Narrow-band tunable radio frequency (RF) power amplifiers and related methods

#63
20120007676
2012-01-12

Drive amplifier

#64
20110241779
2011-10-06

Front-end equalizer and amplifier circuit

#65
20110221532
2011-09-15

Semiconductor integrated circuit device and communication system

#66
20110143822
2011-06-16

Fully integrated compact cross-coupled low noise amplifier

#67
20110109389
2011-05-12

Amplifier circuit, integrated circuit and radio frequency communication unit

#68
20110095812
2011-04-28

Transmission line coupled to circuits and Q-enhancement cell

#69
20100315167
2010-12-16

Inter-stage matching network to enhance common mode stability

#70
20100311352
2010-12-09

Radio frequency unit analog level detector and feedback control system

#71
20100277215
2010-11-04

Wideband voltage translators

#72
20100271128
2010-10-28

Composite differential RF power amplifier layout

#73
20100259331
2010-10-14

High-linearity low noise amplifier

#74
20100255792
2010-10-07

Adaptive radio transceiver with an antenna matching circuit

#75
20100237958
2010-09-23

Feed-back and feed-forward systems and methods to reduce oscillator phase-noise

#76
20100237949
2010-09-23

Method and system for enhancing efficiency by modulating power amplifier gain

#77
20100202499
2010-08-12

Wireless radio frequency signal transceiving system

#78
20100182089
2010-07-22

Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode

#79
20100164627
2010-07-01

Comparator circuit for comparing three inputs

#80
20100158539
2010-06-24

Amplification circuit, differential amplification circuit, and optical transmitter

#81
20100148868
2010-06-17

Differential amplifier

#82
20100109780
2010-05-06

Flexible dynamic range amplifier

#83
20100052787
2010-03-04

Limiting amplifiers

#84
20100045381
2010-02-25

Limiting amplifiers

#85
20100039178
2010-02-18

Amplifier circuit

#86
20100013557
2010-01-21

Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading

#87
20100009639
2010-01-14

Radio frequency unit analog level detector and feedback control system

#88
20090315625
2009-12-24

Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode

#89
20090284311
2009-11-19

Resistor circuit

#90
20090273401
2009-11-05

Method and system for multiple tuner application using a low noise broadband distribution amplifier

