ClassID:

220885

H03H11/30 - CPC Classification

Classification description:

Networks using active elements; Multiple-port networks; Impedance matching networks Automatic matching of source impedance to load impedance

Recent Application in this class:
#1
20260074678
2026-03-12

CIRCUIT CAPABLE OF AUTOMATICALLY ADJUSTING IMPEDANCE THEREOF

#2
20250202450
2025-06-19

COMMUNICATIONS SYSTEM INCLUDING SELECTABLE IMPEDANCE USING AN ALTERNATING PULSE WIDTH MODULATION SCHEME AND RELATED METHODS

#3
20240396529
2024-11-28

VOLTAGE AND CURRENT GENERATOR

#4
20240364314
2024-10-31

METHOD AND APPARATUS FOR DYNAMIC RF POWER SPLITTING THROUGH MANIPULATION OF DC OUTPUT PROPERTIES

#5
20240235517
2024-07-11

RF IMPEDANCE MATCHING NETWORK WITH CLAMPING CIRCUIT

#6
20240071724
2024-02-29

METHOD AND DEVICE FOR MATCHING IMPEDANCE OF PULSE RADIO FREQUENCY PLASMA

#7
20230179163
2023-06-08

Communications system including selectable impedance using an alternating pulse width modulation scheme and related methods

#8
20230101152
2023-03-30

Wireless power transmitting device including impedance matching circuit and wireless power transmission method

#9
20230088706
2023-03-23

Impedance adjustment device and impedance adjustment method

#10
20220246401
2022-08-04

IMPEDANCE MATCHING NETWORK AND METHOD

#11
20220200557
2022-06-23

Variable gain control system and method for an amplifier

#12
20210203300
2021-07-01

Impedance adjustment device and impedance adjustment method

#13
20210194462
2021-06-24

Impedance matching device and impedance matching method

#14
20210013009
2021-01-14

Hybrid matching network topology

#15
20200412364
2020-12-31

Drive circuit and impedance matching device

#16
20200343873
2020-10-29

Automatic impedance matching system, method and apparatus

#17
20200212893
2020-07-02

Impedance matching device and impedance matching method

#18
20200212892
2020-07-02

Impedance matching device and impedance matching method

#19
20200168439
2020-05-28

Impedance matching network and method

#20
20200126772
2020-04-23

Adjustment method for filter unit and plasma processing apparatus

#21
20200098320
2020-03-26

IMPEDANCE DIFFERENCE COMPENSATION CIRCUIT, DISPLAY PANEL AND MOBILE TERMINAL

#22
20200091923
2020-03-19

Digital-to-analog converter transfer function modification

#23
20190288696
2019-09-19

FREQUENCY TUNING AND/OR FREQUENCY TRACKING OF A MECHANICAL SYSTEM WITH LOW SENSITIVITY TO ELECTRICAL FEEDTHROUGH

#24
20190288683
2019-09-19

Drive circuit and impedance matching device

#25
20190181840
2019-06-13

Matching circuit

#26
20190165753
2019-05-30

RF power amplifier with combined baseband, fundamental and harmonic tuning network

#27
20190165747
2019-05-30

APPARATUS AND METHOD FOR VOLTAGE DISTRIBUTION

#28
20190158069
2019-05-23

Transmission line with device for limiting losses through impedance mismatch

#29
20190140867
2019-05-09

Memory controller with adjustable impedance for output terminal

#30
20190081609
2019-03-14

Impedance adjusting circuit and integrated circuit including the same

#31
20190043578
2019-02-07

Impedance tuning between packaging and dies

#32
20180302063
2018-10-18

Transmission line with device for limiting losses through impedance mismatch

#33
20180269723
2018-09-20

Wireless power transmitter

#34
20180261286
2018-09-13

Impedance tuning between packaging and dies

#35
20180175828
2018-06-21

Voltage variable attenuator, an integrated circuit and a method of attenuation

#36
20180159516
2018-06-07

High-efficiency frequency doubler with a compensated transformer-based input balun

