with switching of direction of transmission by voice frequency

Industry

CPC
H04M9/10

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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M9/00Interconnection arrangements not involving centralised switching

Current Industry

H04M9/10with switching of direction of transmission by voice frequency

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Receive-path signal gain operations
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- Issue date Jun 14, 2022
- SORENSON IP HOLDINGS, LLC
- Mark Adams
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Echo time delay detection method, echo elimination chip, and termin...
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- Issue date Jan 21, 2020
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
- Jun Bin Liang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Echo time delay detection method, echo elimination chip, and termin...
- Patent number 10,356,249
- Issue date Jul 16, 2019
- Tencent Technology (Shenzhen) Company Limited
- Jun Bin Liang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
High quality audio conferencing with adaptive beamforming
- Patent number 8,666,047
- Issue date Mar 4, 2014
- Broadcom Corporation
- Darwin Rambo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High quality audio conferencing with adaptive beamforming
- Patent number 7,190,775
- Issue date Mar 13, 2007
- Broadcom Corporation
- Darwin Rambo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice switching system and voice switching method
- Patent number 6,816,591
- Issue date Nov 9, 2004
- Matsushita Electric Industrial Co., Ltd.
- Yasuhiro Terada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice-switching device and method for multiple receivers
- Patent number 6,535,604
- Issue date Mar 18, 2003
- Nortel Networks Limited
- Paul Provencal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice activity detection system and method
- Patent number 6,453,041
- Issue date Sep 17, 2002
- Agere Systems Guardian Corp.
- Erol Eryilmaz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive noise reduction technique for multi-point communication sy...
- Patent number 6,175,634
- Issue date Jan 16, 2001
- Intel Corporation
- David L. Graumann
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and apparatus for the automatic adjustment of a switch means...
- Patent number 6,091,937
- Issue date Jul 18, 2000
- Siemens Aktiengesellschaft
- Stefan Uhlemann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice switch used in hands-free communications system
- Patent number 5,940,499
- Issue date Aug 17, 1999
- Fujitsu Limited
- Kensaku Fujii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Two-way communication system with selective muting
- Patent number 5,940,486
- Issue date Aug 17, 1999
- Norcon Communication, Inc.
- Steven Schlaff
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice activity detection system and method
- Patent number 5,867,574
- Issue date Feb 2, 1999
- Lucent Technologies Inc.
- Erol Eryilmaz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for providing a telephone user with control of...
- Patent number 5,857,019
- Issue date Jan 5, 1999
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- David Iglehart
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Information Patent Grant
Noise-controlled communication apparatus
- Patent number 5,734,987
- Issue date Mar 31, 1998
- Mitsubishi Denki Kabushiki Kaisha
- Takashi Shiono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microphone selection process for use in a multiple microphone voice...
- Patent number 5,625,697
- Issue date Apr 29, 1997
- Lucent Technologies Inc.
- Donald J. Bowen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice actuated switching system
- Patent number 5,561,737
- Issue date Oct 1, 1996
- Lucent Technologies Inc.
- Donald J. Bowen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hands-free circuitry providing audio signal adjustment based on spe...
- Patent number 5,535,433
- Issue date Jul 9, 1996
- Kabushiki Kaisha Toshiba
- Osamu Kurokawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of improving sidetone attenuation in electroacoustic systems
- Patent number 5,467,394
- Issue date Nov 14, 1995
- Alcatel N.V.
- Michael Walker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker telephone device comprising a novel noise suppressing c...
- Patent number 5,459,786
- Issue date Oct 17, 1995
- NEC Corporation
- Yutaka Tomiyori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Auxiliary attenuator arrangement for use in voice-switched speakerp...
- Patent number 5,430,796
- Issue date Jul 4, 1995
- NEC Corporation
- Motoyoshi Komoda
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Information Patent Grant
Hands-free telephone having a handset volume attenuator for control...
- Patent number 5,212,722
- Issue date May 18, 1993
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- Yukio Murata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for automatic speech direction reversal, and circuit configu...
- Patent number 5,199,065
- Issue date Mar 30, 1993
- Siemens Aktiengesellschaft
- Andreas von Zitzewitz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hands-free telephone
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- Issue date Oct 1, 1991
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- Ikio Yoshida
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Voice direction recognition in a digital telephone station
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- Issue date Sep 10, 1991
- Siemens Aktiengesellschaft
- Wolfgang Krafft
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Information Patent Grant
Echo reduction circuit
- Patent number 4,991,166
- Issue date Feb 5, 1991
- Shure Brothers Incorporated
- Stephen D. Julstrom
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Information Patent Grant
Voice controlled attenuation adjustment in telephone transmission c...
- Patent number 4,991,167
- Issue date Feb 5, 1991
- Telenorma Telefonbau und Normalzeit GmbH
- Udo Petri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hands-free telephone
- Patent number 4,982,425
- Issue date Jan 1, 1991
- NEC Corporation
- Ikio Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Half-duplex speakerphone
- Patent number 4,879,745
- Issue date Nov 7, 1989
- IBM Corporation
- Ygal Arbel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic gain control in a loudspeaker telephone set
- Patent number 4,764,954
- Issue date Aug 16, 1988
- Kabushiki Kaisha Toshiba
- Masayuki Tsurusaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND ELECTRONIC DEVICE FOR REMOVING ECHO FLOWING IN DUE TO EX...
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- G06 - COMPUTING CALCULATING COUNTING
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RECEIVE-PATH SIGNAL GAIN OPERATIONS
- Publication number 20200099793
- Publication date Mar 26, 2020
- SORENSON IP HOLDINGS, LLC
- Mark Adams
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
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ECHO TIME DELAY DETECTION METHOD, ECHO ELIMINATION CHIP, AND TERMIN...
- Publication number 20190281162
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- TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
- Jun Bin LIANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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FAR-END CONTEXT DEPENDENT PRE-PROCESSING
- Publication number 20150327035
- Publication date Nov 12, 2015
- Intel Corporation
- Swarnendu Kar
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High Quality Audio Conferencing With Adaptive Beamforming
- Publication number 20070154001
- Publication date Jul 5, 2007
- Darwin Rambo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
High quality audio conferencing with adaptive beamforming
- Publication number 20050094795
- Publication date May 5, 2005
- Broadcom Corporation
- Darwin Rambo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Voice switching system and voice switching method
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE

