H04H20/88 - CPC Classification Index

#1

20240056207

2024-02-15

Audio broadcasting methods and devices

#2

20230370184

2023-11-16

Streaming audio synchronization system

#3

20200126572

2020-04-23

Low complexity dense transient events detection and coding

#4

20190243607

2019-08-08

Audio request interaction system

#5

20190107997

2019-04-11

Audio request interaction system

#6

20180144750

2018-05-24

Method, device and system of encoding a digital interactive response action in an analog broadcasting message

#7

20170317772

2017-11-02

Method for processing an FM stereo signal

#8

20170126341

2017-05-04

FAM TRANSMITTING APPARATUS AND METHOD FOR COMBINING FM SIGNAL AND DIGITAL MODULATED AM SIGNAL

#9

20170064480

2017-03-02

Using single-channel/multi-channel transitions to output an alert indicating a functional state of a back-up audio-broadcast system

#10

20160294494

2016-10-06

Using single-channel/multi-channel transitions to output an alert indicating a functional state of a back-up audio-broadcast system

#11

20160241350

2016-08-18

Method and apparatus for analog and digital audio blend for HD radio receivers

#12

20160211932

2016-07-21

METHOD FOR SETTING DIFFERENT TUNER AND HMI SETTINGS

#13

20150381296

2015-12-31

WIRELESS TRANSMISSION OF SOUND SIGNALS TO MULTIPLE DISCRETE SPEAKERS

#14

20150304058

2015-10-22

System and method to provide the ability to the plurality of users to broadcast their plurality of personalized contents to their preferred device and preferred language

#15

20150295667

2015-10-15

Method and apparatus for identification of broadcast source

#16

20150254757

2015-09-10

Audio request interaction system

#17

20150254060

2015-09-10

Audio request interaction system

#18

20150236806

2015-08-20

METHOD FOR SHARING AND PLAYING MULTIMEDIA CONTENT AND ELECTRONIC DEVICE IMPLEMENTING THE SAME

#19

20150063571

2015-03-05

System for the integration of signal-transmission/-reception technologies for highway use

#20

20140357184

2014-12-04

Method to geo-tag streaming music

#21

20140355764

2014-12-04

Methods and systems for blending between analog and digital broadcast signals

#22

20140348327

2014-11-27

Synchronization of multi-channel audio communicated over bluetooth low energy

#23

20140323036

2014-10-30

Systems and methods for syncronizing multiple electronic devices

#24

20140236332

2014-08-21

Digital acoustic system

#25

20140177843

2014-06-26

Method and system for reducing amplitude modulation (AM) noise in AM broadcast signals

#26

20140088977

2014-03-27

Method and apparatus for generating a stereo signal from a down-mixed mono signal

#27

20130287212

2013-10-31

Method and apparatus for multiplexing audio program channels from one or more received broadcast streams to provide a playlist style listening experience to users

#28

20130182850

2013-07-18

Circuits and methods to reduce pin count of a single channel device with a multi-channel serial interface

#29

20130179072

2013-07-11

Method to geo-tag streaming music

#30

20130170646

2013-07-04

Apparatus and method for transmitting audio object

#31

20130094652

2013-04-18

Method and device for controlling the broadcasting of audio contents by two loudspeakers

#32

20130010204

2013-01-10

Method and apparatus for identification of broadcast source

#33

20120294448

2012-11-22

Method, medium, and system encoding/decoding multi-channel signal

#34

20120288099

2012-11-15

Method, medium, and system encoding/decoding multi-channel signal

#35

20120134501

2012-05-31

Method and apparatus for encoding and decoding stereo signal and multi-channel signal

#36

20120095769

2012-04-19

Audio decoding method and audio decoder

#37

20120087502

2012-04-12

BTSC ENCODER

#38

20120082206

2012-04-05

BTSC ENCODER

#39

20110244784

2011-10-06

Method and apparatus for identification of broadcast source

#40

20110243333

2011-10-06

BTSC ENCODER

#41

20110235705

2011-09-29

BTSC ENCODER

#42

20110205429

2011-08-25

BTSC ENCODER

#43

20110196681

2011-08-11

Transmission system

#44

20110134992

2011-06-09

BTSC ENCODER

#45

20110103466

2011-05-05

BTSC TECHNIQUES

#46

20100272292

2010-10-28

Method and device for controlling the broadcasting of audio contents by two loudspeakers

#47

20090147961

2009-06-11

Object-based 3-dimensional audio service system using preset audio scenes

#48

20090110201

2009-04-30

Method, medium, and system encoding/decoding multi-channel signal

#49

20080280557

2008-11-13

Transmitting/receiving method, transmitter/receiver, and recording medium therefor

#50

20080253576

2008-10-16

Method and apparatus for encoding and decoding stereo signal and multi-channel signal

#51

20080242248

2008-10-02

Fm Receiver

#52

20080137871

2008-06-12

BTSC ENCODER

#53

20080095381

2008-04-24

BTSC ENCODER

#54

20080095380

2008-04-24

BTSC ENCODER

#55

20080095379

2008-04-24

BTSC encoder

#56

20080095378

2008-04-24

BTSC ENCODER

#57

20080095377

2008-04-24

BTSC ENCODER

#58

20080095376

2008-04-24

BTSC ENCODER

#59

20080046934

2008-02-21

Apparatus for providing over-the-air (OTA) information using text message and method thereof

#60

20080004733

2008-01-03

Audio request interaction system

#61