H04S3/006 - CPC Classification Index

ClassID:

232236 ⎘

H04S3/006 - CPC Classification

Classification description:

Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems

Recent Application in this class:

20250240596

2025-07-24

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

20250220373

2025-07-03

WIRELESS MULTI-CHANNEL AUDIO SYSTEM

20250031000

2025-01-23

3D SOUND ORIENTATION ADAPTABILITY

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

20230328475

2023-10-12

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

20230199426

2023-06-22

AUDIO SIGNAL OUTPUT METHOD, AUDIO SIGNAL OUTPUT DEVICE, AND AUDIO SYSTEM

20230085013

2023-03-16

MULTI-CHANNEL DECOMPOSITION AND HARMONIC SYNTHESIS

20220417688

2022-12-29

Audio mixing device and electronic device

20220295206

2022-09-15

Display device and operating method thereof

#10

20220191636

2022-06-16

AUDIO SESSION CLASSIFICATION

#11

20210120362

2021-04-22

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

#12

20210092543

2021-03-25

3D sound orientation adaptability

#13

20200374643

2020-11-26

Audio processing circuit supporting multi-channel audio input function

#14

20200342886

2020-10-29

Encoded audio metadata-based equalization

#15

20200304932

2020-09-24

Apparatus and method for realizing a SAOC downmix of 3D audio content

#16

20200084567

2020-03-12

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

#17

20190349704

2019-11-14

Determining sound locations in multi-channel audio

#18

20190320279

2019-10-17

Audio device

#19

20190297449

2019-09-26

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

#20

20190239015

2019-08-01

Scalable unified audio renderer

#21

20190124311

2019-04-25

Imaging apparatus

#22

20190066697

2019-02-28

Spatial audio apparatus

#23

20180218746

2018-08-02

Encoded audio metadata-based equalization

#24

20180206037

2018-07-19

System, control method, and control terminal

#25

20180192189

2018-07-05

Spatial audio apparatus

#26

20180063663

2018-03-01

Wireless splitter-repeater hub

#27

20170287468

2017-10-05

Method and device for processing received sound and memory medium, mobile terminal, robot having the same

#28

20170272883

2017-09-21

Apparatus and method for realizing a SAOC downmix of 3D audio content

#29

20170156015

2017-06-01

Selection of coded next generation audio data for transport

#30

20160227337

2016-08-04

System and method for capturing, encoding, distributing, and decoding immersive audio

#31

20160219389

2016-07-28

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

#32

20160142847

2016-05-19

Apparatus and method for realizing a SAOC downmix of 3D audio content

#33

20160142846

2016-05-19

Apparatus and method for enhanced spatial audio object coding

#34

20160037279

2016-02-04

Audio device

#35

20160005408

2016-01-07

Three-dimensional sound compression and over-the-air-transmission during a call

#36

20150319530

2015-11-05

Spatial audio apparatus

#37

20150317981

2015-11-05

Orientation based microphone selection apparatus

#38

20150215720

2015-07-30

At least one of intelligibility or loudness of an audio program

#39

20140376726

2014-12-25

STEREO HEADPHONE AUDIO PROCESS

#40

20140355765

2014-12-04

Multi-dimensional parametric audio system and method

#41

20140081905

2014-03-20

Method and apparatus for pruning audio based on multi-sensor analysis

#42

20140064527

2014-03-06

Apparatus and method for generating an output signal employing a decomposer

#43

20140016802

2014-01-16

Loudspeaker position compensation with 3D-audio hierarchical coding

#44

20130317830

2013-11-28

Three-dimensional sound compression and over-the-air transmission during a call

#45

20130315402

2013-11-28

THREE-DIMENSIONAL SOUND COMPRESSION AND OVER-THE-AIR TRANSMISSION DURING A CALL

#46

20120269349

2012-10-25

Method and apparatus for reproducing three-dimensional sound field

#47

20120269332

2012-10-25

Method for encoding multiple microphone signals into a source-separable audio signal for network transmission and an apparatus for directed source separation

#48