Patents-Review.com
ClassID:

219744 ⎘

H03F2203/21175 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers An output signal of a power amplifier being on/off switched

Recent Application in this class:
#1
20230016198
2023-01-19

Multi-band power amplifier module

 #2
20210021243
2021-01-21

Multiphase buck-boost amplifier

 #3
20200259472
2020-08-13

Biasing an amplifier using a mirror bias signal

 #4
20200195208
2020-06-18

Multi-band power amplifier module

 #5
20200127619
2020-04-23

DEVICES AND METHODS RELATED TO VARIABLE LOAD POWER AMPLIFIER SUPPORTING DUAL-MODE ENVELOPE TRACKING AND AVERAGE POWER TRACKING PERFORMANCE

 #6
20190319593
2019-10-17

Multiphase buck-boost amplifier

 #7
20180337643
2018-11-22

Multi-band power amplifier module

 #8
20180287573
2018-10-04

Variable load power amplifier supporting dual-mode envelope tracking and average power tracking performance

 #9
20180226982
2018-08-09

Broadband digital beam forming system including wavefront multiplexers and narrowband digital beam forming modules

 #10
20180226925
2018-08-09

Power amplifier bias circuit with a mirror device to provide a mirror bias signal

 #11
20180062592
2018-03-01

Reconfigurable power amplifier

 #12
20180048273
2018-02-15

Selective high and low power amplifier switch architecture

 #13
20170373746
2017-12-28

Flexible multi-channel amplifiers via wavefront muxing techniques

 #14
20170063389
2017-03-02

Broadband digital beam forming system including wavefront multiplexers and narrowband digital beam forming modules

 #15
20160226448
2016-08-04

2G support for 2G and 3G/4G envelope tracking modulator

 #16
20160142027
2016-05-19

Amplifier and related method

 #17
20160094192
2016-03-31

Variable load power amplifier supporting dual-mode envelope tracking and average power tracking performance

 #18
20160094189
2016-03-31

Power amplifier bias circuit

 #19
20160036400
2016-02-04

Integrated circuit chip for receiver collecting signals from satellites

 #20
20160028353
2016-01-28

Systems, circuits and methods related to low power efficiency improvement in multi-mode multi-band power amplifiers

 #21
20150349720
2015-12-03

Power amplifiers with signal conditioning

 #22
20150249462
2015-09-03

System for processing data streams

 #23
20150146884
2015-05-28

Circuit for suppressing audio output noise and audio output circuit

 #24
20150048887
2015-02-19

AMPLIFIER CIRCUIT

 #25
20140167853
2014-06-19

Power amplifier

 #26
20140022984
2014-01-23

Flexible multi-channel amplifiers via wavefront muxing techniques

 #27
20130265108
2013-10-10

Extremely high frequency dual-mode class AB power amplifier

 #28
20130259267
2013-10-03

Audio amplifier apparatus

 #29
20130190036
2013-07-25

Multi-mode bypass driver amplifier with tunable load matching

 #30
20120319885
2012-12-20

System for processing data streams

 #31
20120319772
2012-12-20

Flexible multi-channel amplifiers via wavefront muxing techniques

 #32
20120207252
2012-08-16

Frequency correction of a programmable frequency oscillator by propagation delay compensation

 #33
20120206201
2012-08-16

Semiconductor device

 #34
20120001695
2012-01-05

Radio frequency power amplifier

 #35
20110316637
2011-12-29

Amplifier module with multiple operating modes

 #36
20110316628
2011-12-29

Complimentary single-ended-input OTA-C universal filter structures

 #37
20110250854
2011-10-13

Reconfigurable wireless transmission system

 #38
20110249770
2011-10-13

Passive transmitter architecture with switchable outputs for wireless applications

 #39
20110241782
2011-10-06

Power amplifier

 #40
20110032035
2011-02-10

Amplifier module with multiple operating modes

 #41
20100273535
2010-10-28

RADIO-FREQUENCY POWER AMPLIFIER DEVICE AND WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME

 #42
20100117738
2010-05-13

Multilayer amplifier module

 #43
20070046371
2007-03-01

Power amplifier

 #44
20050186919
2005-08-25

Switch apparatus, switchable power amplification apparatus, and mobile communication terminal apparatus using the same