ClassID:

219179

H03F1/3288 - 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; Acting on the phase and the amplitude of the input signal to compensate phase shift as a function of the amplitude

Recent Application in this class:
#1
20260121592
2026-04-30

AMPLIFIER DEVICE WITH FEEDBACK AND FEED-FORWARD CONTROL

#2
20260019047
2026-01-15

AMPLIFIER CIRCUIT AND AMPLIFICATION METHOD

#3
20250266793
2025-08-21

MODULE, APPARATUS, METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM FOR LINEAR POWER-AMPLIFICATION USING CLASS-AB POWER AMPLIFIERS

#4
20230122632
2023-04-20

Signal compensation with summed error signals

#5
20230085041
2023-03-16

AMPLIFIER AND AMPLIFICATION METHOD

#6
20230082415
2023-03-16

PHASE AND AMPLITUDE ERROR CORRECTION IN A TRANSMISSION CIRCUIT

#7
20220368293
2022-11-17

TIME-ADVANCED PHASE CORRECTION IN A POWER AMPLIFIER CIRCUIT

#8
20220094305
2022-03-24

NON-CONTACT SENSING NODE, SYSTEMS AND METHODS OF REMOTE SENSING

#9
20200322209
2020-10-08

Method, device for compensating imbalance between I path and Q path of receiver, and non-transitory computer readable storage medium

#10
20200280288
2020-09-03

Distortion compensation apparatus and distortion compensation method

#11
20200228065
2020-07-16

Doherty combiner

#12
20190280654
2019-09-12

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#13
20180138868
2018-05-17

METHOD AND SYSTEM FOR LINEARIZING AN AMPLIFIER USING TRANSISTOR-LEVEL DYNAMIC FEEDBACK

#14
20170040954
2017-02-09

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#15
20150349814
2015-12-03

Distortion-compensation device and distortion-compensation method

#16
20150214908
2015-07-30

Power amplifier

#17
20150207467
2015-07-23

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#18
20150070242
2015-03-12

Phase shifter, predistorter, and phased array antenna

#19
20150028946
2015-01-29

Amplitude modulation to phase modulation (AMPM) distortion compensation

#20
20140105327
2014-04-17

Method and apparatus for predicting signal characteristics for a nonlinear power amplifier

#21
20130336422
2013-12-19

Method for calibrating a linearizer and linearized electronic component

#22
20130271212
2013-10-17

Digital Predistorter (DPD) structure based on dynamic deviation reduction (DDR)-based volterra series

#23
20130257531
2013-10-03

Amplifying device and method for controlling the same

#24
20130076418
2013-03-28

System and Method for Calibration of Timing Mismatch for Envelope Tracking Transmit Systems

#25
20130052960
2013-02-28

Calibration systems for wireless electronic devices

#26
20110234314
2011-09-29

Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers

#27
20090256630
2009-10-15

Method of power amplifier predistortion adaptation using compression detection

#28
20090195309
2009-08-06

Distortion compensator apparatus, amplifier apparatus, transmitter, and method of compensating distortion

#29
20080297245
2008-12-04

Delay modulator pre-distortion circuit for an amplifier

#30
20080051042
2008-02-28

Adaptive predistortion for controlling an open loop power amplifier

#31
20070287393
2007-12-13

System and method for providing a transmitter for polar modulation and power amplifier linearization

#32
20070135065
2007-06-14

Predistortion system and amplifier for addressing group delay modulation

#33
20070087704
2007-04-19

Predistorter for use in a wireless transmitter

#34
20060098757
2006-05-11

Device and method for predistorting and input signal

#35
20060071711
2006-04-06

Arbitrary waveform predistortion table generation

#36
20050073361
2005-04-07

Distortion compensator

#37
20050052241
2005-03-10

Frequency-selective phase/delay control for an amplifier

#38
16903378
2022-06-07

Digital communications circuits and systems