ClassID:

219581

H03F2200/27 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A biasing circuit node being switched in an amplifier circuit

Recent Application in this class:
#1
20240235497
2024-07-11

Scalable Periphery Tunable Matching Power Amplifier

#2
20240136983
2024-04-25

Scalable Periphery Tunable Matching Power Amplifier

#3
20230170315
2023-06-01

RADIO-FREQUENCY MODULE AND COMMUNICATION APPARATUS

#4
20220329215
2022-10-13

Scalable periphery tunable matching power amplifier

#5
20220294395
2022-09-15

Transceiver circuit

#6
20210376797
2021-12-02

LOW-NOISE AMPLIFIER SUPPORTING MULTI CARRIER OPERATIONS

#7
20210367557
2021-11-25

Amplifying circuit and amplifying device with start-up function

#8
20210258135
2021-08-19

Sequenced transmit muting for wideband power amplifiers

#9
20210208184
2021-07-08

Dynamically controlled auto-ranging current sense circuit

#10
20210159866
2021-05-27

Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device

#11
20210091731
2021-03-25

Amplifying device with adaptive CTAT biasing control

#12
20210058041
2021-02-25

Scalable periphery tunable matching power amplifier

#13
20200358405
2020-11-12

Transceiver circuit

#14
20200212850
2020-07-02

Temperature detection circuit, power amplification circuit, and electronic device

#15
20200195213
2020-06-18

Power amplification module

#16
20200169004
2020-05-28

Method to improve power amplifier output return loss and back-off performance with RC feedback network

#17
20200168734
2020-05-28

Self-biasing and self-sequencing of depletion mode transistors

#18
20200127804
2020-04-23

Sequenced transmit muting for wideband power amplifiers

#19
20200044613
2020-02-06

Impedance circuit and bias circuit

#20
20200036403
2020-01-30

REDUCING POWER AMPLIFIER GAIN DRIFT DURING A DATA BURST

#21
20190363630
2019-11-28

Bias current supply techniques

#22
20190312360
2019-10-10

Method to improve power amplifier output return loss and back-off performance with RC feedback network

#23
20190267954
2019-08-29

Scalable periphery tunable matching power amplifier

#24
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#25
20190245085
2019-08-08

Self-biasing and self-sequencing of depletion-mode transistors

#26
20190243169
2019-08-08

Operating a high-frequency driver circuit

#27
20190199293
2019-06-27

Power amplifying apparatus with wideband linearity

#28
20190158040
2019-05-23

Enhanced Reverse Isolation and Gain Using Feedback

#29
20190146011
2019-05-16

Voltage detection device

#30
20190123695
2019-04-25

Circuitry and method for GaN device

#31
20190089402
2019-03-21

Method to build fast transmit-receive switching architecture

#32
20190089316
2019-03-21

Method to improve power amplifier output return loss and back-off performance with RC feedback network

#33
20190089070
2019-03-21

Method for separately biasing power amplifier for additional power control

#34
20190089067
2019-03-21

Hard-wired address for phased array antenna panels

#35
20190081596
2019-03-14

Transmit/receive switching circuit

#36
20190081399
2019-03-14

Configurable power combiner and splitter

#37
20190020317
2019-01-17

Current-limiting circuit for a power amplifier

#38
20180375485
2018-12-27

Power amplification module

#39
20180351586
2018-12-06

Reducing power amplifier gain drift during a data burst

#40
20180331667
2018-11-15

Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device

#41
20180323821
2018-11-08

Communications device with receiver chain of reduced size

#42
20180294779
2018-10-11

Dynamically configurable bias circuit for controlling gain expansion of multi-mode, single chain linear power amplifiers

