ClassID:

232229

H04S1/00 - CPC Classification

Classification description:

Two-channel systems

Sub-classes:
Recent Application in this class:
#1
20260067633
2026-03-05

RETRIEVAL AUGMENTED NEURAL FIELD FOR GENERATING SPATIAL AUDIO

#2
20250358580
2025-11-20

SEPARATION AND RENDERING OF HEIGHT OBJECTS

#3
20250244946
2025-07-31

DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS

#4
20250203281
2025-06-19

CAMERA MICROPHONE DRAINAGE SYSTEM DESIGNED FOR BEAMFORMING

#5
20250103193
2025-03-27

COMPUTER DESKTOP THAT DYNAMICALLY ADAPTS TO A LIVE MULTI-CHANNEL AUDIO STREAM, SUCH AS FOR USE WITH WIRELESS TELECOMMUNICATIONS CUSTOMER SERVICE AGENTS

#6
20240357288
2024-10-24

PAIRING METHOD OF DUAL CHANNEL AND MOBILE DEVICE

#7
20240168706
2024-05-23

Dynamic range control for a wide variety of playback environments

#8
20240162874
2024-05-16

Second-Order Equalizer for High-Speed Data Lines

#9
20240086044
2024-03-14

Computer desktop that dynamically adapts to a live multi-channel audio stream, such as for use with wireless telecommunications customer service agents

#10
20230179915
2023-06-08

Camera microphone drainage system designed for beamforming

#11
20230129214
2023-04-27

Method for Bi-phasic separation and re-integration on mobile media devices

#12
20230075445
2023-03-09

Dynamic range control for a wide variety of playback environments

#13
20230035915
2023-02-02

Device to create and display free space hologram

#14
20230029390
2023-01-26

Beam generator, beam generating method, and chip

#15
20230016757
2023-01-19

Audio Data Transmission Method, System and Device

#16
20220374122
2022-11-24

Computer desktop that dynamically adapts to a live multi-channel audio stream, such as for use with wireless telecommunications customer service agents

#17
20220313371
2022-10-06

User interface mitigation techniques for modular energy systems

#18
20220303689
2022-09-22

SYSTEM AND METHOD FOR IMPROVING STEREOPHONIC SOUND

#19
20220150652
2022-05-12

Mobile terminal with at least two transducers

#20
20220103947
2022-03-31

Virtual sound image control system, ceiling member, and table

#21
20210400381
2021-12-23

Camera microphone drainage system designed for beamforming

#22
20210397311
2021-12-23

Computer desktop that dynamically adapts to a live multi-channel audio stream, such as for use with wireless telecommunications customer service agents

#23
20210358505
2021-11-18

Advanced packet-based sample audio concealment

#24
20210321177
2021-10-14

Multiplexing circuit and mobile terminal

#25
20210318848
2021-10-14

Dynamic range control for a wide variety of playback environments

#26
20210281963
2021-09-09

Audio data processing method, terminal device, and storage medium

#27
20210044897
2021-02-11

Method and apparatus for forming differential beam, method and apparatus for processing signal, and chip

#28
20200314536
2020-10-01

Apparatus for drawing attention to an object, method for drawing attention to an object, and computer readable non-transitory storage medium

#29
20200293272
2020-09-17

Dynamic range control for a wide variety of playback environments

#30
20200213702
2020-07-02

Signal processing device, signal processing method, and program

#31
20200204917
2020-06-25

Virtual sound image control system, light fixture, kitchen system, ceiling member, and table

#32
20200184947
2020-06-11

Sound output device, sound output method, and sound output system

#33
20200145772
2020-05-07

Mobile terminal with at least two transducers

#34
20200053498
2020-02-13

Information processing device, information processing method, and program

#35
20190373368
2019-12-05

Filter generation device and filter generation method

#36
20190310822
2019-10-10

Dynamic range control for a wide variety of playback environments

#37
20190149936
2019-05-16

Binaural decoder to output spatial stereo sound and a decoding method thereof

#38
20190141449
2019-05-09

Location classification for intelligent personal assistant

#39
20190141441
2019-05-09

Adaptive bass processing system

#40
20190132680
2019-05-02

Device for binaural capture of sound

#41
20190110144
2019-04-11

Method adapted to be implemented in a master device of a sound system, corresponding method adapted to be implemented in an audio rendering device of a sound system, corresponding master device, audio rendering device, system, computer readable program product and computer readable storage media