#37
20180138895
2018-05-17

Resistance calibration circuit and device

#38
20180123567
2018-05-03

LINEARIZED NEGATIVE IMPEDANCE CONVERTER MATCHING CIRCUITS AND IMPEDANCE ADJUSTMENT CIRCUIT FOR A NEGATIVE IMPEDANCE CONVERTER

#39
20180115298
2018-04-26

Matching device and matching method

#40
20170359058
2017-12-14

Apparatus for reducing RF crossover coupling

#41
20170359056
2017-12-14

Methods and apparatus for reducing RF crossover coupling

#42
20170346464
2017-11-30

Biased impedance circuit, impedance adjustment circuit, and associated signal generator

#43
20170338790
2017-11-23

IMPEDANCE MATCHING DEVICE AND METHOD

#44
20170310306
2017-10-26

Switchable termination with multiple impedance selections

#45
20170302250
2017-10-19

Radio frequency transmit filter with integrated impedance matching network

#46
20170294891
2017-10-12

Method and apparatus for adaptive impedance matching

#47
20170279424
2017-09-28

Apparatus and method for variable voltage distribution

#48
20170202106
2017-07-13

Enclosure cooling system

#49
20170180167
2017-06-22

Automatic impedance matching for a radiofrequency reception chain

#50
20170170793
2017-06-15

Splitter/combiner system for RF waves

#51
20170149420
2017-05-25

Frequency multiplier

#52
20170063344
2017-03-02

Method for automatically adjusting a tuning unit, and automatic tuning system using this method

#53
20170047891
2017-02-16

Method and system for a distributed transmission line multiplexer for a multi-core multi-mode voltage-controlled oscillator (VCO)

#54
20170040677
2017-02-09

Impedance matching circuit

#55
20160380640
2016-12-29

Frequency tuning and/or frequency tracking of a mechanical system with low sensitivity to electrical feedthrough

#56
20160373146
2016-12-22

Method and apparatus for managing interference in a communication device

#57
20160294342
2016-10-06

CMOS RF switch device and method for biasing the same

#58
20160252917
2016-09-01

Apparatus and methods for generating a variable regulated voltage

#59
20160134260
2016-05-12

RF impedance matching network

#60
20160049921
2016-02-18

Configurable RF transmit/receive multiplexer

#61
20150349750
2015-12-03

Impedance-matching network using BJT switches in variable-reactance circuits

#62
20150341013
2015-11-26

Communication circuit with impedance matching

#63
20150341012
2015-11-26

Method and apparatus for adaptive impedance matching

#64
20150303907
2015-10-22

CM CLAMPING METHODS AND CIRCUITS FOR WIRED COMMUNICATION APPLICATIONS

#65
20150244363
2015-08-27

Line receiver circuit with active termination

#66
20150123870
2015-05-07

Methods for tuning an adaptive impedance matching network with a look-up table

#67
20150084692
2015-03-26

CMOS RF switch device and method for biasing the same

#68
20150078485
2015-03-19

Method and apparatus for automatically tuning an impedance matrix, and radio transmitter using this apparatus

#69
20150054594
2015-02-26

SWITCH

#70
20150048898
2015-02-19

Tunable impedance matching network

#71
20150031314
2015-01-29

Method and apparatus for managing interference in a communication device

#72
20150008965
2015-01-08

Impedance component having low sensitivity to power supply variations

#73
20140378076
2014-12-25

Method and apparatus for managing interference in a communication device

#74
20140340144
2014-11-20

Common mode noise reduction circuit, differential signal transmitting apparatus, differential signal transmitting system and car electronics device

#75
20140320229
2014-10-30

Transmission line driver with output swing control

#76
20140210568
2014-07-31

MATCHING NETWORK

#77
20140183972
2014-07-03

Wireless power transmitter and wireless power receiver

#78
20140073267
2014-03-13

Filters for multi-band wireless device

#79
20140015619
2014-01-16

Method and apparatus for adaptive impedance matching

#80
20130326300
2013-12-05

Termination circuit, semiconductor device, and test system

#81
20130321092
2013-12-05

HYBRID ACTIVE TUNING SYSTEMS AND METHODS

#82
20130293316
2013-11-07

Methods for directional coupler termination impedance control

#83
20130234804
2013-09-12

Method and circuitry for matching impedance

#84
20130214616
2013-08-22

Transmission line pulsing

#85
20130193867
2013-08-01

Impedance-matching network using BJT switches in variable-reactance circuits

#86
20130187826
2013-07-25

Tunable broadband antenna matching circuits and devices using same

#87
20130009724
2013-01-10

Non-foster circuit stabilization method

#88
20130009722
2013-01-10

Wide bandwidth automatic tuning circuit

#89
20120313485
2012-12-13

Impedance matched transmission circuit with analog-to-digital converter

#90
20120299632
2012-11-29

SIMULTANEOUS SIGNAL INPUT MATCHING AND LINEARIZATION

#91
20120293187
2012-11-22

Simple and minimally invasive methods and systems for sensing and computing load impedance

#92
20120286758
2012-11-15

Controller

#93
20120223786
2012-09-06

Method and apparatus for adaptive impedance matching

#94
20120188007
2012-07-26

Impedance-matching network using BJT switches in variable-reactance circuits

#95
20120154069
2012-06-21

Methods for tuning an adaptive impedance matching network with a look-up table

#96
20120109558
2012-05-03

Method for implementing electromagnetic anti-interference filter impedance match and measuring system thereof

#97
20120105100
2012-05-03

Impedance calibration circuit and semiconductor apparatus using the same

#98
20120056689
2012-03-08

Methods for tuning an adaptive impedance matching network with a look-up table

#99
20120038419
2012-02-16

Mitigating side effects of impedance transformation circuits

#100
20110304408
2011-12-15

Method and apparatus for adaptive impedance matching

#101
20110300899
2011-12-08

CMOS RF switch device and method for biasing the same

#102
20110300898
2011-12-08

High linearity CMOS RF switch passing large signal and quiescent power amplifier current

#103
20110298559
2011-12-08

Apparatus and method for directional coupling

#104
20110298537
2011-12-08

Voltage distribution for controlling CMOS RF switch

#105
20110298526
2011-12-08

Apparatus and method for disabling well bias

#106
20110298523
2011-12-08

Apparatus and method for well buffering

#107
20110298444
2011-12-08

Apparatus and method for diffusion sensing

#108
20110298435
2011-12-08

APPARATUS AND METHOD FOR VOLTAGE DISTRIBUTION

#109
20110298432
2011-12-08

APPARATUS AND METHOD FOR VARIABLE VOLTAGE FUNCTION

#110
20110298280
2011-12-08

APPARATUS AND METHOD FOR VARIABLE VOLTAGE DISTRIBUTION

#111
20110285561
2011-11-24

Impedance matched transmission circuit with analog-to-digital converter

#112
20110279184
2011-11-17

Area efficient concurrent matching transceiver

#113
20110275334
2011-11-10

Servo loop for quality-factor compensation in a capacitor array

#114
20110267140
2011-11-03

Impedance calibration circuit and semiconductor apparatus using the same

#115
20110254638
2011-10-20

Method and apparatus for managing interference in a communication device

#116
20110254637
2011-10-20

Method and apparatus for managing interference in a communication device

#117
20110169555
2011-07-14

Mitigating side effects of impedance transformation circuits

#118
20110165853
2011-07-07

Antenna system comprising an electrically small antenna for reception of UHF band channel signals