#43
20180198414
2018-07-12

Automatic bias controller for a pulsed power amplifier

#44
20180175807
2018-06-21

LNA with programmable linearity

#45
20180167041
2018-06-14

Bias circuitry for depletion mode amplifiers

#46
20180138870
2018-05-17

Scalable periphery tunable matching power amplifier

#47
20180097485
2018-04-05

HPA Bypass Switch

#48
20170331366
2017-11-16

Switched-capacitor buffer and related methods

#49
20170279416
2017-09-28

Dual output RF LNA

#50
20170207761
2017-07-20

Low noise amplifier circuit

#51
20170194916
2017-07-06

Reducing power amplifier gain drift during a data burst

#52
20170179911
2017-06-22

Power amplification module

#53
20170063311
2017-03-02

Semiconductor apparatus and receiver thereof

#54
20170040962
2017-02-09

Power amplifier having biasing with selectable bandwidth

#55
20160373074
2016-12-22

Bias circuitry for depletion mode amplifiers

#56
20160373068
2016-12-22

Biasing circuitry

#57
20160344346
2016-11-24

Power amplifier

#58
20160322947
2016-11-03

Power amplification module

#59
20160261237
2016-09-08

Distributed amplifier

#60
20160211812
2016-07-21

Driver circuit and associated power amplifier assembly, radio base station and method

#61
20160181995
2016-06-23

Reconfigurable bias and supply drivers for radio frequency power amplifiers

#62
20160142014
2016-05-19

Bias circuit for use with amplifier circuit, control method thereof, and signal amplifier

#63
20160112032
2016-04-21

Reflective vector modulators

#64
20160087727
2016-03-24

Optical modulator driver circuit and optical transmitter

#65
20160087593
2016-03-24

Scalable periphery tunable matching power amplifier

#66
20160036395
2016-02-04

Apparatus and methods for overdrive protection of radio frequency amplifiers

#67
20150381123
2015-12-31

Switchable feedback circuit for radio-frequency power amplifiers

#68
20150341075
2015-11-26

Amplifier utilizing a configurable interface to a front end module

#69
20150340992
2015-11-26

Low power multi-stacked power amplifier

#70
20150333704
2015-11-19

Method for class-B amplifier mismatch correction

#71
20150270775
2015-09-24

Fast startup charge pump

#72
20150263674
2015-09-17

Amplifier system

#73
20150249433
2015-09-03

Power amplifier module

#74
20150194884
2015-07-09

Direct current (DC)-DC converter having a multi-stage output filter

#75
20150194115
2015-07-09

Output circuit, data driver, and display device

#76
20150133186
2015-05-14

Multimode power amplifier bias circuit with selectable bandwidth

#77
20150108210
2015-04-23

RFID positioning and tracking apparatus and methods

#78
20150098523
2015-04-09

Apparatus and method for power amplification

#79
20140375390
2014-12-25

Power amplifier with improved low bias mode linearity

#80
20140347130
2014-11-27

Semiconductor integrated circuit device and high-frequency power amplifier module

#81
20140300421
2014-10-09

Power amplifier circuit based on a cascode structure

#82
20140292409
2014-10-02

Amplification circuit, source driver, electrooptical device, and electronic device

#83
20140266460
2014-09-18

Scalable periphery tunable matching power amplifier

#84
20140139291
2014-05-22

Power amplifier

#85
20140015613
2014-01-16

Power amplifier

#86
20130293310
2013-11-07

Dual inductive element charge pump buck and buck power supplies

#87
20130271224
2013-10-17

Multiband RF switch ground isolation

#88
20130271221
2013-10-17

Direct current (DC)-DC converter having a multi-stage output filter

#89
20130229235
2013-09-05

High-frequency amplifier, and high-frequency module and wireless transceiver using same

#90
20130217341
2013-08-22

High efficiency path based power amplifier circuitry

#91
20130214865
2013-08-22

Capacitive level-shifting circuits and methods for adding DC offsets to output of current-integrating amplifier

#92
20130177106
2013-07-11

Multiple functional equivalence digital communications interface

#93
20130149979
2013-06-13

Amplifier

#94
20130147445
2013-06-13

Voltage multiplier charge pump buck

#95
20130135052
2013-05-30

Interference reduction between RF communications bands

#96
20130135049
2013-05-30

Incremental gain amplifier

#97
20130088378
2013-04-11

RF pulse signal generation switching circuit, RF pulse signal generating circuit, and target object detecting apparatus