#42
20190097595
2019-03-28

Asymmetric multi-channel audio dynamic range processing

#43
20190088263
2019-03-21

Advanced packet-based sample audio concealment

#44
20190065140
2019-02-28

Dynamic range control for a wide variety of playback environments

#45
20190052962
2019-02-14

Signal processor

#46
20190023282
2019-01-24

Notification control apparatus and notification control method

#47
20190019495
2019-01-17

Sound output device, sound output method, and sound output system for sound reverberation

#48
20180359595
2018-12-13

Audio providing method and device therefor

#49
20180343535
2018-11-29

Filter generation device, filter generation method, and sound localization method

#50
20180324539
2018-11-08

Method and system of improving detection of environmental sounds in an immersive environment

#51
20180317037
2018-11-01

Reducing the phase difference between audio channels at multiple spatial positions

#52
20180206056
2018-07-19

Ear shape analysis device and ear shape analysis method

#53
20180203559
2018-07-19

Electronic device and controlling method thereof

#54
20180176709
2018-06-21

Out-of-head localization processing apparatus and filter selection method

#55
20180115847
2018-04-26

Mobile terminal with at least two transducers

#56
20180084361
2018-03-22

Audio system, audio device, and audio device setting method

#57
20180070190
2018-03-08

Binaural decoder to output spatial stereo sound and a decoding method thereof

#58
20180070177
2018-03-08

Phase control signal generation device, phase control signal generation method, and phase control signal generation program

#59
20180048976
2018-02-15

Information processing device, information processing method, and program

#60
20180048959
2018-02-15

Head-related transfer function selection device, head-related transfer function selection method, head-related transfer function selection program, and sound reproduction device

#61
20170293464
2017-10-12

Device and method for controlling an audio output for a motor vehicle

#62
20170243597
2017-08-24

Binaurally integrated cross-correlation auto-correlation mechanism

#63
20170156017
2017-06-01

Systems and methods for audio creation and delivery

#64
20170055100
2017-02-23

Endpoint mixing system and playing method thereof

#65
20170013384
2017-01-12

REMOTE CONTROL AND AUDIO A2DP FOR A SHORT DISTANCE WIRELESS COMMUNICATION DEVICE

#66
20160381484
2016-12-29

Information processing method and electronic device

#67
20160345095
2016-11-24

Systems and methods for audio creation and delivery

#68
20160322039
2016-11-03

DJ stem systems and methods

#69
20160231983
2016-08-11

Dynamic range control for a wide variety of playback environments

#70
20160227339
2016-08-04

Dynamic range control for a wide variety of playback environments

#71
20160219385
2016-07-28

Sound field measuring device, method and program

#72
20160212272
2016-07-21

Spatial audio signal processing for objects with associated audio content

#73
20160197590
2016-07-07

Dynamic range control for a wide variety of playback environments

#74
20160183026
2016-06-23

Stereophonic sound recording method and apparatus, and terminal

#75
20160142833
2016-05-19

Spatial enhancement mode for hearing aids

#76
20160134985
2016-05-12

Propagation delay correction apparatus and propagation delay correction method

#77
20160044435
2016-02-11

Audio reproducing apparatus and method

#78
20160044410
2016-02-11

Audio apparatus

#79
20160007135
2016-01-07

Audio channel control circuit

#80
20150382126
2015-12-31

Binaural decoder to output spatial stereo sound and a decoding method thereof

#81
20150326987
2015-11-12

PORTABLE BINAURAL RECORDING AND PLAYBACK ACCESSORY FOR A MULTIMEDIA DEVICE

#82
20150319550
2015-11-05

COMMUNICATION METHOD, SOUND APPARATUS AND COMMUNICATION APPARATUS

#83
20150319549
2015-11-05

SOUND FIELD ADJUSTMENT FILTER, SOUND FIELD ADJUSTMENT APPARATUS AND SOUND FIELD ADJUSTMENT METHOD

#84
20150319548
2015-11-05

Digital speaker system and electrical connection method for digital speaker system