#119
20110130104
2011-06-02

VSWR compensation circuits for RF transmit chain

#120
20110109714
2011-05-12

In-vehicle apparatus and in-vehicle apparatus system

#121
20110109422
2011-05-12

Impedance calibration circuit with uniform step heights

#122
20110012689
2011-01-20

Impedance adjustment circuit for adjusting terminal resistance and related method

#123
20100321129
2010-12-23

Circuit device and method of coupling to an antenna

#124
20100321037
2010-12-23

Configurable voltage regulator

#125
20100295581
2010-11-25

Buffer with active output impedance matching

#126
20100289523
2010-11-18

Echo canceling arrangement

#127
20100164641
2010-07-01

Method and apparatus for adaptive impedance matching

#128
20100164640
2010-07-01

Method and apparatus for adaptive impedance matching

#129
20100164639
2010-07-01

Method and apparatus for adaptive impedance matching

#130
20100148884
2010-06-17

Impedance matched transmitting arrangement

#131
20100073103
2010-03-25

Methods for tuning an adaptive impedance matching network with a look-up table

#132
20090322310
2009-12-31

Self-calibration circuit with gyrated output impedance

#133
20090207063
2009-08-20

Variable passive components with high resolution value selection and control

#134
20090093227
2009-04-09

Radio receiver

#135
20090091334
2009-04-09

Calibration circuit for resistance component

#136
20080197860
2008-08-21

Configurable voltage regulator

#137
20080180294
2008-07-31

Variable passive components with high resolution value selection and control

#138
20080150650
2008-06-26

System and method for converting an input signal

#139
20080111649
2008-05-15

Differential signaling system and display using the same

#140
20080106349
2008-05-08

Adaptive impedance matching apparatus, system and method

#141
20080079441
2008-04-03

Calibration circuit for resistance component

#142
20080076476
2008-03-27

RF transceiver with a plurality of programmable antennas and methods for use therewith

#143
20070236247
2007-10-11

Techniques for providing flexible on-chip termination control on integrated circuits

#144
20070198201
2007-08-23

Configurable voltage regulator

#145
20070194967
2007-08-23

Impedance match circuit

#146
20070194813
2007-08-23

Variable passive components with high resolution value selection and control

#147
20070115065
2007-05-24

Stabilization circuit and multiband amplification circuit

#148
20070085609
2007-04-19

Transmitting arrangement and method for impedance matching

#149
20070071079
2007-03-29

Selectable hybrid circuitry for transmission systems and method therefor

#150
20070067135
2007-03-22

Configurable voltage regulator

#151
20060195276
2006-08-31

Configurable voltage regulator

#152
20060158216
2006-07-20

Semiconductor integrated circuit device

#153
20060099921
2006-05-11

Antenna module for receiving signal having broadcasting frequency

#154
20060049893
2006-03-09

Image forming apparatus

#155
20060009933
2006-01-12

Configurable voltage regulator

#156
20050146376
2005-07-07

Impedance matching circuit and method

#157
20050059362
2005-03-17

Method and apparatus providing integrated load matching using adaptive power amplifier compensation

#158
20050012533
2005-01-20

Semiconductor integrated circuit device

#159
16724195
2020-09-22

Digital to analog converter tolerant to element mismatch

#160
16663404
2020-06-09

Single solution impedance matching method

#161
16521911
2020-06-09

Automatic impedance matching system, method and apparatus

#162
16443139
2019-11-19

Single solution impedance matching system, method and apparatus

#163
16394387
2020-01-14

Dynamic antenna matching system and method

#164
16151838
2020-07-28

Active electronic tuner

#165
15806421
2018-09-18

Bidirectional interface using thin oxide devices

#166
15795354
2018-10-16

Hybrid electro-mechanical tuner

#167
15585174
2017-11-21

Resistor calibration system

#168
15492677
2018-09-11

Bidirectional interface using thin oxide devices

#169
15473602
2018-04-17

Electronic device capable of bandwidth compensation and method thereof

#170
14731178
2016-08-16

Method and apparatus to reconfigure a filter