#98
20130079065
2013-03-28

MULTI-MODE POWER AMPLIFIER

#99
20130072129
2013-03-21

Methods for determining optimum power supply voltages for radio-frequency power amplifier circuitry

#100
20130049867
2013-02-28

Class of power amplifiers for improved back off operation

#101
20130043944
2013-02-21

Cascaded converged power amplifier

#102
20120326754
2012-12-27

High performance pre-mixer buffer in wireless communications systems

#103
20120306578
2012-12-06

RF AMPLIFIER WITH OPEN CIRCUIT OUTPUT OFF-STATE

#104
20120302186
2012-11-29

Independent PA biasing of a driver stage and a final stage

#105
20120299661
2012-11-29

PA bias power supply undershoot compensation

#106
20120299660
2012-11-29

Selecting PA bias levels of RF PA circuitry during a multislot burst

#107
20120299647
2012-11-29

PA envelope power supply undershoot compensation

#108
20120299646
2012-11-29

Selecting a converter operating mode of a PA envelope power supply

#109
20120299645
2012-11-29

Temperature correcting an envelope power supply signal for RF PA circuitry

#110
20120282869
2012-11-08

RF PA linearity requirements based converter operating mode selection

#111
20120280752
2012-11-08

Embedded RF PA temperature compensating bias transistor

#112
20120280747
2012-11-08

Feedback based buck timing of a direct current (DC)-DC converter

#113
20120280746
2012-11-08

DC-DC converter semiconductor die structure

#114
20120274425
2012-11-01

Wideband active quasi-circulator

#115
20120235736
2012-09-20

Charge pump based power amplifier envelope power supply and bias power supply

#116
20120229210
2012-09-13

Overlay class F choke

#117
20120223774
2012-09-06

Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry

#118
20120223773
2012-09-06

Linear mode and non-linear mode quadrature PA circuitry

#119
20120218043
2012-08-30

Amplifier activation

#120
20120212295
2012-08-23

Power Amplifier Apparatus, and Receiving Apparatus of a User Equipment

#121
20120207252
2012-08-16

Frequency correction of a programmable frequency oscillator by propagation delay compensation

#122
20120184233
2012-07-19

Combined RF detector and RF attenuator with concurrent outputs

#123
20120170690
2012-07-05

Auto configurable 2/3 wire serial interface

#124
20120161877
2012-06-28

PA bias power supply efficiency optimization

#125
20120146727
2012-06-14

Fast power up comparator

#126
20120139644
2012-06-07

Dual use transistor

#127
20120127138
2012-05-24

Output circuit, data driver, and display device

#128
20120105153
2012-05-03

Pop sound reduction circuit and audio circuit having such pop reduction circuit for use in audio amplifier

#129
20120098602
2012-04-26

Power consumption control circuit, amplifier circuit and power consumption control method

#130
20120098595
2012-04-26

Quadrature power amplifier architecture

#131
20120064836
2012-03-15

Amplifier circuit for a ranging transceiver

#132
20120062321
2012-03-15

Power amplifier

#133
20120019325
2012-01-26

CURRENT-MODE AMPLIFIER

#134
20120019323
2012-01-26

Current-mode amplifier

#135
20120007680
2012-01-12

Variable gain amplifier

#136
20110316637
2011-12-29

Amplifier module with multiple operating modes

#137
20110298545
2011-12-08

RF power amplifier device and operating method thereof

#138
20110256838
2011-10-20

Methods for determining optimum power supply voltages for radio-frequency power amplifier circuitry

