ClassID:

232257

H04S2400/07 - CPC Classification

Classification description:

Details of stereophonic systems covered by but not provided for in its groups Generation or adaptation of the Low Frequency Effect [LFE] channel, e.g. distribution or signal processing

Recent Application in this class:
#1
20250240596
2025-07-24

Systems and Methods of Adjusting Bass Levels of Multi-Channel Audio Signals

#2
20250022475
2025-01-16

AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS

#3
20240373184
2024-11-07

A METHOD OF PROCESSING AUDIO FOR PLAYBACK OF IMMERSIVE AUDIO

#4
20240305952
2024-09-12

RENDERING OF IMMERSIVE AUDIO CONTENT

#5
20240163630
2024-05-16

SYSTEMS AND METHODS FOR A PERSONALIZED AUDIO SYSTEM

#6
20240105186
2024-03-28

Audio encoding and decoding using presentation transform parameters

#7
20230413000
2023-12-21

METHOD FOR GENERATING A CONVERSION FILTER FOR CONVERTING A MULTIDIMENSIONAL OUTPUT AUDIO SIGNAL INTO A TWO-DIMENSIONAL AUDIO SIGNAL FOR LISTENING

#8
20230379632
2023-11-23

System and methods for improved acousto-haptic speakers

#9
20230328475
2023-10-12

Systems and methods of adjusting bass levels of multi-channel audio signals

#10
20230143473
2023-05-11

Splitting a voice signal into multiple point sources

#11
20230029841
2023-02-02

Perceptual bass extension with loudness management and artificial intelligence (AI)

#12
20220413658
2022-12-29

BASS MANAGEMENT FOR HOME THEATER

#13
20220038838
2022-02-03

Lower layer reproduction

#14
20220007125
2022-01-06

Acoustic system with spatial effect

#15
20210377667
2021-12-02

Systems and methods for improved acousto-haptic speakers

#16
20210295852
2021-09-23

Audio encoding and decoding using presentation transform parameters

#17
20210250718
2021-08-12

Manipulating signal flows via a controller

#18
20210250717
2021-08-12

Spatial audio Capture, Transmission and Reproduction

#19
20210235215
2021-07-29

Rendering of immersive audio content

#20
20210120362
2021-04-22

Systems and methods of adjusting bass levels of multi-channel audio signals

#21
20200275233
2020-08-27

Rendering of immersive audio content

#22
20200267486
2020-08-20

Audio signal processing method, terminal and storage medium thereof

#23
20200228908
2020-07-16

Method and apparatus for reproducing three-dimensional audio

#24
20200227052
2020-07-16

Audio encoding and decoding using presentation transform parameters

#25
20200213800
2020-07-02

Immersive audio reproduction systems

#26
20200162817
2020-05-21

Stereo virtual bass enhancement

#27
20200084567
2020-03-12

Systems and methods of adjusting bass levels of multi-channel audio signals

#28
20190320279
2019-10-17

Audio device

#29
20190289413
2019-09-19

Multichannel audio signal processing method and device

#30
20190281391
2019-09-12

Systems and methods for improved acousto-haptic speakers

#31
20190272067
2019-09-05

Bass management for home theater

#32
20190238979
2019-08-01

Virtual bass generating circuit and method

#33
20190200150
2019-06-27

Multichannel signal processing method, and multichannel signal processing apparatus for performing the method

#34
20190155483
2019-05-23

Information processing apparatus, configured to generate an audio signal corresponding to a virtual viewpoint image, information processing system, information processing method, and non-transitory computer-readable storage medium

#35
20190116445
2019-04-18

Systems and methods for providing an immersive listening experience in a limited area using a rear sound bar

#36
20190108845
2019-04-11

Encoding or decoding of audio signals

#37
20190058959
2019-02-21

Method and apparatus for reproducing three-dimensional audio

#38
20180220249
2018-08-02

Signal processing device, audio signal transfer method, and signal processing system

#39
20180139555
2018-05-17

Multichannel audio signal processing method and device

#40
20180035235
2018-02-01

Information processing apparatus configured to generate an audio signal corresponding to a virtual viewpoint image, information processing system, information processing method, and non-transitory computer-readable storage medium

#41
20180035230
2018-02-01

Multichannel signal processing method, and multichannel signal processing apparatus for performing the method

#42
20170366910
2017-12-21

Matrix decoder with constant-power pairwise panning

#43
20170352356
2017-12-07

Low-frequency effects haptic conversion system

#44
20170311077
2017-10-26

Audio signal correction and calibration for a room environment

#45
20170301330
2017-10-19

Automatic multi-channel music mix from multiple audio stems

#46
20170257720
2017-09-07

Audio processing apparatus

#47
20170150273
2017-05-25

Systems and methods for improved acousto-haptic speakers

#48
20170134873
2017-05-11

Multichannel audio signal processing method and device

#49
20170127207
2017-05-04

Sound recording method and device

#50
20170116977
2017-04-27

Vibration speaker for audio headsets

#51
20170099558
2017-04-06

Bass management for home theater speaker system and hub

#52
20170053654
2017-02-23

Low-frequency effects haptic conversion system

#53
20170048640
2017-02-16

Bass management for object-based audio

#54
20160330560
2016-11-10

Method and apparatus for reproducing three-dimensional audio

#55
20160316295
2016-10-27

Audio signal correction and calibration for a room environment

#56
20160293169
2016-10-06

Audio compression using vector field normalization

#57
20160241984
2016-08-18

METHOD AND APPARATUS FOR GENERATING DRIVE SIGNALS FOR LOUDSPEAKERS

#58
20160219389
2016-07-28

Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding

#59
20160174009
2016-06-16

Signal processor and signal processing method

#60
20160150347
2016-05-26

Bass management for audio rendering

#61
20160080882
2016-03-17

Method for playing back the sound of a digital audio signal

#62
20160044431
2016-02-11

Immersive audio rendering system

#63
20160037279
2016-02-04

Audio device

#64
20150334500
2015-11-19

Producing a multichannel sound from stereo audio signals

#65
20150215723
2015-07-30

Wireless speaker system with distributed low (bass) frequency

#66
20150215721
2015-07-30

Audio signal playback device, method, and recording medium

#67
20150189441
2015-07-02

Headphones for stereo tactile vibration, and related systems and methods

#68
20150092945
2015-04-02

Audio data processing device and audio data processing method

#69
20150049881
2015-02-19

Audio signal processing device

#70
20150036849
2015-02-05

Matrix decoder with constant-power pairwise panning

#71
20150023506
2015-01-22

Sound generator

#72
20140270263
2014-09-18

Automatic multi-channel music mix from multiple audio stems

#73
20140161281
2014-06-12

Audio signal correction and calibration for a room environment

#74
20140086414
2014-03-27

Efficient audio coding having reduced bit rate for ambient signals and decoding using same

#75
20140064494
2014-03-06

Audio spatialization and environment simulation

#76
20140044288
2014-02-13

Multi-channel audio enhancement system

#77
20140016784
2014-01-16

Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding

#78
20140010375
2014-01-09

Upmixing method and system for multichannel audio reproduction

#79
20130251156
2013-09-26

Audio signal processing device

#80
20130163785
2013-06-27

Apparatus and method for generating vibration based on sound characteristics

#81
20130064391
2013-03-14

Acoustic beam forming array using feedback-controlled microphones for tuning and self-matching of frequency response

#82
20120308042
2012-12-06

Subwoofer Volume Level Control

#83
20120263335
2012-10-18

Orientation-responsive use of acoustic reflection

#84
20120170757
2012-07-05

Immersive audio rendering system

#85
20120170756
2012-07-05

Immersive audio rendering system

#86
20120140930
2012-06-07

Method for driving loudspeakers

#87
20120114143
2012-05-10

SOUND OUTPUT APPARATUS

#88
20120051567
2012-03-01

Adapting audio signals to a change in device orientation

#89
20120014524
2012-01-19

Distributed bass

#90
20110267440
2011-11-03

Display device and method of outputting audio signal

#91
20100310092
2010-12-09

Cross-over frequency selection and optimization of response around cross-over

#92
20100246853
2010-09-30

Audio signal processing apparatus and speaker apparatus

#93
20100246831
2010-09-30

Audio spatialization and environment simulation

#94
20100220864
2010-09-02

LOW FREQUENCY MANAGEMENT FOR MULTICHANNEL SOUND REPRODUCTION SYSTEMS

#95
20100086147
2010-04-08

Harmonics generation apparatus and method thereof

#96
20090304214
2009-12-10

Systems and methods for providing surround sound using speakers and headphones

#97
20080075302
2008-03-27

MULTIPLE AUDIO CHANNEL BASS MANAGEMENT METHOD AND SYSTEM

#98
20070076894
2007-04-05

Audio control system

#99
20060093158
2006-05-04

Speaker system, audio amplifier and audio system

#100
20060062404
2006-03-23

Cross-over frequency selection and optimization of response around cross-over

#101
20060050896
2006-03-09

Method and apparatus to compensate a phase of a subwoofer channel signal

#102
20050195998
2005-09-08

Simultaneous audio playback device

#103
20050008171
2005-01-13

Audio data processing device, audio data processing method, program for the same, and recording medium with the program recorded therein

#104
16544588
2020-11-03

System, method, and device for audio reproduction

#105
15591549
2017-11-14

Extracting a common signal from multiple audio signals