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H
ELECTRICITY
H03
Electronic circuits
H03G
CONTROL OF AMPLIFICATION
H03G5/00
Tone control or bandwidth control in amplifiers
Current Industry
H03G5/04
in untuned amplifiers
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Patents Grants
last 30 patents
Information
Patent Grant
Device and method for reproducing an audio signal
Patent number
9,780,739
Issue date
Oct 3, 2017
Harman Becker Automotive Systems GmbH
Tobias Muench
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Sound processing apparatus, method, and program
Patent number
9,294,062
Issue date
Mar 22, 2016
Sony Corporation
Mitsuyuki Hatanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for adding harmonics to sound signal
Patent number
9,281,791
Issue date
Mar 8, 2016
Yamaha Corporation
Takehiko Kawahara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Systems and methods for transducer calibration and tuning
Patent number
8,682,002
Issue date
Mar 25, 2014
Conexant Systems, Inc.
James Walter Wihardja
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Synthesized audio parameters
Patent number
8,473,083
Issue date
Jun 25, 2013
Aaron T. Emigh
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system for enhancing bass effect in audio signals
Patent number
8,331,570
Issue date
Dec 11, 2012
STMicroelectronics Asia Pacific PTE Ltd.
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for enhancing bass effect in audio signals
Patent number
8,284,956
Issue date
Oct 9, 2012
STMicroelectronics Asia Pacific PTE Ltd.
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit for processing sound signals
Patent number
8,165,322
Issue date
Apr 24, 2012
Gebrüder Frei GmbH & Co. KG
Dirk T. Jambor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and system for enhancing bass effect in audio signals
Patent number
7,961,888
Issue date
Jun 14, 2011
STMicroelectronics Asia Pacific PTE Ltd.
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High speed amplifier incorporating pre-emphasis
Patent number
7,271,659
Issue date
Sep 18, 2007
Alexander Roger Deas
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Hand-held, ergonomic capacitive amplifier and hand-held tone genera...
Patent number
7,026,803
Issue date
Apr 11, 2006
Michael Kurth
G01 - MEASURING TESTING
Information
Patent Grant
Preamplifier with an adjustable bandwidth
Patent number
6,175,275
Issue date
Jan 16, 2001
STMicroelectronics S.A.
Michel Barou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for correcting frequency characteristic of sound field
Patent number
5,541,866
Issue date
Jul 30, 1996
Kabushiki Kaisha Kenwood
Makoto Sato
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bass clipping circuit
Patent number
5,509,080
Issue date
Apr 16, 1996
Peavey Electronics Corporation
John H. Roberts
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and a method for dynamically tuning a particle sensor in...
Patent number
5,424,558
Issue date
Jun 13, 1995
High Yield Technology, Inc.
Peter G. Borden
G01 - MEASURING TESTING
Information
Patent Grant
Loudness control circuit
Patent number
5,325,440
Issue date
Jun 28, 1994
Sanyo Electric Co., Ltd.
Masanori Fujisawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bass compensation circuit for use in sound reproduction device
Patent number
5,305,388
Issue date
Apr 19, 1994
Matsushita Electric Industrial Co., Ltd.
Fumiyasu Konno
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker system installed on an automobile door and including a...
Patent number
5,297,212
Issue date
Mar 22, 1994
Pioneer Electronic Corporation
Fumio Murayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tone control apparatus for front and rear channels
Patent number
5,241,605
Issue date
Aug 31, 1993
Pioneer Electronic Corporation
Shuichi Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Filter with adjustable edge steepness
Patent number
5,229,734
Issue date
Jul 20, 1993
Siemens Aktiengesellschaft
Jurgen Wondra
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit arrangement with electronically controllable transfer chara...
Patent number
5,206,603
Issue date
Apr 27, 1993
U.S. Philips Corporation
Ernst-August Kilian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Loudness control circuit for an audio device
Patent number
5,172,358
Issue date
Dec 15, 1992
Yamaha Corporation
Shigenobu Kimura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Amplifier circuitry with mode compensation and selectable gain and...
Patent number
5,131,044
Issue date
Jul 14, 1992
Peavey Electronics Corporation
James W. Brown
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Electronic audio signal amplifier and loudspeaker system
Patent number
5,129,006
Issue date
Jul 7, 1992
Amel L. Hill
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Monolithic semiconductor integrated circuit device having current a...
