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CPC
H04B1/1684
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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
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H04B1/1684
of the decoded left or right stereo channel
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Patents Grants
last 30 patents
Information
Patent Grant
Active noise-cancellation feedback signal transmission
Patent number
9,812,115
Issue date
Nov 7, 2017
Texas Instruments Incorporated
Laurent Le Faucheur
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio channel control circuit
Patent number
9,686,628
Issue date
Jun 20, 2017
Hon Hai Precision Industry Co., Ltd.
Chun-Te Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Feedback microphones encoder modulators, signal generators, mixers,...
Patent number
9,384,726
Issue date
Jul 5, 2016
Texas Instruments Incorporated
Laurent Le Faucheur
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Stereo receiver for controlling continuously degree of separation
Patent number
7,486,796
Issue date
Feb 3, 2009
Alps Electric Co., Ltd.
Hiroya Ouchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio signal processing apparatus
Patent number
7,197,150
Issue date
Mar 27, 2007
Canon Kabushiki Kaisha
Taizou Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio signal processing apparatus
Patent number
6,839,442
Issue date
Jan 4, 2005
Canon Kabushiki Kaisha
Taizou Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Strategy for controlling FM stereo separation and frequency respons...
Patent number
5,671,286
Issue date
Sep 23, 1997
Ford Motor Company
Gordon Edgar Gottfried
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal mixing circuit
Patent number
4,607,381
Issue date
Aug 19, 1986
Sony Corporation
Yoshio Shimizu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stereophonic receiver having a noise reduction control circuit
Patent number
4,574,389
Issue date
Mar 4, 1986
Larry Schotz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tuning apparatus and method
Patent number
4,415,768
Issue date
Nov 15, 1983
Robert W. Carver
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distortion reducing circuit in FM receiver
Patent number
4,416,024
Issue date
Nov 15, 1983
Sanyo Electric Co., Inc.
Takenori Ugari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic noise eliminating device for an FM receiver
Patent number
4,379,207
Issue date
Apr 5, 1983
Nissan Motor Company, Ltd.
Masaki Kubota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Stereo noise reduction circuit
Patent number
4,063,039
Issue date
Dec 13, 1977
General Motors Corporation
Thomas E. Endres
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic noise reduction system of FM stereo receiver
Patent number
4,029,906
Issue date
Jun 14, 1977
Sansui Electric Co., Ltd.
Shinobu Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio processor circuit for an FM-stereo radio receiver
Patent number
3,952,161
Issue date
Apr 20, 1976
General Motors Corporation
William F. Gilbert
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3823268
Patent number
3,823,268
Issue date
Jul 9, 1974
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3803496
Patent number
3,803,496
Issue date
Apr 9, 1974
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR REDUCING NOISE INCLUDED IN A STEREO SIGNAL, STEREO SIGNA...
Publication number
20130243198
Publication date
Sep 19, 2013
SEMICONDUCTOR IDEAS TO THE MARKET (ITOM)
Herman Wouter Van Rumpt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ACTIVE NOISE-CANCELLATION FEEDBACK SIGNAL TRANSMISSION
Publication number
20120177213
Publication date
Jul 12, 2012
Laurent Le-Faucheur
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Receiver
Publication number
20050250463
Publication date
Nov 10, 2005
Tsuyoshi Koike
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Stereo receiver for controlling continuously degree of separation
Publication number
20040252843
Publication date
Dec 16, 2004
Alps Electric Co., Ltd.
Hiroya Ouchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Audio signal processing apparatus
Publication number
20040213423
Publication date
Oct 28, 2004
TAIZOU HORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Digital broadcast receiver with noise suppressing function
Publication number
20040008285
Publication date
Jan 15, 2004
PIONEER CORPORATION
Kazuhiko Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUDIO SIGNAL PROCESSING APPARATUS
Publication number
20020110251
Publication date
Aug 15, 2002
TAIZOU HORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE