Patents-Review.com
ClassID:

220199 ⎘

H03F2203/7233 - 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 gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier, switched on or off by putting into parallel or not, by choosing between amplifiers by one or more switch(es), being impedance adapted by switching an adapted passive network

Recent Application in this class:
#1
20260149413
2026-05-28

DIFFERENTIAL POWER AMPLIFIER

 #2
20250337366
2025-10-30

AMPLIFICATION CIRCUIT

 #3
20240364269
2024-10-31

Source Switched Split LNA

 #4
20210336584
2021-10-28

Source switched split LNA

 #5
20200259471
2020-08-13

Multi-mode amplifier architectures with resonant structures

 #6
20200144967
2020-05-07

Source switched split LNA

 #7
20190386624
2019-12-19

High-linearity variable gain amplifier with bypass path

 #8
20190214946
2019-07-11

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

 #9
20180302039
2018-10-18

Source switched split LNA

 #10
20180248526
2018-08-30

Amplifier architectures with bypass circuits and resonant structures

 #11
20180205345
2018-07-19

Front end circuit

 #12
20180131339
2018-05-10

High-linearity variable gain amplifier with bypass path

 #13
20180123518
2018-05-03

Multi-mode power amplifiers with phase matching

 #14
20170302236
2017-10-19

Amplification circuit

 #15
20170093339
2017-03-30

Apparatus and methods for multi-mode power amplifiers

 #16
20170063308
2017-03-02

Devices and methods that facilitate power amplifier off state performance

 #17
20170026010
2017-01-26

Amplification circuit

 #18
20160352289
2016-12-01

Front end circuit

 #19
20160065136
2016-03-03

Modular RF matrix switch

 #20
20140227988
2014-08-14

Amplifier and wireless communication device

 #21
20140167853
2014-06-19

Power amplifier

 #22
20140055195
2014-02-27

High efficiency power amplifier architecture for off-peak traffic hours

 #23
20130190036
2013-07-25

Multi-mode bypass driver amplifier with tunable load matching

 #24
20130002349
2013-01-03

Bypass power amplifier for improving efficiency at low power

 #25
20120326784
2012-12-27

Power amplifier

 #26
20120274414
2012-11-01

Isolated zero degree reactive radio frequency high power combiner

 #27
20120200352
2012-08-09

APPARATUS AND METHOD FOR AN INTEGRATED MULTI-MODE MULTI-BAND POWER AMPLIFIER

 #28
20120154043
2012-06-21

High-frequency power amplifier device

 #29
20120126887
2012-05-24

High-efficiency power amplifier with multiple power modes

 #30
20120087282
2012-04-12

WIRELESS COMMUNICATION HIGH-FREQUENCY CIRCUIT AND WIRELESS COMMUNICATION APPARATUS

 #31
20110260794
2011-10-27

High frequency power amplifier

 #32
20110156812
2011-06-30

Multi-band, multi-mode RF transmit amplifier system with separate signal paths for linear and saturated operation

 #33
20110065472
2011-03-17

Apparatus and method for an integrated, multi-mode, multi-band, and multi-stage power amplifier

 #34
20100327969
2010-12-30

Power amplifier having parallel amplification stages and associated impedance matching networks

 #35
20100033241
2010-02-11

High frequency amplifier

 #36
20090273397
2009-11-05

Controlling power with an output network

 #37
20090096527
2009-04-16

Automatic gain control circuit and low noise amplifying circuit

 #38
20090039960
2009-02-12

Low power consuming mixed mode power amplifier

 #39
20080284539
2008-11-20

High frequency circuit, semiconductor device, and high frequency power amplification device

 #40
20080136512
2008-06-12

Dual-mode, dual-load high efficiency RF power amplifier

 #41
20080048774
2008-02-28

High efficiency load insensitive power amplifier

 #42
20080030276
2008-02-07

Multi-mode power amplifier with high efficiency under backoff operation

 #43
20070032216
2007-02-08

Low noise amplifier (LNA) gain switch circuit

 #44
20050078841
2005-04-14

Method and apparatus for resetting a buffer amplifier