ClassID:

220332

H03G2201/106 - CPC Classification

Classification description:

Indexing scheme relating to subclass; Gain control characterised by the type of controlled element being attenuating element

Recent Application in this class:
#1
20260012150
2026-01-08

ATTENUATOR CIRCUIT AND OUTPUT LOAD CIRCUIT

#2
20250193597
2025-06-12

AUDIO SIGNAL PROCESSING DEVICE, AUDIO SIGNAL PROCESSING METHOD, AND RECORDING MEDIUM

#3
20250167767
2025-05-22

ATTENUATORS FOR RADIO-FREQUENCY APPLICATIONS

#4
20250088162
2025-03-13

Power Amplifier Self-Heating Compensation Circuit

#5
20240405738
2024-12-05

Amplifier Power Attenuator and Closed Loop Operation

#6
20240056045
2024-02-15

Amplifier power attenuator and closed loop operation

#7
20230353101
2023-11-02

Power limiter configuration for audio signals

#8
20230084770
2023-03-16

Power amplifier self-heating compensation circuit

#9
20220407472
2022-12-22

Power limiter configuration for audio signals

#10
20220368290
2022-11-17

Power limiter configuration for audio signals

#11
20220271783
2022-08-25

Enhancing TX-TX isolation through digital pre-compensation

#12
20220239396
2022-07-28

Booster gain adjustment based on user equipment (UE) need

#13
20220123703
2022-04-21

Attenuator arrangement

#14
20220069778
2022-03-03

Power limiter configuration for audio signals

#15
20220052654
2022-02-17

Power limiter configuration for audio signals

#16
20210211110
2021-07-08

Power amplifier self-heating compensation circuit

#17
20210167844
2021-06-03

High gain active relay antenna system

#18
20210152937
2021-05-20

System and method for digital signal processing

#19
20210111685
2021-04-15

Multi-input amplifier with individual bypass paths

#20
20210050823
2021-02-18

Power limiter configuration for audio signals

#21
20210006214
2021-01-07

Amplifying apparatus

#22
20200274508
2020-08-27

Amplifier circuit, front-end circuit, and receiver circuit

#23
20200252723
2020-08-06

Power limiter configuration for audio signals

#24
20200252720
2020-08-06

Power limiter configuration for audio signals

#25
20200252719
2020-08-06

Power limiter configuration for audio signals

#26
20200252033
2020-08-06

Power limiter configuration for audio signals

#27
20200228080
2020-07-16

Apparatus including electronic circuit for controlling gain of signal

#28
20200153400
2020-05-14

Distortion imparting device and distortion imparting method

#29
20200136718
2020-04-30

High gain active relay antenna system

#30
20200112381
2020-04-09

Booster gain adjustment based on user equipment (UE) need

#31
20200076391
2020-03-05

Power amplifier self-heating compensation circuit

#32
20200076385
2020-03-05

Variable gain amplifier embedded in a reception chain

#33
20200076377
2020-03-05

Single-phase differential conversion circuit, signal processing method for use therewith, and reception apparatus

#34
20200007102
2020-01-02

Multi-input amplifier with variable gain for individual inputs

#35
20190386624
2019-12-19

High-linearity variable gain amplifier with bypass path

#36
20190341895
2019-11-07

Amplifier system with digital switched attenuator

#37
20190334493
2019-10-31

WIDE DYNAMIC RANGE AMPLIFIER SYSTEM

#38
20190280672
2019-09-12

Attenuator

#39
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#40
20190229692
2019-07-25

Audio signal processor and method of processing audio signal

#41
20190190623
2019-06-20

Reducing impedance discontinuities on a shared medium

#42
20190190476
2019-06-20

Power amplifier circuit

#43
20190190455
2019-06-20

Transmission unit

#44
20190181805
2019-06-13

Phase shift and attenuation circuits for use with multiple-path amplifiers

#45
20190168013
2019-06-06

Systems for controlling power to differently loaded antenna arrays

#46
20190036622
2019-01-31

Modular multi-channel RF calibration architecture for linearization

#47
20190020950
2019-01-17

System and method for digital signal processing

#48
20190020374
2019-01-17

Contactless communication device with differential receiver input voltage stabilization