#139
20110241782
2011-10-06

Power amplifier

#140
20110235689
2011-09-29

Power amplifier and semiconductor integrated circuit

#141
20110210795
2011-09-01

High frequency power amplifier and operating method thereof

#142
20110169573
2011-07-14

Amplifier circuit with step gain

#143
20110169565
2011-07-14

Receiving circuit

#144
20110142263
2011-06-16

System and method for biasing active devices

#145
20110110137
2011-05-12

Leakage current reduction in a power regulator

#146
20110095823
2011-04-28

Incremental gain amplifier

#147
20110068873
2011-03-24

RF power amplifiers with linearization

#148
20110032035
2011-02-10

Amplifier module with multiple operating modes

#149
20110025421
2011-02-03

Step variable gain amplifier

#150
20110018628
2011-01-27

Dynamic bias supply devices

#151
20100327969
2010-12-30

Power amplifier having parallel amplification stages and associated impedance matching networks

#152
20100308921
2010-12-09

Leakage current reduction in a power regulator

#153
20100301942
2010-12-02

Amplifier with bypass switch

#154
20100237948
2010-09-23

System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers

#155
20100237945
2010-09-23

Cascode amplifier with protection circuitry

#156
20100221996
2010-09-02

APPARATUS AND METHOD FOR RF PAM GAIN STATE CONTROL IN A MOBILE COMMUNICATION SYSTEM

#157
20100201449
2010-08-12

Amplifier

#158
20100201436
2010-08-12

Amplifier and source driver utilizing the amplifier

#159
20100197244
2010-08-05

Direct coupled radio frequency (RF) transceiver front end

#160
20100167671
2010-07-01

Wireless Communication Apparatus and Transmission Control Method Thereof

#161
20100120385
2010-05-13

Radio frequency amplification circuit utilizing variable voltage generator

#162
20100109777
2010-05-06

Amplifying circuit

#163
20100060362
2010-03-11

Cascode circuit

#164
20100029227
2010-02-04

Multi-mode configurable transmitter circuit

#165
20090296855
2009-12-03

Transmission circuit for bias control of power amplifier

#166
20090295483
2009-12-03

RF power amplifiers with linearization

#167
20090295472
2009-12-03

Switch-around low noise amplifier

#168
20090270057
2009-10-29

Bias circuit for a radio frequency power-amplifier and method therefor

#169
20090251220
2009-10-08

Radio-frequency power amplifier

#170
20090206932
2009-08-20

Low noise amplifier gain controlled scheme

#171
20090134942
2009-05-28

Radio frequency amplifier with constant gain setting

#172
20080278219
2008-11-13

BIAS SWITCHING CIRCUIT

#173
20080211583
2008-09-04

System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers

#174
20080204145
2008-08-28

Bias control circuit and method of controlling bias of RF power amplifier

#175
20080180176
2008-07-31

Sequential bias-controlled high power amplifier apparatus and method

#176
20080024225
2008-01-31

RF power amplifier

#177
20070285175
2007-12-13

Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique

#178
20070223738
2007-09-27

Volume-based adaptive biasing

#179
20070200624
2007-08-30

Architecture and method for improving efficiency of a class-A power amplifier by dynamically scaling biasing current thereof as well as synchronously compensating gain thereof in order to maintain overall constant gain of the class-A power amplifier at all biasing configurations thereof

#180
20070115065
2007-05-24

Stabilization circuit and multiband amplification circuit

#181
20070096819
2007-05-03

CMOS amplifier

#182
20070024377
2007-02-01

Impedance matching techiques for multi-band or wideband RF amplifiers and associated amplifier designs

#183
20070010218
2007-01-11

Apparatus and method for high efficiency RF power amplification using drain bias adaptation

#184
20060202764
2006-09-14

Bias circuit

#185
20060119435
2006-06-08

Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique

#186
20060091956
2006-05-04

Amplifying a signal using a control modulator that provides a bias resistance

#187
17982826
2025-11-25

Parametric-insensitive edge rate control in switched-power circuits with tailored power supply voltage sensitivity

#188
16734017
2020-12-08

Dynamically controlled auto-ranging current sense circuit

#189
14456975
2018-03-13

Dynamically configurable bias circuit for controlling gain expansion of multi-mode single chain linear power amplifiers