Patent number
5,053,650
Issue date
Oct 1, 1991
Hitachi, Ltd.
Yuichi Ohkubo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Varying loudspeaker spatial characteristics in a vehicle
Patent number
5,046,106
Issue date
Sep 3, 1991
Bose Corporation
Craig Liebel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sound field correction system
Patent number
4,980,914
Issue date
Dec 25, 1990
Pioneer Electronic Corporation
Yoshiro Kunugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sound field correction system
Patent number
4,868,878
Issue date
Sep 19, 1989
Pioneer Electronic Corporation
Yoshiro Kunugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker reproduction apparatus in vehicle
Patent number
4,845,775
Issue date
Jul 4, 1989
Pioneer Electronic Corporation
Akira Kanagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Variable preemphasis/deemphasis network
Patent number
4,760,602
Issue date
Jul 26, 1988
RCA Licensing Corporation
John J. Gibson
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
VEHICLE HORN DEVICE AND METHOD
Publication number
20170361770
Publication date
Dec 21, 2017
Robert Larsen
B60 - VEHICLES IN GENERAL
Information
Patent Application
SOUND PROCESSING APPARATUS, METHOD, AND PROGRAM
Publication number
20140205111
Publication date
Jul 24, 2014
SONY CORPORATION
Mitsuyuki Hatanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS WITH AN AUDIO EQUALIZER AND ASSOCIATED METHOD
Publication number
20140173519
Publication date
Jun 19, 2014
NOKIA CORPORATION
Antti Heikki Tapio Sassi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Device For Adding Harmonics To Sound Signal
Publication number
20130308793
Publication date
Nov 21, 2013
Yamaha Corporation
Takehiko KAWAHARA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUDIO CONTROL DEVICE USING MULTI-SCREEN AND CONTROL METHOD THEREOF
Publication number
20130305155
Publication date
Nov 14, 2013
Keejung Yoon
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DEVICE AND METHOD FOR REPRODUCING AN AUDIO SIGNAL
Publication number
20130094665
Publication date
Apr 18, 2013
Harman Becker Automotive Systems GmbH
Tobias Muench
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD AND SYSTEM FOR ENHANCING BASS EFFECT IN AUDIO SIGNALS
Publication number
20110176696
Publication date
Jul 21, 2011
STMicroelectronics Asia Pacific Pte. Ltd.
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for sound enhancer
Publication number
20110019828
Publication date
Jan 27, 2011
Terry Hung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR TRANSDUCER CALIBRATION AND TUNING
Publication number
20110002471
Publication date
Jan 6, 2011
Conexant Systems, Inc.
JAMES WALTER WIHARDJA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR ENHANCING BASS EFFECT IN AUDIO SIGNALS
Publication number
20100208899
Publication date
Aug 19, 2010
STMicroelectronics Asia Pacific Pte. Ltd.
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Circuit for processing sound signals
Publication number
20080310654
Publication date
Dec 18, 2008
Gebruder Frei GmbH & Co. KG.
DIRK T. JAMBOR
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUDIO PROCESSING APPARATUS SUITABLE FOR SINGING PRACTICE
Publication number
20080075292
Publication date
Mar 27, 2008
HON HAI Precision Industry CO., LTD.
Shih-Fang Wong
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUDIO PROCESSING SYSTEM AND METHOD
Publication number
20080069377
Publication date
Mar 20, 2008
HON HAI Precision Industry CO., LTD.
Shih-Fang Wong
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and system for enhancing bass effect in audio signals
Publication number
20060147046
Publication date
Jul 6, 2006
STMicroelectronics Asia Pacific Pte. Ltd. (SG)
Sudhir K. Kasargod
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Equalizer parameter control interface and method for parametric equ...
Publication number
20050190930
Publication date
Sep 1, 2005
Robert J. Desiderio
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High speed amplifier incorporating pre-emphasis
Publication number
20050088238
Publication date
Apr 28, 2005
Acuid Corporation (Guernsey) Limited
Alexander R. Deas
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Graphic audio equalizer with parametric equalizer function
Publication number
20040146170
Publication date
Jul 29, 2004
Thomas Zint
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Hand-held, ergonomic capacitive amplifier and hand-held tone genera...
Publication number
20040135570
Publication date
Jul 15, 2004
Michael Kurth
H03 - BASIC ELECTRONIC CIRCUITRY