#91
20090237165
2009-09-24

Cross-coupled low noise amplifier for cellular applications

#92
20090224831
2009-09-10

Cancellation of common mode oscillation in RF circuits

#93
20090212861
2009-08-27

Low noise amplifier

#94
20090201088
2009-08-13

Measuring load impedance of an amplifier driving a variable load

#95
20090140807
2009-06-04

DIFFERENTIAL AMPLIFIER CIRCUIT

#96
20090140771
2009-06-04

Current-controlled CMOS circuits with inductive broadbanding

#97
20090137213
2009-05-28

Adaptive radio transceiver with offset PLL with subsampling mixers

#98
20090133083
2009-05-21

PASSIVE CIRCUIT FOR IMPROVED DIFFERENTIAL AMPLIFIER COMMON MODE REJECTION

#99
20090104873
2009-04-23

FULLY INTEGRATED COMPACT CROSS-COUPLED LOW NOISE AMPLIFIER

#100
20090102562
2009-04-23

Cross-coupled low noise amplifier for cellular applications

#101
20090096533
2009-04-16

Adaptively tuned RF power amplifier

#102
20090096532
2009-04-16

Differential amplifier with single ended output

#103
20090096490
2009-04-16

Transconductor

#104
20090085671
2009-04-02

Load inductor sharing

#105
20090085668
2009-04-02

Inductor sharing in radio frequency communications

#106
20090075597
2009-03-19

DEVICE, SYSTEM, AND METHOD OF LOW-NOISE AMPLIFIER

#107
20090066394
2009-03-12

Peaking control circuit

#108
20090039964
2009-02-12

Low-noise amplifier circuit and receiving system

#109
20090023413
2009-01-22

Cross coupled high frequency buffer

#110
20090009244
2009-01-08

High-frequency circuit

#111
20080309411
2008-12-18

Radio frequency signal amplifying device

#112
20080290966
2008-11-27

Adaptive radio transceiver with filtering

#113
20080247338
2008-10-09

High-frequency amplifier, and transmission/reception system

#114
20080191313
2008-08-14

Adaptive radio transceiver with floating mosfet capacitors

#115
20080186100
2008-08-07

Variable-gain amplification circuit, receiver and receiver IC

#116
20080182526
2008-07-31

Adaptive radio transceiver with an antenna matching circuit

#117
20080139158
2008-06-12

Method and system for a transformer-based high performance cross-coupled low noise amplifier

#118
20080137773
2008-06-12

Method and system for enhancing efficiency by modulating power amplifier gain

#119
20080074228
2008-03-27

Low mutual inductance matched inductors

#120
20080074195
2008-03-27

Adaptive tuning circuit to maximize output signal amplitude for an amplifier

#121
20080061828
2008-03-13

Inductor-tuned buffer circuit with improved modeling and design

#122
20080058030
2008-03-06

Transmitter for transmitting a transmission signal

#123
20080055005
2008-03-06

Feedback-type variable gain amplifier and method of controlling the same

#124
20080054983
2008-03-06

System and method for common mode bias for high frequency buffers

#125
20080032661
2008-02-07

Circuit with Q-enhancement cell having programmable bias current slope

#126
20080032648
2008-02-07

Ultra wide band, differential input/output, high frequency active combiner in an integrated circuit

#127
20080030266
2008-02-07

Limiting amplifiers

#128
20080024172
2008-01-31

Actively Compensated Buffering for High Speed Current Mode Logic Data Path

#129
20080018405
2008-01-24

Ultra wide band, differential input/output, high frequency amplifier in an integrated circuit

#130
20080012600
2008-01-17

Current-controlled CMOS circuits with inductive broadbanding

#131
20080007339
2008-01-10

Transmitter apparatus with extended gain control

#132
20080001665
2008-01-03

Ultra wide band, differential input/output, high frequency active splitter in an integrated circuit

#133
20070290754
2007-12-20

Push-pull amplifier and method for low noise amplification

#134
20070285154
2007-12-13

Adaptive radio transceiver with filtering

#135
20070270111
2007-11-22

Dual power mode transmitter

#136
20070216481
2007-09-20

Low noise amplifiers for low-power impulse radio ultra-wideband receivers

#137
20070213027
2007-09-13

Integrated low noise amplifier

#138
20070200628
2007-08-30

Gain boosting for tuned differential LC circuits

#139
20070188240
2007-08-16

Ultra-wideband constant gain CMOS amplifier

#140
20070176687
2007-08-02

High frequency power amplifier

#141
20070129903
2007-06-07

Digital signal offset adjusting apparatus and pulse pattern generator using the same

#142
20070115074
2007-05-24

Analog delay chain having more uniformly distributed capacitive loads and analog delay cell for use in chain

#143
20070111027
2007-05-17

Light-emitting organic materials

#144
20070085617
2007-04-19

Amplifier arrangement for ultra-wideband applications and method

#145
20070069717
2007-03-29

Self-shielded electronic components

#146
20070049205
2007-03-01

Adaptive radio transceiver with an antenna matching circuit

#147
20070025435
2007-02-01

Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading

#148
20070024369
2007-02-01

Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection

#149
20070018727
2007-01-25

Variable gain amplifier and wireless communication apparatus including the same

#150
20070001769
2007-01-04

Ultra-wideband constant gain CMOS amplifier

#151
20070001760
2007-01-04

Buffer amplifier

#152
20060284670
2006-12-21

Neutralization techniques for differential low noise amplifiers

#153
20060276159
2006-12-07

Low noise amplifier with constant input impedance

#154
20060267689
2006-11-30

Parallel power amplifier apparatus, method, and system

#155
20060250184
2006-11-09

SiGe differential cascode amplifier with miller effect resonator

#156
20060232349
2006-10-19

Integrated circuit arrangement

#157
20060220736
2006-10-05

Low noise amplifier and differential amplifier with variable gain mode

#158
20060214728
2006-09-28

Transmitter apparatus with extended gain control

#159
20060202759
2006-09-14

Transistor biasing independent of inductor voltage drop

#160
20060170500
2006-08-03

Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier

#161
20060145762
2006-07-06

Gain boosting for tuned differential LC circuits

#162
20060145728
2006-07-06

System and method for high frequency, high output swing buffers

#163
20060131701
2006-06-22

Use of a down-bond as a controlled inductor in integrated circuit applications

#164
20060091954
2006-05-04

Method and system for common mode feedback circuitry for RF buffers

#165
20060091931
2006-05-04

System and method for common mode bias for high frequency buffers

#166
20060071712
2006-04-06

Variable gain amplifier

#167
20060066411
2006-03-30

Power amplifier for a transmitter

#168
20060061415
2006-03-23

Low voltage broadband gain cell

#169
20060057990
2006-03-16

Gain boosting RF gain stage with cross-coupled capacitors

#170
20060050809
2006-03-09

System and method for reducing phase distortion in a linear transmitter via the introduction of bias currents to a power amplifier

#171
20060049872
2006-03-09

Non-match power amplifier and method for increased output 1 dB compression point

#172
20060044061
2006-03-02

Analog delay chain having more uniformly distributed capacitive loads and analog delay cell for use in chain

#173
20060033584
2006-02-16

Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier

#174
20060028275
2006-02-09

Differential amplifier having independently tunable base gain, peak gain and boost frequency, and uses of same

#175
20050275458
2005-12-15

Programmable passive inductor

#176
20050264356
2005-12-01

Extended bandwidth amplifier and oscillator using positive current feedback through inductive load

#177
20050258873
2005-11-24

Current-controlled CMOS circuits with inductive broadbanding

#178
20050248408
2005-11-10

Ultra-wideband constant gain CMOS amplifier

#179
20050248396
2005-11-10

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

#180
20050208921
2005-09-22

Low noise amplifier with constant input impedance

#181
20050186930
2005-08-25

Adaptive radio transceiver with offset PLL with subsampling mixers

#182
20050186925
2005-08-25

Adaptive radio transceiver with floating MOSFET capacitors

#183
20050174175
2005-08-11

Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit

#184
20050153664
2005-07-14

Adaptive radio transceiver with an antenna matching circuit

#185
20050136847
2005-06-23

Communication semiconductor integrated circuit device and electrical apparatus

#186
20050116774
2005-06-02

Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier

#187
20050114428
2005-05-26

Analog delay elements

#188
20050110569
2005-05-26

Digitally controlled transconductance cell

#189
20050093630
2005-05-05

Power level controlling of first amplification stage for an integrated RF power amplifier

#190
20050093628
2005-05-05

Differential amplifier circuit and multistage amplifier circuit

#191
20050090223
2005-04-28

Use of a down-bond as a controlled inductor in integrated circuit applications

#192
20050088263
2005-04-28

High performance switch for switched inductor tuned RF circuit

#193
20050088262
2005-04-28

Tuning RF circuits using switched inductors provided in a monolithic integrated circuit

#194
20050085205
2005-04-21

Radio frequency unit analog level detector and feedback control system

#195
20050083125
2005-04-21

Variable gain amplifier capable of functioning at low power supply voltage

#196
20050079836
2005-04-14

Power amplifier having enhanced swing cascode architecture

#197
20050057305
2005-03-17

Radio frequency low noise amplifier with automatic gain control

#198
20050043007
2005-02-24

Integrated low noise amplifier

#199
20050007197
2005-01-13

Method and system for producing a drive signal for a current steering amplifier

#200
20050007196
2005-01-13

Absorptive microwave single pole single throw switch

#201
16022871
2019-10-15

Lumped compensated outphasing power combiner