ClassID:

220204

H03G1/0005 - CPC Classification

Classification description:

Details of arrangements for controlling amplification Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal

Sub-classes:
Recent Application in this class:
#1
20240340583
2024-10-10

TRANSDUCER PROTECTION SYSTEM AND METHOD

#2
20240340582
2024-10-10

COAXIAL SPEAKER TWEETER TEMPERATURE PROTECTION METHOD AND SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM

#3
20230318529
2023-10-05

Variable gain power amplifiers

#4
20230046588
2023-02-16

Systems and methods for digital predistortion to mitigate power amplifier bias circuit effects

#5
20220171180
2022-06-02

Closed-loop position control of MEMS micromirrors

#6
20220140787
2022-05-05

Variable gain power amplifiers

#7
20210289295
2021-09-16

Speaker amplifier

#8
20210013833
2021-01-14

Variable gain power amplifiers

#9
20200256957
2020-08-13

Laser radar device

#10
20200204422
2020-06-25

Multi-level voltage circuit and related apparatus

#11
20200204131
2020-06-25

Variable gain amplifiers for communication systems

#12
20200112286
2020-04-09

Variable gain power amplifiers

#13
20190319597
2019-10-17

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

#14
20190222937
2019-07-18

Stereo audio system and method

#15
20190207576
2019-07-04

Variable gain amplifiers for communication systems

#16
20190199307
2019-06-27

Constrained nonlinear parameter estimation for robust nonlinear loudspeaker modeling for the purpose of smart limiting

#17
20190097595
2019-03-28

Asymmetric multi-channel audio dynamic range processing

#18
20190089318
2019-03-21

Variable gain amplifier

#19
20180351593
2018-12-06

Apparatus for radio-frequency receiver with reduced power consumption and associated methods

#20
20180294775
2018-10-11

RADIO-FREQUENCY SIGNAL PROCESSING MODULE CAPABLE OF EFFECTIVELY REMOVING POWER INTERFERENCE

#21
20180287578
2018-10-04

Control system for a power amplifier

#22
20180262172
2018-09-13

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

#23
20180234068
2018-08-16

Audio processing apparatus and method for previewing parameter

#24
20180198428
2018-07-12

Low-noise amplifier (LNA) with capacitive attenuator

#25
20180122520
2018-05-03

Incore nuclear instrumentation system

#26
20180091103
2018-03-29

Ripple reduction method for chopper amplifiers

#27
20180035500
2018-02-01

Dimming LED circuit augmenting DC/DC controller integrated circuit

#28
20170331439
2017-11-16

Transmission module, array antenna device including transmission module, and transmission device including transmission module

#29
20170324385
2017-11-09

Method, apparatus and system for back gate biasing for FD-SOI devices

#30
20170288796
2017-10-05

Variable gain power amplifiers

#31
20170230021
2017-08-10

Control system for a power amplifier

#32
20170179956
2017-06-22

Duty cycle correction circuit and duty cycle correction method

#33
20170149412
2017-05-25

Adjustable low-pass filter in a compact low-power receiver

#34
20170085237
2017-03-23

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

#35
20170085226
2017-03-23

Active device and circuits used therewith

#36
20170064447
2017-03-02

Attenuating an input signal

#37
20170005616
2017-01-05

Variable gain power amplifiers

#38
20160234596
2016-08-11

Speaker protection for surround sound systems

#39
20160197582
2016-07-07

Memoryless common-mode insensitive and low pulling VCO

#40
20160072457
2016-03-10

Radio frequency adaptive voltage shaping power amplifier systems and methods

#41
20160020739
2016-01-21

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

#42
20150333701
2015-11-19

Phase-modulated load apparatus and method

#43
20150326185
2015-11-12

RECEIVER WITH VARIABLE GAIN CONTROL TRANSIMPEDANCE AMPLIFIER

#44
20150049874
2015-02-19

Signal processing apparatus and method, program, and data recording medium

#45
20140375395
2014-12-25

Coupler, electronic component, and manufacturing method for electronic component

#46
20140266442
2014-09-18

Voltage controlled amplifier and method of using the same

#47
20140266426
2014-09-18

Self setting power supply using negative output impedance

#48
20140254804
2014-09-11

Systems and methods for protecting a speaker

#49
20140210553
2014-07-31

Dynamic current source for zero-crossing amplifier units for use in high-speed communication circuits

#50
20140210550
2014-07-31

Reverse current prevention

#51
20140210548
2014-07-31

Soft turn-off for boost converters

#52
20140065993
2014-03-06

Adaptive stepped gain amplifier system and method

#53
20130162349
2013-06-27

Look-up table digital predistortion technique for high-voltage power amplifiers in ultrasonic applications

#54
20130141159
2013-06-06

Integrated circuit, wireless communication unit and method for a differential interface for an envelope tracking signal

#55
20130141158
2013-06-06

LDO with distributed output device

#56
20120274407
2012-11-01

LDO with distributed output device

#57
20120081822
2012-04-05

System and method for ESD protection

#58
20120021712
2012-01-26

Compact low-power receiver including transimpedance amplifier, digitally controlled interface circuit, and low pass filter

#59
20100253298
2010-10-07

LDO with distributed output device

#60
20090072906
2009-03-19

High frequency power amplifier circuit and electronic component for high frequency power amplifier

#61
20080174925
2008-07-24

System and method for ESD protection

#62
20080074184
2008-03-27

Amplifier arrangement with controllable gain and method for controlling an amplifier gain

#63
20080068086
2008-03-20

High frequency power amplifier circuit and electronic component for high frequency power amplifier

#64
20060290428
2006-12-28

Variable gain amplifier with temperature compensation and gain linearity enhancement

#65
20060132237
2006-06-22

Linear-in-dB variable gain amplifiers with an adaptive bias current

#66
20050264359
2005-12-01

Programmable automatic signal amplitude control circuit

#67
20050083129
2005-04-21

High frequency power amplifier circuit and electronic component for high frequency power amplifier

#68
15597074
2019-04-23

Variable gain amplifiers for communication systems