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H04M1/72511
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H
ELECTRICITY
H04
Electric communication
H04M
TELEPHONIC COMMUNICATION
H04M1/00
Substation equipment
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H04M1/72511
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Patents Grants
last 30 patents
Information
Patent Grant
Method and device for adjusting frequencies of intercom apparatuses
Patent number
10,439,660
Issue date
Oct 8, 2019
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Yueyue Chu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatus for flexible bandwidth operation
Patent number
10,299,260
Issue date
May 21, 2019
QUALCOMM Incorporated
Alberto Rico Alvarino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless headset system with two different radio protocols
Patent number
9,838,062
Issue date
Dec 5, 2017
GN Netcom A/S
Leo Larsen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Microphone system and method for selecting an operating frequency f...
Patent number
9,184,858
Issue date
Nov 10, 2015
Robert Bosch GmbH
Hartwig Koch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Traffic distribution in a wireless communication system
Patent number
7,768,967
Issue date
Aug 3, 2010
Sprint Communications Company L.P.
Manish Mangal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for maintaining synchronization in low-power mode...
Patent number
7,577,180
Issue date
Aug 18, 2009
VTech Telecommunications Limited
Philip A. Boulton
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for logging on a mobile unit at a fixed station
Patent number
7,133,390
Issue date
Nov 7, 2006
Siemens Aktiengesellschaft
Jürgen Kockmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for sustaining radio frequency (RF) based communications con...
Patent number
7,082,296
Issue date
Jul 25, 2006
Northrup Grumann Corporation
M. Paul Zavidniak
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication channel selecting circuit corresponding to radio sign...
Patent number
6,920,117
Issue date
Jul 19, 2005
Oki Electric Industry Co., Ltd.
Kiyohiko Yamazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for locating a synchronization signal
Patent number
6,865,375
Issue date
Mar 8, 2005
Legerity, Inc.
Christopher L. McCrank
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Traffic distribution in a wireless communication system
Patent number
6,801,519
Issue date
Oct 5, 2004
Sprint Communications Company, L.P.
Manish Mangal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for improving voice quality in cordless communica...
Patent number
6,651,207
Issue date
Nov 18, 2003
Siemens Information & Communication Mobile, LLC
Olaf Dicker
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication system wherein insertion of an attachable exter...
Patent number
6,519,476
Issue date
Feb 11, 2003
Canon Kabushiki Kaisha
Masashi Hamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephony device having a scanning element to analyze a fr...
Patent number
6,337,982
Issue date
Jan 8, 2002
U.S. Philips Corporation
Michel Auffray
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Generic handset programming and configuration
Patent number
6,212,396
Issue date
Apr 3, 2001
Nortel Networks Limited
Paul Richard Brown
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for establishing standby periods in a base station and a han...
Patent number
6,198,926
Issue date
Mar 6, 2001
U.S. Philips Corporation
Christophe Lorieau
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method of contention resolution for a plurality of ha...
Patent number
6,128,504
Issue date
Oct 3, 2000
Lucent Technologies Inc.
Joseph L. Ciccone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile communication system including base stations each having def...
Patent number
6,122,518
Issue date
Sep 19, 2000
NEC Corporation
Koji Suda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless telephone system having a free period allocated to switchi...
Patent number
6,115,612
Issue date
Sep 5, 2000
Sony Corporation
Kunio Fukuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless or wireless system protocol for providing reliable channel...
Patent number
6,112,098
Issue date
Aug 29, 2000
International Business Machines Corporation
Eprhaim Bemis Flint
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephone arranged for operating with multiple portable un...
Patent number
6,091,758
Issue date
Jul 18, 2000
Lucent Technologies Inc.
Joseph L. Ciccone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive channel selection method for a cordless telephone
Patent number
6,070,082
Issue date
May 30, 2000
Uniden Corporation
Min Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Free channel double checking protocol and systems
Patent number
6,061,569
Issue date
May 9, 2000
U.S. Philips Corporation
Patrick Touzeau
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Clear channel selection system for a cordless telephone
Patent number
6,041,240
Issue date
Mar 21, 2000
Thomson Consumer Electronics Inc.
Dennis Ronald McCarthy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for allocating channels in plural communicatio...
Patent number
6,002,939
Issue date
Dec 14, 1999
Sony Corporation
Masato Yamagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for operating a telecommunications system, and a telecommuni...
Patent number
5,983,110
Issue date
Nov 9, 1999
Nokia Mobile Phones Limited
Mathias Kohler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for assigning a channel to a mobile unit in a...
Patent number
5,963,848
Issue date
Oct 5, 1999
Motorola, Inc.
Robert Faust D'Avello
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Protocol for exchanging signaling signals in a cordless telephone
Patent number
5,933,779
Issue date
Aug 3, 1999
U.S. Philips Corporation
Benoit Sandre
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication method, communication apparatus, and cordless telepho...
Patent number
5,930,720
Issue date
Jul 27, 1999
Uniden Corporation
Min Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephone with division of channels into groups of channels
Patent number
5,926,766
Issue date
Jul 20, 1999
Sony Corporation
Masato Yamagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHODS AND APPARATUS FOR FLEXIBLE BANDWIDTH OPERATION
Publication number
20170339677
Publication date
Nov 23, 2017
QUALCOMM Incorporated
Alberto RICO ALVARINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MICROPHONE SYSTEM AND METHOD FOR SELECTING AN OPERATING FREQUENCY F...
Publication number
20120281848
Publication date
Nov 8, 2012
ROBERT BOSCH GmbH
Hartwig Koch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wirefree intercom having low power system and process
Publication number
20070254680
Publication date
Nov 1, 2007
Shary Nassimi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system for maintaining synchronization in low-power mode...
Publication number
20050136882
Publication date
Jun 23, 2005
Philip A. Boulton
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for sustaining radio frequency (RF) based communications con...
Publication number
20030199266
Publication date
Oct 23, 2003
M. Paul Zavidniak
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cordless modem for portable computers
Publication number
20030185289
Publication date
Oct 2, 2003
Koninklijke Philips Electronics N.V.
Antonio Colmenarez
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CORDLESS TELEPHONY DEVICE
Publication number
20010044303
Publication date
Nov 22, 2001
U.S. PHILIPS CORPORATION
MICHEL AUFFRAY
H04 - ELECTRIC COMMUNICATION TECHNIQUE