ClassID:

219177

H03F1/3276 - CPC Classification

Classification description:

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements; Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode

Recent Application in this class:
#1
20250279796
2025-09-04

Linearization Technique for PAM-4 CMOS Electrical-to-Optical Interface

#2
20250279795
2025-09-04

SUPPLY VOLTAGE BASED ANALOG PREDISTORTION (APD) CIRCUIT FOR POWER AMPLIFIER

#3
20250175128
2025-05-29

POWER AMPLIFIER

#4
20220393709
2022-12-08

SIGNALING OF INFORMATION FOR NON-LINEARITY MODEL

#5
20220385515
2022-12-01

SIGNALING OF INFORMATION FOR NON-LINEARITY MODEL

#6
20220131506
2022-04-28

Configurable non-linear filter for digital pre-distortion

#7
20220115989
2022-04-14

Common mode rejection for differential receiver in high speed data channel

#8
20210044259
2021-02-11

Radio frequency receiver, radio frequency transmitter, and communications device

#9
20200252032
2020-08-06

Compensating for transmitter nonlinearities

#10
20200204120
2020-06-25

Amplifier devices with phase distortion compensation and methods of manufacture thereof

#11
20190319590
2019-10-17

Predistorter for compensating linearity of an amplifier

#12
20190296929
2019-09-26

Digital predistortion for a frequency-selective channel

#13
20190199295
2019-06-27

Feedback in MISO systems

#14
20190019790
2019-01-17

Field effect transistor (FET) structure with integrated gate connected diodes

#15
20190007001
2019-01-03

Method for improving linearity of radio frequency power amplifier, compensation circuit and communications terminal

#16
20180316367
2018-11-01

Linearization of active antenna array

#17
20180234057
2018-08-16

Predistorter for compensating linearity of an amplifier

#18
20180219578
2018-08-02

Crosstalk correction using pre-compensation

#19
20170207758
2017-07-20

Power amplifier system and associated control circuit and control method

#20
20170200713
2017-07-13

Field effect transistor (FET) structure with integrated gate connected diodes

#21
20170063310
2017-03-02

Linearizer and radio frequency power amplifier using same

#22
20160204745
2016-07-14

Linear amplifier using nonlinear amplifying stage

#23
20160118942
2016-04-28

Predistortion in radio frequency transmitter

#24
20160065400
2016-03-03

Adaptive linearizer

#25
20160056881
2016-02-25

Multi-stage linearizer

#26
20150340999
2015-11-26

Linearizer

#27
20150229279
2015-08-13

Transmitter with predistorter

#28
20150097619
2015-04-09

Amplifier

#29
20130127541
2013-05-23

Analog pre-distortion linearizer

#30
20120149316
2012-06-14

Radio frequency power amplifier with linearizing predistorter

#31
20120139629
2012-06-07

Third order intermodulation cancellation by in-line generated signal

#32
20110169566
2011-07-14

Predistorition linearizer with bridge topology having an equalizer stage for each bridge arm

#33
20110068865
2011-03-24

V-band high-power transmitter with integrated power combiner

#34
20100225389
2010-09-09

High efficiency RF system linearizer using controlled complex nonlinear distortion generators

#35
20100054364
2010-03-04

Digital pre-distortion technique using nonlinear filters

#36
20100020900
2010-01-28

Digital pre-distortion technique using nonlinear filters

#37
20100001801
2010-01-07

Intermodulation signal generator of power amplifier and pre-distortion linearizer having the same

#38
20090322424
2009-12-31

Power amplifier with pre-distorter

#39
20090315621
2009-12-24

Amplifier with gain expansion stage

#40
20090256631
2009-10-15

Providing pre-distortion to an input signal

#41
20080303591
2008-12-11

Amplifying circuit and associated linearity improving method

#42
20080157871
2008-07-03

Predistortion linearization device with adjustable amplitude and shape

#43
20080150774
2008-06-26

Non-linear processing of signals

#44
20080150633
2008-06-26

Method and system for reducing AM/PM distortion in a polar amplifier

#45
20080095265
2008-04-24

Digital pre-distortion technique using non-linear filters

#46
20080088392
2008-04-17

Attenuator

#47
20080058001
2008-03-06

Power amplifier system and mobile phone terminal using same

#48
20080024185
2008-01-31

Lossy linearizers for analog optical transmitters

#49
20080018398
2008-01-24

Tunable predistorter

#50
20070297803
2007-12-27

In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment

#51
20070285162
2007-12-13

Highly linear low-noise amplifiers

#52
20070262816
2007-11-15

Distortion compensation circuit

#53
20070241815
2007-10-18

Linearizer

#54
20070229154
2007-10-04

Differential amplifier with active post-distortion linearization

#55
20070222521
2007-09-27

Power amplifier

#56
20070182485
2007-08-09

Predistorter for Linearization of Power Amplifier

#57
20070164824
2007-07-19

Amplifier

#58
20070164818
2007-07-19

High efficiency amplifier

#59
20070103845
2007-05-10

Circuits and methods for canceling signal dependent capacitance

#60
20070030076
2007-02-08

Amplifier with active post-distortion linearization

#61
20070018730
2007-01-25

Apparatus and method reducing non-linearity in an output signal of an amplifier device

#62
20070010215
2007-01-11

Apparatus for removing distortions created by an amplifier

#63
20060267678
2006-11-30

Non-linear circuit, radio communication device, and non-linear amplification method

#64
20060197595
2006-09-07

Predistorter for power amplifier

#65
20060197577
2006-09-07

Lossy linearizers for analog optical transmitters

#66
20060164167
2006-07-27

Linear commutating amplifier

#67
20060114066
2006-06-01

Distortion compensating circuit having negative gain deviation, power amplifier using the same, and communication device having power amplifier

#68
20060108660
2006-05-25

Amplifier circuit, control method of the same, and amplifier circuit module

#69
20060078065
2006-04-13

Digital pre-distortion technique using nonlinear filters

#70
20060061418
2006-03-23

Predistortion circuit, low-distortion power amplifier, and control methods therefor

#71
20060055458
2006-03-16

Doherty amplifier

#72
20060033568
2006-02-16

Predistortion linearizing

#73
20050270094
2005-12-08

Multistage amplifying devices, and reception device and transmission device using the same

#74
20050237113
2005-10-27

Predistortion circuit, low-distortion power amplifier, and control methods therefor

#75
20050212595
2005-09-29

Distortion compensating device and power amplifying device with distortion compensating function

#76
20050164649
2005-07-28

Low-noise differential bias circuit and differential signal processing apparatus

#77
20050140439
2005-06-30

Predistortion linearizer for power amplifier

#78
20050111575
2005-05-26

Amplifier linearization using non-linear predistortion

#79
20050035818
2005-02-17

Predistortion circuit, low-distortion power amplifier, and control methods therefor

#80
16785168
2020-12-29

Configurable dual vacuum tube triode amplifier