#49
20180375477
2018-12-27

Phase shift and attenuation circuits for use with multiple-path amplifiers

#50
20180358935
2018-12-13

Total harmonic distortion (THD) controlled clip detector and automatic gain limiter (AGL)

#51
20180337659
2018-11-22

Attenuator

#52
20180337641
2018-11-22

Reduction of second-order non-linear distortion in a wideband communication system

#53
20180316327
2018-11-01

Power amplifier self-heating compensation circuit

#54
20180302110
2018-10-18

Circuit arrangement and method for attenuation compensation in an antenna signal link

#55
20180234059
2018-08-16

LOW NOISE AMPLIFIER WITH HYBRID TERMINATION AND VARIABLE GAIN

#56
20180212578
2018-07-26

Power amplification module

#57
20180191310
2018-07-05

Total harmonic distortion (THD) controlled clip detector and automatic gain limiter (AGL)

#58
20180183409
2018-06-28

Switched capacitor based digital step attenuator

#59
20180175807
2018-06-21

LNA with programmable linearity

#60
20180159480
2018-06-07

Phase shift and attenuation circuits for use with multiple-path amplifiers

#61
20180152158
2018-05-31

Attenuator device in a radio frequency transmission stage

#62
20180138990
2018-05-17

Reducing impedance discontinuities on a shared medium

#63
20180138878
2018-05-17

Wide dynamic range amplifier system

#64
20180138874
2018-05-17

Amplifier system with digital switched attenuator

#65
20180131350
2018-05-10

Phase-switch-equipped variable amplification device and phase shifter

#66
20180131339
2018-05-10

High-linearity variable gain amplifier with bypass path

#67
20180131338
2018-05-10

Variable attenuation device, phase-switching variable attenuation device, and phase shifter

#68
20180123538
2018-05-03

Source follower based envelope tracking for power amplifier biasing

#69
20180091103
2018-03-29

Ripple reduction method for chopper amplifiers

#70
20180062621
2018-03-01

Attenuators having phase shift and gain compensation circuits

#71
20180062600
2018-03-01

Multi-input amplifier with programmable embedded attenuators

#72
20170359046
2017-12-14

Amplifier

#73
20170338774
2017-11-23

Amplifier

#74
20170324431
2017-11-09

Circuit arrangement and method for attenuation compensation in an antenna signal link

#75
20170317651
2017-11-02

System and method for close-down pop reduction

#76
20170264253
2017-09-14

Power amplifier with input power protection circuits

#77
20170230022
2017-08-10

Apparatus and method for improving nonlinearity of power amplifier in wireless communication system

#78
20170230012
2017-08-10

Radio frequency (RF) amplifiers with voltage limiting using non-linear feedback

#79
20170163229
2017-06-08

Power amplification module

#80
20170077874
2017-03-16

Phase shift and attenuation circuits for use with multiple-path amplifiers

#81
20170064447
2017-03-02

Attenuating an input signal

#82
20130194023
2013-08-01

Adjustable power splitter and corresponding methods and apparatus

#83
20050242875
2005-11-03

High efficiency linear amplifier employing dynamically controlled back off

#84
16262387
2020-12-08

Techniques for programmable gain attenuation in wideband matching networks with enhanced bandwidth

#85
15591549
2017-11-14

Extracting a common signal from multiple audio signals

#86
15582620
2019-03-26

Stepped attenuation circuit with constant decibel steps

#87
15445811
2018-08-21

Power amplifier self-heating compensation circuit

#88
15374803
2017-09-05

Amplifier devices with envelope signal shaping for gate bias modulation