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by voice-frequency signals by pilot signals
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H04B1/46
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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
H04B1/46
by voice-frequency signals by pilot signals
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Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Radio communication device
Patent number
10,164,680
Issue date
Dec 25, 2018
JVC Kenwood Corporation
Hiroshi Furuta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modular voice amplification system for protective mask
Patent number
9,560,459
Issue date
Jan 31, 2017
D. Wheatley Enterprises, Inc.
David Wheatley
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Switching between transmit and receive modes in a wireless transceiver
Patent number
9,484,979
Issue date
Nov 1, 2016
Texas Instruments Incorporated
Saurabh Khanna
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile terminal apparatus
Patent number
9,467,555
Issue date
Oct 11, 2016
Kyocera Corporation
Tomoaki Miwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for overriding a PTT switch to activate a micr...
Patent number
9,337,880
Issue date
May 10, 2016
Motorola Solutions, Inc.
Mohd Faisal Abdullah
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for automatically switching to a channel for transmission on...
Patent number
9,313,621
Issue date
Apr 12, 2016
Motorola Solutions, Inc.
Mun Yew Tham
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile terminal apparatus
Patent number
9,231,645
Issue date
Jan 5, 2016
Kyocera Corporation
Tomoaki Miwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication apparatus and condition notification method for notif...
Patent number
9,070,374
Issue date
Jun 30, 2015
JVC KENWOOD Corporation
Masaya Konishi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
System, voice cable assembly, and method for voice communication
Patent number
8,964,968
Issue date
Feb 24, 2015
BAE Systems Information and Electronic Systems Integration Inc.
Christopher O'Bara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for achieving voice-activated radio broadcasting...
Patent number
8,498,288
Issue date
Jul 30, 2013
Barclays Capital, Inc.
Saul D. Rozinsky
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for reducing power consumption in a wireless device
Patent number
8,498,678
Issue date
Jul 30, 2013
Texas Instruments Incorporated
Yossi Tsfaty
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio signal processing circuit
Patent number
8,447,251
Issue date
May 21, 2013
Sanyo Semiconductor Co., Ltd.
Toru Odajima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Portable terminal apparatus, its control method, and program
Patent number
8,385,963
Issue date
Feb 26, 2013
NEC Corporation
Toru Aoike
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiple device to one-antenna combining circuit and methods of usi...
Patent number
8,369,268
Issue date
Feb 5, 2013
Clearwire IP Holdings LLC
Walter F. Rausch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication device
Patent number
8,224,286
Issue date
Jul 17, 2012
Savox Communications Oy Ab (Ltd)
Hasse Sinivaara
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Device and method for hands-free push-to-talk functionality
Patent number
8,095,081
Issue date
Jan 10, 2012
Sony Ericsson Mobile Communications AB
Scott LaDell Vance
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
VOX circuit with 2-wire interfaces
Patent number
8,081,778
Issue date
Dec 20, 2011
SimplexGrinnell LP
Joseph D. Farley
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for detecting the presence of a transmission si...
Patent number
8,031,807
Issue date
Oct 4, 2011
Qualcomm, Incorporated
Stephen J. Shellhammer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus to provide digital signaling without internal...
Patent number
7,831,217
Issue date
Nov 9, 2010
Pine Valley Investments, Inc.
Bruno Yurman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatically calibrating frequency features of a phase locked loop
Patent number
7,719,375
Issue date
May 18, 2010
Korea Advanced Institute of Sciene and Technology
Seong-Hwan Cho
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication link termination indication signal method and apparatus
Patent number
7,684,830
Issue date
Mar 23, 2010
Endtone, LLC
Brockett Muir, III
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication apparatus and information processing termina...
Patent number
7,636,024
Issue date
Dec 22, 2009
Sharp Kabushiki Kaisha
Shinji Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Voice-operated two-way asynchronous radio
Patent number
7,158,499
Issue date
Jan 2, 2007
Mitsubishi Electric Research Laboratories, Inc.
David B. Anderson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for sleep conditioning
Patent number
7,127,074
Issue date
Oct 24, 2006
Adam Landa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Equipment lockout system
Patent number
7,079,813
Issue date
Jul 18, 2006
American Augers, Inc.
Joseph R. Szarka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system, wireless microphone, and wireless mi...
Patent number
7,054,625
Issue date
May 30, 2006
Matsushita Electric Industrial Co., Ltd.
Yuji Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless mobile station with visible RF power disable indicator
Patent number
7,003,330
Issue date
Feb 21, 2006
Samsung Electronics Co., Ltd.
Bryan Jeffery Moles
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System for coupling a mobile radio service base station to an antenna
Patent number
6,934,562
Issue date
Aug 23, 2005
BellSouth Intellectual Property Corporation
Leslie James Wilding
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reduced complexity voice activity detector
Patent number
6,876,965
Issue date
Apr 5, 2005
Telefonaktiebolaget LM Ericsson (publ)
Fisseha Mekuria
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Voice operated communications interface
Patent number
6,826,647
Issue date
Nov 30, 2004
Communications-Applied Technology Co., Inc.
