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using companding of the stereo difference signal
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CPC
H04B1/1692
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Parent Industries
H
ELECTRICITY
H04
Electric communication
H04B
TRANSMISSION
H04B1/00
Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00 Details of transmission systems not characterised by the medium used for transmission
Current Industry
H04B1/1692
using companding of the stereo difference signal
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Patents Grants
last 30 patents
Information
Patent Grant
Method for noise reduction of a FM signal
Patent number
7,362,872
Issue date
Apr 22, 2008
Sony Deutschland GmbH
Jens Wildhagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM composite signal processor
Patent number
5,913,152
Issue date
Jun 15, 1999
Solid Electronics Labs
Stephen J. Hemphill
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal distinction circuit
Patent number
4,982,431
Issue date
Jan 1, 1991
Sanyo Electric Co., Ltd.
Masaya Tanno
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fm stereo demodulator
Patent number
4,972,482
Issue date
Nov 20, 1990
Sanyo Electric Co., Ltd.
Kazuhisa Ishiguro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM/FMX stereophonic receiver
Patent number
4,916,741
Issue date
Apr 10, 1990
Sanyo Electric Co., Ltd.
Tsutomu Ishikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal distinction circuit
Patent number
4,914,680
Issue date
Apr 3, 1990
Sanyo Electric Co., Ltd.
Masaya Tanno
G01 - MEASURING TESTING
Information
Patent Grant
FMX stereophonic broadcast receiver
Patent number
4,864,637
Issue date
Sep 5, 1989
Sanyo Electric Co, Ltd.
Tsutomu Ishikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FMX stereophonic receiver
Patent number
4,852,167
Issue date
Jul 25, 1989
Sanyo Electric Co., Ltd.
Noboru Usui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Selective decoder for compatible FM stereophonic system utilizing c...
Patent number
4,817,151
Issue date
Mar 28, 1989
Broadcast Technology Partners
Murray L. Bod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM/FMX stereophonic receiver
Patent number
4,809,328
Issue date
Feb 28, 1989
Sanyo Electric Co., Ltd.
Noboru Usui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM stereophonic broadcasting system utilizing simultaneous compandi...
Patent number
4,771,464
Issue date
Sep 13, 1988
Broadcast Technology Partners
Jeffrey B. Kadin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiver for compatible FM stereophonic system utilizing companding...
Patent number
4,769,841
Issue date
Sep 6, 1988
Broadcast Technology Partners
Aldo G. Cugnini
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiver for FM stereophonic broadcasting system utilizing circuits...
Patent number
4,751,734
Issue date
Jun 14, 1988
Broadcast Technology Partners
Thomas E. Rucktenwald
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive expanders for FM stereophonic broadcasting system utilizin...
Patent number
4,602,381
Issue date
Jul 22, 1986
CBS Inc.
Aldo G. Cugnini
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Compatible transmission techniques for FM stereophonic radio and te...
Patent number
4,602,380
Issue date
Jul 22, 1986
CBS Inc.
David W. Stebbings
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Digital stereo multiplexing-demultiplexing system based on linear p...
Publication number
20200177220
Publication date
Jun 4, 2020
Djuro George Zrilic
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Circuit for processing audio signals
Publication number
20050163321
Publication date
Jul 28, 2005
SANYO ELECTRIC CO., LTD.
Takeyoshi Meguro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Linear phase compander for FM broadcast
Publication number
20030045312
Publication date
Mar 6, 2003
Jens Wildhagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for noise reduction of a FM signal
Publication number
20030039371
Publication date
Feb 27, 2003
Jens Wildhagen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FM composite signal processor
Publication number
20020094793
Publication date
Jul 18, 2002
Stephen J. Hemphill
H04 - ELECTRIC COMMUNICATION TECHNIQUE