ClassID:

219705

H03F2201/3206 - CPC Classification

Classification description:

Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by; Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion Multiple channels are combined and amplified by only one amplifier

Recent Application in this class:
#1
20260121589
2026-04-30

SIMILAR COMBINATION AND CANCELLATION POWER AMPLIFIER CIRCUIT

#2
20200358640
2020-11-12

MODULATION AGNOSTIC DIGITAL HYBRID MODE POWER AMPLIFIER SYSTEM AND METHOD

#3
20190115881
2019-04-18

Power amplifying device

#4
20180227152
2018-08-09

Modulation agnostic digital hybrid mode power amplifier system and method

#5
20170125533
2017-05-04

SEMICONDUCTOR APPARATUS

#6
20160117430
2016-04-28

Baseband equivalent volterra series for behavioral modeling and digital predistortion of wideband transmitters

#7
20160079933
2016-03-17

Baseband equivalent volterra series for digital predistortion in multi-band power amplifiers

#8
20150333716
2015-11-19

METHOD AND APPARATUS FOR PERFORMING SIGNAL AMPLIFYING WITH AID OF SWITCHING CONTROL

#9
20150171798
2015-06-18

Switchable multi-output low-noise amplifier with distortion cancellation

#10
20150123735
2015-05-07

Reduced bandwith of signal in an envelope path for envelope tracking system

#11
20150016567
2015-01-15

Digital pre-distortion systems in transmitters

#12
20150010110
2015-01-08

Modulation agnostic digital hybrid mode power amplifier system and method

#13
20140219174
2014-08-07

Remote radio head unit system with wideband power amplifier and method

#14
20140187184
2014-07-03

RF power transmission, modulation, and amplification embodiments

#15
20130033313
2013-02-07

RF power transmission, modulation, and amplification embodiments

#16
20120057650
2012-03-08

Transmitting a signal from a power amplifier

#17
20110158081
2011-06-30

Remote radio head unit system with wideband power amplifier and method

#18
20110156815
2011-06-30

Modulation agnostic digital hybrid mode power amplifier system and method

#19
20110064171
2011-03-17

Multi-carrier amplifier linearization system and method

#20
20100272293
2010-10-28

Amplifier circuit audio circuit and electronic device

#21
20100148745
2010-06-17

Wireless Communication Apparatus

#22
20100097138
2010-04-22

RF power transmission, modulation, and amplification embodiments

#23
20100073085
2010-03-25

Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodes

#24
20090189691
2009-07-30

Method and apparatus for reducing intermodulation distortion in an electronic device having an amplifier circuit

#25
20080272841
2008-11-06

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for extending RF transmission bandwidth

#26
20070247222
2007-10-25

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for gain and phase control

#27
20070247221
2007-10-25

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning

#28
20070247220
2007-10-25

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning

#29
20070247217
2007-10-25

Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning

#30
20070096806
2007-05-03

RF power transmission, modulation, and amplification embodiments, including control circuitry for controlling power amplifier output stages

#31
20070090874
2007-04-26

Controlling a power amplifier to transition among amplifier operational classes according to at least an output signal waveform trajectory

#32
20060105715
2006-05-18

Radio communication apparatus

#33
20050164656
2005-07-28

Distortion compensation amplifying apparatus and base station

#34
18326897
2023-10-03

Public voltage compensation method and display panel