Seth Leyman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
ELECTRONIC APPARATUS AND COMMUNICATION APPARATUS
Publication number
20240340527
Publication date
Oct 10, 2024
Canon Kabushiki Kaisha
KEITA NAGAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIO COMMUNICATION DEVICE
Publication number
20180294835
Publication date
Oct 11, 2018
JVC KENWOOD CORPORATION
Hiroshi FURUTA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR AUTOMATICALLY SWITCHING TO A CHANNEL FOR TRANSMISSION ON...
Publication number
20150296351
Publication date
Oct 15, 2015
MOTOROLA SOLUTIONS, INC.
MUN YEW THAM
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE TERMINAL APPARATUS
Publication number
20140248926
Publication date
Sep 4, 2014
Kyocera Corporation
Tomoaki MIWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUDIO INPUT APPARATUS, COMMUNICATION APPARATUS AND CONDITION NOTIFI...
Publication number
20130218575
Publication date
Aug 22, 2013
JVC KENWOOD CORPORATION
Masaya KONISHI
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
VOICE ACTIVATION SYSTEM AND METHOD AND COMMUNICATION SYSTEM AND MET...
Publication number
20120224709
Publication date
Sep 6, 2012
DAVID CLARK COMPANY INCORPORATED
Natan Keddem
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM, VOICE CABLE ASSEMBLY, AND METHOD FOR VOICE COMMUNICATION
Publication number
20120196640
Publication date
Aug 2, 2012
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC
Christopher O'Bara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MOBILE TERMINAL APPARATUS
Publication number
20110319128
Publication date
Dec 29, 2011
Kyocera Corporation
Tomoaki MIWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SWITCHING BETWEEN TRANSMIT AND RECEIVE MODES IN A WIRELESS TRANSCEIVER
Publication number
20110211620
Publication date
Sep 1, 2011
Saurabh Khanna
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTIPLE DEVICE TO ONE-ANTENNA COMBINING CIRCUIT AND METHODS OF USI...
Publication number
20110110277
Publication date
May 12, 2011
Walter F. Rausch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIO COMMUNICATION DEVICE
Publication number
20100151921
Publication date
Jun 17, 2010
SAVOX COMMUNICATIONS OY AB (LTD)
Hasse Sinivaara
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
AUDIO SIGNAL PROCESSING CIRCUIT
Publication number
20100081398
Publication date
Apr 1, 2010
Sanyo Electric Co., Ltd.
Toru Odajima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PORTABLE TERMINAL APPARATUS, ITS CONTROL METHOD, AND PROGRAM
Publication number
20090233561
Publication date
Sep 17, 2009
NEC Corporation
Toru Aoike
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VOX Circuit with 2-Wire Interfaces
Publication number
20090129606
Publication date
May 21, 2009
Joseph D. Farley
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS TO PROVIDE DIGITAL SIGNALING WITHOUT INTERNAL...
Publication number
20090098836
Publication date
Apr 16, 2009
Bruno Yurman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR REDUCING POWER CONSUMPTION IN A WIRELESS DEVICE
Publication number
20090017879
Publication date
Jan 15, 2009
TEXAS INSTRUMENTS INCORPORATED
Yossi Tsfaty
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR DETECTING THE PRESENCE OF A TRANSMISSION SI...
Publication number
20080112467
Publication date
May 15, 2008
QUALCOMM Incorporated
Stephen J. Shellhammer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS OF AUTOMATICALLY CALIBRATING FREQUENCY FEATURES OF A PHASE...
Publication number
20070264951
Publication date
Nov 15, 2007
Seong-Hwan Cho
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for achieving voice-activated radio broadcasting...
Publication number
20060256713
Publication date
Nov 16, 2006
Lehman Brothers Inc.
Saul D. Rozinsky
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication link termination indication signal method and apparatus
Publication number
20060211394
Publication date
Sep 21, 2006
Brockett Muir
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DEVICE AND METHOD FOR HANDS-FREE PUSH-TO-TALK FUNCTIONALITY
Publication number
20050245203
Publication date
Nov 3, 2005
Sony Ericsson Mobile Communications AB
Scott LaDell Vance
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Switching circuit
Publication number
20050233706
Publication date
Oct 20, 2005
Kabushiki Kaisha Toshiba
Toru Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless communication apparatus and information processing termina...
Publication number
20040224652
Publication date
Nov 11, 2004
Shinji Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF GENERATING AN ALERT FOR WALKIE-TALKIE WHEN OUT OF COMMUNI...
Publication number
20040214563
Publication date
Oct 28, 2004
Jany-Yee Hsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless communication system, wireless microphone, and wireless mi...
Publication number
20040106384
Publication date
Jun 3, 2004
Yuji Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Use of power detection to control RX/TX switching
Publication number
20040077316
Publication date
Apr 22, 2004
Wei Xiong
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for sleep conditioning
Publication number
20030231778
Publication date
Dec 18, 2003
Adam Landa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless mobile station with visible RF power disable indicator
Publication number
20030100352
Publication date
May 29, 2003
Bryan Jeffery Moles
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Voice-operated two-way asynchronous radio
Publication number
20030060181
Publication date
Mar 27, 2003
David B. Anderson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for selectively enabling transmit/receive modes o...
Publication number
20030003860
Publication date
Jan 2, 2003
Glen A. Dwornik
H04 - ELECTRIC COMMUNICATION TECHNIQUE