#85
20150304788
2015-10-22

Surround component generator

#86
20150248897
2015-09-03

Driving support device

#87
20150189440
2015-07-02

Assembly and a method for determining a distance between two sound generating objects

#88
20150163614
2015-06-11

Embedding data in stereo audio using saturation parameter modulation

#89
20150146897
2015-05-28

Audio signal processing method and audio signal processing device

#90
20150092945
2015-04-02

Audio data processing device and audio data processing method

#91
20150086022
2015-03-26

Audio signal of an FM stereo radio receiver by using parametric stereo

#92
20150078555
2015-03-19

Portable electronic device with directional microphones for stereo recording

#93
20150043760
2015-02-12

Mobile terminal with at least two transducers

#94
20150043746
2015-02-12

Sound reproduction device

#95
20150023533
2015-01-22

Orientation-based audio

#96
20150023506
2015-01-22

Sound generator

#97
20150003649
2015-01-01

Headphone response measurement and equalization

#98
20150003647
2015-01-01

Audio playback method and apparatus

#99
20140363027
2014-12-11

Audio signal mixing

#100
20140348353
2014-11-27

Sound system for establishing a sound zone

#101
20140307877
2014-10-16

Information processing apparatus and sound processing method

#102
20140270302
2014-09-18

Loudspeaker arrangement with on-screen voice positioning for telepresence system

#103
20140270181
2014-09-18

DJ stem systems and methods

#104
20140247947
2014-09-04

Sound separation device and sound separation method

#105
20140119545
2014-05-01

Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral weights generator

#106
20140112479
2014-04-24

Processing method and processing apparatus for stereo audio output enhancement

#107
20140093109
2014-04-03

Channel crosstalk removal

#108
20140064493
2014-03-06

Apparatus and method of reproducing virtual sound of two channels based on listener's position

#109
20140016783
2014-01-16

Extraction of channels from multichannel signals utilizing stimulus

#110
20140010379
2014-01-09

System and method for transmitting environmental acoustical information in digital audio signals

#111
20130315401
2013-11-28

Apparatus and method for removing noise

#112
20130294637
2013-11-07

Audio output device

#113
20130282388
2013-10-24

Song transition effects for browsing

#114
20130243223
2013-09-19

Audio signal processing circuit, car audio apparatus using the same, audio component apparatus, electronic device and output audio signal generating method

#115
20130177159
2013-07-11

Interconnected speaker system

#116
20130170678
2013-07-04

Methods and systems for synthetic audio placement

#117
20130129122
2013-05-23

Orientation-based audio

#118
20130121516
2013-05-16

System and method for sound reproduction

#119
20130108055
2013-05-02

Dynamic volume control and multi-spatial processing protection

#120
20130101134
2013-04-25

System and method for wireless microphone apparent positioning

#121
20130064377
2013-03-14

Correlation parameter transmitting in an encoding apparatus and decoding apparatus

#122
20130022205
2013-01-24

Binaural decoder to output spatial stereo sound and a decoding method thereof

#123
20120328111
2012-12-27

Active delay method and a improved wireless binaural hearing device using the same method