with switching of direction of transmission by voice frequency

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Receive-path signal gain operations

Echo time delay detection method, echo elimination chip, and termin...

Echo time delay detection method, echo elimination chip, and termin...

High quality audio conferencing with adaptive beamforming

High quality audio conferencing with adaptive beamforming

Voice switching system and voice switching method

Voice-switching device and method for multiple receivers

Voice activity detection system and method

Adaptive noise reduction technique for multi-point communication sy...

Method and apparatus for the automatic adjustment of a switch means...

Voice switch used in hands-free communications system

Two-way communication system with selective muting

Voice activity detection system and method

Apparatus and method for providing a telephone user with control of...

Noise-controlled communication apparatus

Microphone selection process for use in a multiple microphone voice...

Voice actuated switching system

Hands-free circuitry providing audio signal adjustment based on spe...

Method of improving sidetone attenuation in electroacoustic systems

Loudspeaker telephone device comprising a novel noise suppressing c...

Auxiliary attenuator arrangement for use in voice-switched speakerp...

Hands-free telephone having a handset volume attenuator for control...

Method for automatic speech direction reversal, and circuit configu...

Hands-free telephone

Voice direction recognition in a digital telephone station

Echo reduction circuit

Voice controlled attenuation adjustment in telephone transmission c...

Hands-free telephone

Half-duplex speakerphone

Automatic gain control in a loudspeaker telephone set

Patents Applicationslast 30 patents

METHOD AND ELECTRONIC DEVICE FOR REMOVING ECHO FLOWING IN DUE TO EX...

RECEIVE-PATH SIGNAL GAIN OPERATIONS

ECHO TIME DELAY DETECTION METHOD, ECHO ELIMINATION CHIP, AND TERMIN...

FAR-END CONTEXT DEPENDENT PRE-PROCESSING

High Quality Audio Conferencing With Adaptive Beamforming

High quality audio conferencing with adaptive beamforming

Voice switching system and voice switching method