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H
ELECTRICITY
H03
Electronic circuits
H03G
CONTROL OF AMPLIFICATION
H03G7/00
Volume compression or expansion in amplifiers
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Patents Grants
last 30 patents
Information
Patent Grant
Audio dynamics processing control system with integration release w...
Patent number
11,641,183
Issue date
May 2, 2023
EAR PHYSICS, LLC
James Kinney Waller
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Volume adjustment device and volume adjustment method
Patent number
11,418,870
Issue date
Aug 16, 2022
Yamaha Corporation
Yusuke Ono
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Logarithmic amplifier
Patent number
11,321,543
Issue date
May 3, 2022
Texas Instruments Incorporated
Vadim Valerievich Ivanov
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for inducing brainwaves by sound and sound adjusting device
Patent number
11,309,858
Issue date
Apr 19, 2022
PixArt Imaging Inc.
Kuan-Li Chao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic and self-adjusting microphone gain for voice-enabled devices
Patent number
11,165,401
Issue date
Nov 2, 2021
HOURGLASS SOFTWARE LLC
Faisal Qureshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Analog switch circuit, volume circuit, and semiconductor integrated...
Patent number
11,146,226
Issue date
Oct 12, 2021
Rohm Co., Ltd.
Mitsuteru Sakai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electronic device and control method thereof
Patent number
11,076,249
Issue date
Jul 27, 2021
Samsung Electronics Co., Ltd.
Hyeungrae Cho
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Logarithmic amplifier
Patent number
10,956,687
Issue date
Mar 23, 2021
Texas Instruments Incorporated
Vadim Valerievich Ivanov
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Intelligent power reduction in audio amplifiers
Patent number
10,924,079
Issue date
Feb 16, 2021
Roku, Inc.
Neil Edward Johnson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Variable gain amplifiers for communication systems
Patent number
10,763,810
Issue date
Sep 1, 2020
Inphi Corporation
Simon Forey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated switch and self-activating adjustable power limiter
Patent number
10,680,590
Issue date
Jun 9, 2020
pSemi Corporation
Jianhua Lu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Audio device and control method for an audio device
Patent number
10,637,426
Issue date
Apr 28, 2020
Yamaha Corporation
Ryoji Tanji
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Variable gain amplifiers for communication systems
Patent number
10,622,955
Issue date
Apr 14, 2020
Inphi Corporation
Simon Forey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Intelligent power reduction in audio amplifiers
Patent number
10,498,306
Issue date
Dec 3, 2019
Roku, Inc.
Neil Edward Johnson
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Automatic gain compression detection and gain control for analog fr...
Patent number
10,411,924
Issue date
Sep 10, 2019
Maxlinear Asia Singapore PTE LTD
Nanyan Wang
G05 - CONTROLLING REGULATING
Information
Patent Grant
Hybrid variable gain amplifier
Patent number
10,367,466
Issue date
Jul 30, 2019
Huawei Technologies Co., Ltd.
Kimia Taghizadeh Ansari
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated switch and self-activating adjustable power limiter
Patent number
10,277,211
Issue date
Apr 30, 2019
pSemi Corporation
Jianhua Lu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Variable gain amplifiers for communication systems
Patent number
10,270,409
Issue date
Apr 23, 2019
Inphi Corporation
Simon Forey
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Self-activating adjustable power limiter
Patent number
10,224,913
Issue date
Mar 5, 2019
pSemi Corporation
Jianhua Lu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Audio apparatus, and current control method
Patent number
9,930,450
Issue date
Mar 27, 2018
Alpine Electronics, Inc.
Minoru Matsuyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System and method for high input capacitive signal amplifier
Patent number
9,722,563
Issue date
Aug 1, 2017
Infineon Technologies AG
Michael Kropfitsch
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Integrated switch and self-activating adjustable power limiter
Patent number
9,537,472
Issue date
Jan 3, 2017
Peregrine Semiconductor Corporation
Jianhua Lu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Capacitance discharge limiter
Patent number
9,490,647
Issue date
Nov 8, 2016
Peregrine Semiconductor Corporation
Hojung Ju
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for controlling an amplification gain of an am...
Patent number
9,425,757
Issue date
Aug 23, 2016
Infineon Technologies AG
Dietmar Straeussnigg
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System and method for high input capacitive signal amplifier
Patent number
9,413,317
Issue date
Aug 9, 2016
Infineon Technologies AG
Michael Kropfitsch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Self-activating adjustable power limiter
Patent number
8,928,388
Issue date
Jan 6, 2015
Peregrine Semiconductor Corporation
Jianhua Lu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System and method for high input capacitive signal amplifier
Patent number
8,638,249
Issue date
Jan 28, 2014
Infineon Technologies AG
Michael Kropfitsch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic gain control
Patent number
8,587,376
Issue date
Nov 19, 2013
NXP, B.V.
Friedrich Reining
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Feedback limiter with adaptive time control
Patent number
8,494,182
Issue date
Jul 23, 2013
Harman Becker Automotive Systems GmbH
Georg Spielbauer
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of limiting the maximum permitted sound volume in an earphon...
Patent number
8,223,994
Issue date
Jul 17, 2012
3M Svenska Aktiebolag
Roger Kihlberg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND CIRCUIT FOR MEASURING A CURRENT
Publication number
20250239979
Publication date
Jul 24, 2025
STMicroelectronics International N.V.
