ClassID:

220311

H03G9/18 - CPC Classification

Classification description:

Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Recent Application in this class:
#1
20250244946
2025-07-31

DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS

#2
20240168706
2024-05-23

Dynamic range control for a wide variety of playback environments

#3
20230075445
2023-03-09

Dynamic range control for a wide variety of playback environments

#4
20230006628
2023-01-05

AMPLITUDE LIMITING CIRCUIT FOR SOUND SIGNAL

#5
20220199101
2022-06-23

Dialogue enhancement in audio codec

#6
20210343308
2021-11-04

Distortion reducing multi-band compressor with dynamic thresholds based on scene switch analyzer guided distortion audibility model

#7
20210318848
2021-10-14

Dynamic range control for a wide variety of playback environments

#8
20200293272
2020-09-17

Dynamic range control for a wide variety of playback environments

#9
20190391782
2019-12-26

METHOD AND SYSTEM OF PROCESSING AN AUDIO RECORDING FOR FACILITATING PRODUCTION OF COMPETITIVELY LOUD MASTERED AUDIO RECORDING

#10
20190310822
2019-10-10

Dynamic range control for a wide variety of playback environments

#11
20190222188
2019-07-18

Information processing device and information processing method

#12
20190199309
2019-06-27

Techniques for distortion reducing multi-band compressor with timbre preservation

#13
20190065138
2019-02-28

Electronic device with embedded microchip

#14
20180152166
2018-05-31

Techniques for distortion reducing multi-band compressor with timbre preservation

#15
20170366151
2017-12-21

Signal processor using multiple frequency bands

#16
20160294344
2016-10-06

METHOD FOR DYNAMICALLY ADJUSTING THE SPECTRAL CONTENT OF AN AUDIO SIGNAL

#17
20160276994
2016-09-22

ACOUSTIC ADJUSTMENT DEVICE AND ACOUSTIC ADJUSTMENT METHOD

#18
20160241960
2016-08-18

Handheld electronic apparatus, sound producing system and control method of sound producing thereof

#19
20160241215
2016-08-18

Techniques for distortion reducing multi-band compressor with timbre preservation

#20
20160226462
2016-08-04

DEVICE AND METHOD FOR DYNAMIC RANGE COMPRESSION OF SOUND

#21
20160211821
2016-07-21

Digital compressor for compressing an audio signal

#22
20160088404
2016-03-24

Sound signal amplitude suppressing apparatus

#23
20150381133
2015-12-31

Audio system including multiband audio dynamics processor

#24
20150270819
2015-09-24

Techniques for distortion reducing multi-band compressor with timbre preservation

#25
20150125016
2015-05-07

Hearing aid with probabilistic hearing loss compensation

#26
20140294203
2014-10-02

Audio system including multiband audio dynamics processor

#27
20140211946
2014-07-31

Loudness modification of multichannel audio signals

#28
20130142360
2013-06-06

Method and system for controlling distortion in a critical frequency band of an audio signal

#29
20130070939
2013-03-21

Signal processing apparatus

#30
20130013096
2013-01-10

Techniques for distortion reducing multi-band compressor with timbre preservation

#31
20120278087
2012-11-01

MULTIBAND COMPRESSOR AND METHOD OF ADJUSTING THE SAME

#32
20120224721
2012-09-06

Apparatus and method of operating an audio system

#33
20120195443
2012-08-02

METHOD AND APPARATUS FOR OUTPUTTING AUDIO SIGNAL

#34
20120191462
2012-07-26

Audio signal processing device with enhancement of low-pitch register of audio signal

#35
20120180620
2012-07-19

Tone control apparatus

#36
20120170769
2012-07-05

Adjusting the loudness of an audio signal with perceived spectral balance preservation

#37
20120106743
2012-05-03

Loudness modification of multichannel audio signals

#38
20120099741
2012-04-26

Acoustic signal processing apparatus

#39
20120016505
2012-01-19

ELECTRONIC AUDIO DEVICE

#40
20110311062
2011-12-22

Loudness modification of multichannel audio signals

#41
20110255701
2011-10-20

METHOD FOR DYNAMICALLY ADJUSTING THE SPECTRAL CONTENT OF AN AUDIO SIGNAL

#42
20110158428
2011-06-30

SOUND DISTORTION SUPPRESSION CONTROL METHOD AND ACOUSTIC CONTROL APPARATUS USING THE METHOD

#43
20110110533
2011-05-12

Multiband DRC system and method for controlling the same

#44
20110085677
2011-04-14

Adaptive dynamic range enhancement of audio recordings

#45
20100322438
2010-12-23

Method and circuit for controlling an output of an audio signal of a battery-powered device

#46
20100246849
2010-09-30

Signal processing apparatus

#47
20100244966
2010-09-30

Amplifier circuit utilizing characteristic correction and smooth curvilinear correction

#48
20100202632
2010-08-12

Loudness modification of multichannel audio signals

#49
20100198378
2010-08-05

Audio processing using auditory scene analysis and spectral skewness

#50
20100150379
2010-06-17

Multiband audio dynamics processor

#51
20100067717
2010-03-18

IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF

#52
20090220108
2009-09-03

Processing of an audio signal for presentation in a high noise environment

#53
20090220096
2009-09-03

Method and device to maintain audio content level reproduction

#54
20090147962
2009-06-11

CONSUMER ELECTRONICS DEVICE WITH HEADPHONES

#55
20090097676
2009-04-16

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

#56
20090086996
2009-04-02

SYSTEM AND METHOD FOR PROCESSING AUDIO SIGNAL

#57
20080219459
2008-09-11

System and method for processing audio signal

#58
20080112576
2008-05-15

Processing of an audio signal for presentation in a high noise environment

#59
20060182287
2006-08-17

Audio monitoring system

#60
20060098827
2006-05-11

Acoustical virtual reality engine and advanced techniques for enhancing delivered sound

#61
20060034471
2006-02-16

System for and method of audio signal processing for presentation in a high-noise environment

#62
20060034470
2006-02-16

Processing of an audio signal for presentation in a high noise environment

#63
20050123153
2005-06-09

Signal compression/expansion device and mobile communication terminal

#64
15667386
2018-12-11

Automatically tuning an audio compressor to prevent distortion