#124
20120308056
2012-12-06

THREE-DIMENSIONAL SOUND APPARATUS

#125
20120300941
2012-11-29

APPARATUS AND METHOD FOR REMOVING VOCAL SIGNAL

#126
20120275604
2012-11-01

Processing stereophonic audio signals

#127
20120259442
2012-10-11

Reconstruction of a recorded sound field

#128
20120213375
2012-08-23

Audio spatialization and environment simulation

#129
20120207307
2012-08-16

Audio signal of an FM stereo radio receiver by using parametric stereo

#130
20120148055
2012-06-14

AUDIO PROCESSING APPARATUS, AUDIO RECEIVER AND METHOD FOR PROVIDING AUDIO THEREOF

#131
20120106742
2012-05-03

Audio content enhancement using bandwidth extension techniques

#132
20120101607
2012-04-26

Method and apparatus for playing multimedia audio-visual presentations

#133
20120077550
2012-03-29

Mobile terminal with at least two transducers

#134
20120051561
2012-03-01

Audio/sound information system and method

#135
20110311065
2011-12-22

EXTRACTION OF CHANNELS FROM MULTICHANNEL SIGNALS UTILIZING STIMULUS

#136
20110280407
2011-11-17

Compressor Based Dynamic Bass Enhancement with EQ

#137
20110235809
2011-09-29

Multi-channel audio signal processing

#138
20110152729
2011-06-23

Vibration generating apparatus and method introducing hypersonic effect to activate fundamental brain network and heighten aesthetic sensibility

#139
20110118860
2011-05-19

Sound pressure level-aware music playlists

#140
20110118859
2011-05-19

Frequency-specific determination of audio dose

#141
20110109722
2011-05-12

Apparatus for processing a media signal and method thereof

#142
20110075396
2011-03-31

SYSTEM INTEGRATED SOUND BROADCAST AND ILLUMINATION AND METHOD THEREOF

#143
20110071822
2011-03-24

Selective audio/sound aspects

#144
20110069845
2011-03-24

Selective audio/sound aspects

#145
20110069843
2011-03-24

Selective audio/sound aspects

#146
20110064230
2011-03-17

Phase layering apparatus and method for a complete audio signal

#147
20110060435
2011-03-10

AUDIO PROCESSING FOR IMPROVED USER EXPERIENCE

#148
20110058684
2011-03-10

AUDIO REPRODUCTION DEVICE

#149
20110019841
2011-01-27

Mixing control device

#150
20100158259
2010-06-24

DYNAMIC VOLUME CONTROL AND MULTI-SPATIAL PROCESSING PROTECTION

#151
20100150364
2010-06-17

Method for determining a time delay for time delay compensation

#152
20100128904
2010-05-27

Dynamic volume control and multi-spatial processing protection

#153
20100100372
2010-04-22

STEREO ENCODING DEVICE, STEREO DECODING DEVICE, AND THEIR METHOD

#154
20100054485
2010-03-04

Method and an apparatus for processing an audio signal

#155
20100034403
2010-02-11

Video and audio output system

#156
20100034394
2010-02-11

Method and an apparatus for processing an audio signal

#157
20090300242
2009-12-03

Audio Data Processor and Method for Processing Audio Data

#158
20090299735
2009-12-03

Method for Transferring an Audio Stream Between a Plurality of Terminals

#159
20090298430
2009-12-03

Directional communication systems

#160
20090276210
2009-11-05

STEREO AUDIO ENCODING APPARATUS, STEREO AUDIO DECODING APPARATUS, AND METHOD THEREOF

#161
20090262947
2009-10-22

Apparatus and method for producing 3D audio in systems with closely spaced speakers

#162
20090180624
2009-07-16

Voice processor, voice processing method, program, and information recording medium

#163
20090175472
2009-07-09

Loudspeaker device

#164
20090168605
2009-07-02

Audio generating module

#165
20090157575
2009-06-18

Device and a method to process audio data, a computer program element and computer-readable medium

#166
20090141910
2009-06-04

MULTI-MODE LED INDICATORS FOR RECORDING DEVICES

#167
20090123006
2009-05-14

Multi-mode sound reproduction system and a corresponding method thereof

#168
20090122999
2009-05-14

Method of improving acoustic properties in music reproduction apparatus and recording medium and music reproduction apparatus suitable for the method

#169
20090067636
2009-03-12

Optimization of binaural sound spatialization based on multichannel encoding

#170
20080279410
2008-11-13

Hearing enhancement systems

#171
20080279394
2008-11-13

Noise suppressing apparatus and method for noise suppression

#172
20080212033
2008-09-04

Project equipped with ultrasonic speaker, and method for displaying sound reproduction range in projector