Nicolas Aupetit
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DYNAMIC AND SELF-ADJUSTING MICROPHONE GAIN FOR VOICE-ENABLED DEVICES
Publication number
20210305960
Publication date
Sep 30, 2021
Hourglass Software LLC
Faisal Qureshi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
ADJUSTING A VOLUME LEVEL
Publication number
20210279032
Publication date
Sep 9, 2021
Nokia Technologies Oy
Jussi Artturi LEPPÄNEN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Volume Adjustment Device and Volume Adjustment Method
Publication number
20210250681
Publication date
Aug 12, 2021
Yamaha Corporation
Yusuke ONO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD FOR INDUCING BRAINWAVES BY SOUND AND SOUND ADJUSTING DEVICE
Publication number
20210218380
Publication date
Jul 15, 2021
PIXART IMAGING INC.
Kuan-Li CHAO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
LOGARITHMIC AMPLIFIER
Publication number
20210182507
Publication date
Jun 17, 2021
TEXAS INSTRUMENTS INCORPORATED
Vadim Valerievich IVANOV
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ANALOG SWITCH CIRCUIT, VOLUME CIRCUIT, AND SEMICONDUCTOR INTEGRATED...
Publication number
20200412317
Publication date
Dec 31, 2020
Rohm Co., Ltd.
Mitsuteru Sakai
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Intelligent Power Reduction in Audio Amplifiers
Publication number
20200220512
Publication date
Jul 9, 2020
ROKU, INC.
Neil Edward JOHNSON
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
VARIABLE GAIN AMPLIFIERS FOR COMMUNICATION SYSTEMS
Publication number
20200204131
Publication date
Jun 25, 2020
INPHI CORPORATION
Simon FOREY
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Audio Dynamics Processing Control System with Integration Release W...
Publication number
20200177147
Publication date
Jun 4, 2020
James Kinney Waller
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ELECTRONIC DEVICE AND CONTROL METHOD THEREOF
Publication number
20200145770
Publication date
May 7, 2020
Samsung Electonics Co., LTD.
Hyeungrae Cho
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Integrated Switch and Self-Activating Adjustable Power Limiter
Publication number
20190296722
Publication date
Sep 26, 2019
pSemi Corporation
Jianhua Lu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
VARIABLE GAIN AMPLIFIERS FOR COMMUNICATION SYSTEMS
Publication number
20190207576
Publication date
Jul 4, 2019
INPHI CORPORATION
Simon FOREY
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
HYBRID VARIABLE GAIN AMPLIFIER
Publication number
20190140609
Publication date
May 9, 2019
Kimia Taghizadeh Ansari
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUDIO PROCESSING UNIT
Publication number
20180367228
Publication date
Dec 20, 2018
AfterMaster, Inc.
Lawrence G. Ryckman
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
AUDIO DEVICE AND CONTROL METHOD FOR AN AUDIO DEVICE
Publication number
20180358946
Publication date
Dec 13, 2018
Yamaha Corporation
Ryoji TANJI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Apparatus and Method for Controlling an Amplification Gain of an Am...
Publication number
20140341397
Publication date
Nov 20, 2014
Dietmar Straeussnigg
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Self-Activating Adjustable Power Limiter
Publication number
20140266383
Publication date
Sep 18, 2014
PEREGRINE SEMICONDUCTOR CORPORATION
Jianhua Lu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
System and Method for High Input Capacitive Signal Amplifier
Publication number
20140140538
Publication date
May 22, 2014
INFINEON TECHNOLOGIES AG
Michael Kropfitsch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method for High Input Capacitive Signal Amplifier
Publication number
20130271307
Publication date
Oct 17, 2013
INFINEON TECHNOLOGIES AG
Michael Kropfitsch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MIXED SIGNAL DYNAMIC RANGE COMPRESSION
Publication number
20120262233
Publication date
Oct 18, 2012
Fairchild Semiconductor Corporation
Maurice B. Richard
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUTOMATIC GAIN CONTROL
Publication number
20120025908
Publication date
Feb 2, 2012
NXP B.V.
Friedrich Reining
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Amplifier
Publication number
20100127778
Publication date
May 27, 2010
Yamaha Corporation
Masayuki Iwamatsu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
VARIABLE GAIN AMPLIFIER HAVING LINEAR-IN-dB GAIN CHARACTERISTIC
Publication number
20090302946
Publication date
Dec 10, 2009
FCI INC.
Sung Ho Beck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
LINEAR-IN-DB VARIABLE GAIN AMPLIFIER
Publication number
20090256635
Publication date
Oct 15, 2009
MEDIATEK SINGAPORE PTE LTD
Yan Tong
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD OF LIMITING THE MAXIMUM PERMITTED SOUND VOLUME IN AN EARPHON...
Publication number
20090252349
Publication date
Oct 8, 2009
PELTOR AB
Roger Kihlberg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
GAIN CONTROL METHOD AND APPARATUS
Publication number
20090190699
Publication date
Jul 30, 2009
InterDigital Technology Corporation
Leonid Kazakevich
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
GAIN CONTROL CIRCUIT
Publication number
20090140808
Publication date
Jun 4, 2009
Hong Kong Applied Science and Technology Research Institute Company Limited
Chit Ah MAK
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
VARIABLE GAIN AMPLIFIER HAVING WIDE GAIN VARIATION AND WIDE BANDWIDTH
Publication number
20090072905
Publication date
Mar 19, 2009
Samsung Electro-Mechanics Co., Ltd.
Hoang Duong Quoc
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
FEEDBACK LIMITER WITH ADAPTIVE TIME CONTROL
Publication number
20090009251
Publication date
Jan 8, 2009
Georg Spielbauer
H03 - BASIC ELECTRONIC CIRCUITRY