ClassID:

219701

H03F2200/99 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A diode as rectifier being used as a detecting circuit in an amplifying circuit

Recent Application in this class:
#1
20230396225
2023-12-07

Multiple-Port Signal Boosters

#2
20210194441
2021-06-24

Gain compression compensation circuit of radio frequency power amplifier

#3
20200204132
2020-06-25

MULTIPLE-PORT SIGNAL BOOSTERS

#4
20200168734
2020-05-28

Self-biasing and self-sequencing of depletion mode transistors

#5
20190386625
2019-12-19

MULTIPLE-PORT SIGNAL BOOSTER

#6
20190245085
2019-08-08

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

#7
20180159484
2018-06-07

Linear CMOS PA with low quiescent current and boosted maximum linear output power

#8
20160269826
2016-09-15

Rectifier circuit for monitoring dc offset of a single-supply audio power amplifier

#9
20160028469
2016-01-28

Multiple-port signal boosters

#10
20150042405
2015-02-12

Power detection circuit and RF signal amplification circuit having the same

#11
20120208476
2012-08-16

High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier

#12
20120195352
2012-08-02

Fast envelope system calibration

#13
20120019319
2012-01-26

Amplitude error de-glitching circuit and method of operating

#14
20120007675
2012-01-12

Power amplifier

#15
20120001693
2012-01-05

Power amplifier amplitude modulator system and method

#16
20110189966
2011-08-04

Power amplifier controller circuit

#17
20110140777
2011-06-16

RF power amplifier controller circuit including calibrated phase control loop

#18
20110121894
2011-05-26

APPARATUS AND METHOD FOR POWER ADDED EFFICIENCY OPTIMIZATION OF HIGH AMPLIFICATION APPLICATIONS

#19
20110110135
2011-05-12

Wave detector circuit and high-frequency circuit

#20
20110068873
2011-03-24

RF power amplifiers with linearization

#21
20110043282
2011-02-24

RF power amplifier system with impedance modulation

#22
20110006846
2011-01-13

HIGH-FREQUENCY AMPLIFIER

#23
20100321109
2010-12-23

Amplifier compression adjustment circuit

#24
20100311365
2010-12-09

Power amplifier controller with polar transmitter

#25
20100301934
2010-12-02

RF power amplifier controller circuit with compensation for output impedance mismatch

#26
20100271123
2010-10-28

ADAPTIVE DIGITAL PREDISTORTION OF COMPLEX MODULATED WAVEFORM USING LOCALIZED PEAK FEEDBACK FROM THE OUTPUT OF A POWER AMPLIFIER

#27
20100201402
2010-08-12

Phase error de-glitching circuit and method of operating

#28
20100194476
2010-08-05

Amplifier compression adjustment circuit

#29
20100194440
2010-08-05

Phase error de-glitching circuit and method of operating

#30
20100164632
2010-07-01

Power amplifier

#31
20100060357
2010-03-11

RF power amplifier system with impedance modulation

#32
20090309663
2009-12-17

Power amplifiers having improved protection against avalanche current

#33
20090295483
2009-12-03

RF power amplifiers with linearization

#34
20090179703
2009-07-16

High efficiency power amplifier

#35
20090174473
2009-07-09

Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters

#36
20090153248
2009-06-18

Amplifier with dynamic bias

#37
20090091391
2009-04-09

Configurable feedback for an amplifier

#38
20090081968
2009-03-26

Power amplifier controller with polar transmitter

#39
20090066439
2009-03-12

Input circuitry for transistor power amplifier and method for designing such circuitry

#40
20090021282
2009-01-22

High-frequency signal detector

#41
20090015324
2009-01-15

Power amplifier amplitude modulator system and method

#42
20090011728
2009-01-08

DCDC converter unit, power amplifier, and base station using the same

#43
20080284519
2008-11-20

Apparatus and method for power added efficiency optimization of high amplification applications

#44
20080242246
2008-10-02

RF transmitter with compensation of differential path delay

#45
20080061875
2008-03-13

System and method for power amplifier output power control

#46
20080061874
2008-03-13

System and method for power amplifier output power control

#47
20080031382
2008-02-07

Low distortion radio frequency (RF) limiter

#48
20080007341
2008-01-10

Automatic bias control circuit for reduced current consumption in a linear power amplifier

#49
20070296504
2007-12-27

Integrated implementation of a voltage boost follower and method therefor

#50
20070290749
2007-12-20

Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion

#51
20070290748
2007-12-20

Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters

#52
20070218848
2007-09-20

Phase error de-glitching circuit and method of operating

#53
20070184796
2007-08-09

Amplifier compression controller circuit

#54
20070184795
2007-08-09

Amplitude error de-glitching circuit and method of operating

#55
20070184794
2007-08-09

RF power amplifier controller circuit including calibrated phase control loop

#56
20070184793
2007-08-09

RF power amplifier controller circuit with compensation for output impedance mismatch

#57
20070184792
2007-08-09

RF power amplifier controller circuit

#58
20070184791
2007-08-09

Power amplifier controller circuit

#59
20070115053
2007-05-24

Method and arrangement for optimizing efficiency of a power amplifier

#60
20070080748
2007-04-12

System and method for increasing accuracy of transmitter power detection over a larger range of output power levels

#61
20070069820
2007-03-29

Electronic parts for high frequency power amplifier

#62
20070001766
2007-01-04

Automatic bias control circuit for linear power amplifiers

#63
20060280261
2006-12-14

System and method for controlling power output from a power amplifier

#64
20060267688
2006-11-30

High frequency power amplifier, transmitter and mobile communication terminal using the power amplifier

#65
20060240788
2006-10-26

Transmission output control circuit, and wireless device using the same

#66
20060066396
2006-03-30

Circuit for power amplification

#67
20060061416
2006-03-23

High frequency power amplifier and transmitter

#68
20050186922
2005-08-25

Mobile-communication equipment and transmission power control method

#69
20050083135
2005-04-21

Integrated circuit

#70
20050059362
2005-03-17

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