ClassID:

220266

H03G3/342 - CPC Classification

Classification description:

Gain control in amplifiers or frequency changers without distortion of the input signal; Automatic control in amplifiers having semiconductor devices; Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems Muting when some special characteristic of the signal is sensed which distinguishes it from noise, e.g. using speech detector

Recent Application in this class:
#1
20260155802
2026-06-04

AUTOMATIC VOLUME CONTROL FOR GAME AND CHAT AUDIO

#2
20250220372
2025-07-03

Audio Playback Settings for Voice Interaction

#3
20250167746
2025-05-22

Headset Communication System

#4
20240378014
2024-11-14

METHODS AND DEVICES FOR CONTROLLING AUDIO PARAMETERS

#5
20240305258
2024-09-12

SQUELCH DETECTOR

#6
20240235510
2024-07-11

AUTOMATIC VOLUME CONTROL FOR A HEARING DEVICE

#7
20230379644
2023-11-23

Audio playback settings for voice interaction

#8
20230268900
2023-08-24

Automatic volume control for combined game and chat audio

#9
20230069810
2023-03-02

Audio Playback Settings for Voice Interaction

#10
20220272471
2022-08-25

Audio capture in presence of noise

#11
20220129235
2022-04-28

Methods and devices for controlling audio parameters

#12
20210297050
2021-09-23

Automatic volume control for combined game and chat audio

#13
20210226599
2021-07-22

Headset communication system

#14
20200373896
2020-11-26

Automatic volume control for combined game and chat audio

#15
20200204938
2020-06-25

Audio playback settings for voice interaction

#16
20190227614
2019-07-25

Audio circuit and method for detecting sound activity

#17
20190222928
2019-07-18

Intelligent conversation control in wearable audio systems

#18
20190214958
2019-07-11

Automatic volume control for combined game and chat audio

#19
20190028079
2019-01-24

System and method for controlling volume

#20
20180218744
2018-08-02

Auto-mute audio processing

#21
20170288624
2017-10-05

Automatic volume control for combined game and chat audio

#22
20170024184
2017-01-26

Control method and control device

#23
20160079947
2016-03-17

Multiband ducker

#24
20150382097
2015-12-31

Hearing device, method and system for automatically enabling monitoring mode within said hearing device

#25
20150326913
2015-11-12

Electronic device audio volume reduction in response to audio communication request

#26
20150326196
2015-11-12

Method and electronic device for controlling volume

#27
20150163611
2015-06-11

System and method for resetting amplifier of AVN system for vehicle

#28
20150054646
2015-02-26

Vehicle-mounted electronic device

#29
20140093094
2014-04-03

Method and device for personalized voice operated control

#30
20130251016
2013-09-26

Dual squelch detectors and methods for low power states

#31
20120307150
2012-12-06

Electronic device audio volume reduction in response to audio communication request

#32
20120280719
2012-11-08

Apparatus and method for selectively enabling and disabling a squelch circuit across AHCI and SATA power states

#33
20120065754
2012-03-15

Pattern detection circuitry

#34
20110213553
2011-09-01

Navigation device

#35
20110085679
2011-04-14

Intelligent selective system mute

#36
20100329391
2010-12-30

INFORMATION DETECTING APPARATUS AND METHOD

#37
20090287329
2009-11-19

Audio processor

#38
20090281643
2009-11-12

Audio processing device, audio processing method, and program

#39
20090114080
2009-05-07

Voice signal blocker, talk assisting system using the same and musical instrument equipped with the same

#40
20090083587
2009-03-26

Apparatus and method for selectively enabling and disabling a squelch circuit across AHCI and SATA power states

#41
20090010444
2009-01-08

Device and method for controlling operation of an earpiece based on voice activity in the presence of audio content

#42
20080268802
2008-10-30

RADIO RECEIVER THAT CHANGES FUNCTION ACCORDING TO THE OUTPUT OF AN INTERNAL VOICE-ONLY DETECTOR

#43
20080240462
2008-10-02

Pattern detection circuitry

#44
20080103764
2008-05-01

Wireless communication apparatus and wireless communication method

#45
20080089530
2008-04-17

Method and system for automatically muting headphones

#46
20070242171
2007-10-18

Muting device and muting method

#47
20070072652
2007-03-29

Controlling power output of a transceiver

#48
20070064953
2007-03-22

SPEAKER PROTECTION CIRCUIT

#49
20070014420
2007-01-18

Auto-mute command stream by voice-activated remote control

#50
20060153398
2006-07-13

In-vehicle entertainment system

#51
20050266813
2005-12-01

Radio receiver that changes function according to the output of an internal voice-only detector

#52
20050221868
2005-10-06

Method and apparatus for volume reduction in a vehicle

#53
20050180583
2005-08-18

Advanced mute function

#54
20050100180
2005-05-12

Audio system, audio apparatus, and method for performing audio signal output processing

#55
15918592
2019-04-02

Intelligent conversation control in wearable audio systems