ClassID:

224184

H04H20/34 - CPC Classification

Classification description:

Arrangements for broadcast or for distribution combined with broadcast; Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal

Recent Application in this class:
#1
20250219750
2025-07-03

SYSTEM AND METHODS TO CAPTURE AND STREAM MULTIPLE RADIO CHANNELS

#2
20200145118
2020-05-07

Broadcast response system

#3
20190199461
2019-06-27

Broadcast response system

#4
20180351673
2018-12-06

Broadcast response system

#5
20160205159
2016-07-14

Broadcast response system

#6
20150288472
2015-10-08

Enhanced radio systems and methods

#7
20150133046
2015-05-14

Enhanced radio systems and methods

#8
20150055636
2015-02-26

Alternatives to satellite signals for synchronization in macro network

#9
20150055609
2015-02-26

Subcarrier signal for synchronization in macro network

#10
20150052026
2015-02-19

Broadcast response system

#11
20140164578
2014-06-12

Broadcast response system

#12
20120093206
2012-04-19

RADIO DATA SYSTEM MONOPHONIC DEMODULATION

#13
20110282470
2011-11-17

Using radio frequency tuning to control a portable audio device

#14
20110207443
2011-08-25

TRANSMISSION OF RADIO SIGNALS BY A PORTABLE APPARATUS

#15
20110176683
2011-07-21

Information communication using majority logic for machine control signals extracted from audible sound signals

#16
20110060669
2011-03-10

Method and apparatus for wirelessly transmitting high volume content to an electronic device

#17
20100245676
2010-09-30

Radio vision electronic network / analog output / viewing system

#18
20100178881
2010-07-15

ELECTRONIC DEVICE FOR DETECTION AND STORAGE OF RDS SIGNAL DATA

#19
20100105315
2010-04-29

Providing alternative programming on a radio in response to user input

#20
20100099371
2010-04-22

AUTOMATIC RADIO TUNING SYSTEM

#21
20090275299
2009-11-05

Frequency tracking for a FMR transmitter

#22
20090264149
2009-10-22

Cellular handheld device with FM Radio Data System receiver

#23
20090239557
2009-09-24

Common interface protocol for sending FR-RDS messages in wireless communication systems

#24
20090180641
2009-07-16

Method and apparatus for transmitting and receiving data using a phase or frequency modulated audio signal

#25
20090157406
2009-06-18

Information communication apparatus, transmission apparatus and receiving apparatus

#26
20090131003
2009-05-21

Method and system for transmitting radio data system (RDS) data

#27
20090104872
2009-04-23

BROADCAST RESPONSE SYSTEM

#28
20090104870
2009-04-23

BROADCAST RESPONSE SYSTEM

#29
20090094663
2009-04-09

PORTABLE MUSIC PLAYER AND TRANSMITTER

#30
20090093899
2009-04-09

Automatic digital music library builder

#31
20090068964
2009-03-12

System and method for transmitting RDS/RBDS data

#32
20090045951
2009-02-19

Device and methods of providing radio data system information alerts

#33
20090023406
2009-01-22

Enhanced radio systems and methods

#34
20080313697
2008-12-18

Apparatus and methods of enhancing radio programming

#35
20080298456
2008-12-04

Hybrid Digital Digital/Analog Fm Multiplexer Transmitter

#36
20080291859
2008-11-27

Fm Multiplex Broadcasting System, Fm Multiplex Broadcasting Method, and Receiver

#37
20080229356
2008-09-18

Real-time video compression

#38
20080200125
2008-08-21

Radio Broadcasting Device

#39
20080182529
2008-07-31

RDS/RBDS COMPATIBLE FM TRANSMITTER

#40
20080032647
2008-02-07

Broadcast signal interface device and method thereof

#41
20070281644
2007-12-06

Radio device

#42
20070238427
2007-10-11

Electronic device and method therefor

#43
20070220579
2007-09-20

Alternate radio data frequency selection

#44
20070211903
2007-09-13

Decimator and decimating method for multi-channel audio

#45
20070155311
2007-07-05

Broadcast response system

#46
20070127726
2007-06-07

Multiple radio signal processing and storing method and apparatus

#47
20070032217
2007-02-08

Data signal system

#48
20070015480
2007-01-18

Reduced power consumption

#49
20070010221
2007-01-11

Broadcast signal reception enhancing

#50
20060292980
2006-12-28

Remotely configurable radio audience loyalty-generating and pick-up devices and broaucast network system

#51
20060193477
2006-08-31

System for audio signal processing with sound spectrum selection

#52
20060156367
2006-07-13

System for answering inquiries

#53
20060153390
2006-07-13

Acoustic signal transmission method and apparatus with insertion signal

#54
20060078077
2006-04-13

Method and system for undersampled symbol synchronization

#55
20060062363
2006-03-23

Providing alternative programming on a radio in response to user input

#56
20060053446
2006-03-09

Cable program receiver and method of processing service information for the same

#57
20060036514
2006-02-16

Dynamic selection and scheduling of radio frequency communications

#58
20060030378
2006-02-09

Two channel communication system using RDS datastream broadcasting

#59
20060020467
2006-01-26

Acoustic signal transmission method and acoustic signal transmission apparatus

#60
20060019642
2006-01-26

Dynamic creation, selection, and scheduling of radio frequency communications

#61
20060003694
2006-01-05

Method and apparatus for transmission and receipt of digital data in an analog signal

#62
20050287972
2005-12-29

Broadcast response system

#63
20050287971
2005-12-29

Broadcast response system

#64
20050266814
2005-12-01

Dynamic data delivery apparatus and method for same

#65
20050255852
2005-11-17

Dynamic data delivery apparatus and method for same

#66
20050255804
2005-11-17

Dynamic data delivery apparatus and method for same

#67
20050202781
2005-09-15

Dynamic data delivery apparatus and method for same

#68
20050185745
2005-08-25

Method and system for undersampled symbol synchronization

#69
20050180538
2005-08-18

Method and system for undersampled symbol synchronization

#70
20050154599
2005-07-14

User terminal, media system and method of delivering objects relating to broadcast media stream to user terminal

#71
20050148325
2005-07-07

Method of providing service for user equipment and system

#72
20050148296
2005-07-07

Media system, user terminal and method of providing content items relating to broadcast media stream

#73
20050100116
2005-05-12

Reduced power consumption

#74
20050037721
2005-02-17

Receiver system for decoding data embedded in an electromagnetic signal

#75
20050020223
2005-01-27

Concurrent content capturing radio systems and methods