#173
20080207123
2008-08-28

CONFIGURABLE MEANS TO PROVIDE WIRELESS MODULE CUSTOMIZATION

#174
20080192943
2008-08-14

Method and apparatus for protecting media content against unauthorized duplication

#175
20080137879
2008-06-12

Wireless audio system

#176
20080130908
2008-06-05

Selective audio/sound aspects

#177
20080118074
2008-05-22

STEREOPHONIC SOUND CONTROL APPARATUS AND STEREOPHONIC SOUND CONTROL METHOD

#178
20080084981
2008-04-10

Audio processing for improved user experience

#179
20080031473
2008-02-07

Method of providing listener with sounds in phase and apparatus thereof

#180
20080019533
2008-01-24

Audio signal processing apparatus, audio signal processing method, and program

#181
20080008325
2008-01-10

Crosstalk cancellation using load impedence measurements

#182
20070287516
2007-12-13

Directional wireless communication systems

#183
20070217617
2007-09-20

Audio decoding techniques for mid-side stereo

#184
20070213990
2007-09-13

Binaural decoder to output spatial stereo sound and a decoding method thereof

#185
20070183603
2007-08-09

Generation of customised three dimensional sound effects for individuals

#186
20070165883
2007-07-19

Stereo/monaural switching circuit and integrated circuit having the same

#187
20070154019
2007-07-05

Apparatus and method of reproducing virtual sound of two channels based on listener's position

#188
20070086597
2007-04-19

Sound measuring apparatus and method, and audio signal processing apparatus

#189
20070086553
2007-04-19

Frequency-characteristic-acquisition device, frequency-characteristic-acquisition method, and sound-signal-processing device

#190
20070081674
2007-04-12

Method and apparatus of amplifying stereo effect

#191
20070078547
2007-04-05

SOUND OUTPUT SYSTEM AND METHOD

#192
20070058822
2007-03-15

Noise reducing apparatus, method and program and sound pickup apparatus for electronic equipment

#193
20070058817
2007-03-15

Radio receiver with stereo decoder and method for use therewith

#194
20070021961
2007-01-25

Audio reproduction method and apparatus supporting audio thumbnail function

#195
20070019812
2007-01-25

Method and apparatus to reproduce wide mono sound

#196
20060183508
2006-08-17

Mobile terminal with at least two transducers

#197
20060177074
2006-08-10

Early reflection reproduction apparatus and method of sound field effect reproduction

#198
20060161964
2006-07-20

Integrated multimedia signal processing system using centralized processing of signals and other peripheral device

#199
20060159284
2006-07-20

Audio signal processing method and apparatus

#200
20060120535
2006-06-08

Method and acoustic system for generating stereo signals for each of separate sound sources

#201
20060072768
2006-04-06

Complementary-pair equalizer

#202
20060072764
2006-04-06

Audio based data representation apparatus and method

#203
20060060070
2006-03-23

Reproduction apparatus and reproduction system

#204
20060013406
2006-01-19

Method and apparatus for creating a virtual third channel in a two-channel amplifier

#205
20050286726
2005-12-29

Sound image localization apparatus

#206
20050265557
2005-12-01

Sound image localization apparatus and method and recording medium

#207
20050249363
2005-11-10

Signal processing method for audio signal compensation

#208
20050129251
2005-06-16

Method and device for selecting a sound algorithm

#209
20050117761
2005-06-02

Headphone apparatus

#210
20050105742
2005-05-19

Method and apparatus for emulating audio effect

#211
20050089179
2005-04-28

Car audio amplifier with remote control panel

#212
20050057403
2005-03-17

Local wireless audio signal RF transmitter and receiver having a single downconverter without need for IF carrier

#213
20050013446
2005-01-20

Audio system

#214
20050009583
2005-01-13

Directional wireless communication systems

#215
15593696
2017-12-12

Source independent sound field rotation for virtual and augmented reality applications

#216
14666253
2017-01-10

Customized head-related transfer functions