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H04M9/025
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H
ELECTRICITY
H04
Electric communication
H04M
TELEPHONIC COMMUNICATION
H04M9/00
Interconnection arrangements not involving centralised switching
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H04M9/025
Time division multiplex systems
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Patents Grants
last 30 patents
Information
Patent Grant
TDD time slot splitting
Patent number
11,405,508
Issue date
Aug 2, 2022
Telefonaktiebolaget LM Ericsson (publ)
David Astely
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
TDD time slot splitting
Patent number
9,699,322
Issue date
Jul 4, 2017
Telefonaktiebolaget LM Ericsson (publ)
David Astely
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subframes in a cellular communications system
Patent number
RE45653
Issue date
Aug 11, 2015
Telefonaktiebolaget L M Ericsson (Publ)
David Astely
001 -
Information
Patent Grant
TDD time slot splitting
Patent number
8,767,697
Issue date
Jul 1, 2014
Telefonaktiebolaget L M Ericsson (Publ)
David Astely
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
8,559,422
Issue date
Oct 15, 2013
MOSAID Technologies Incorporated
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
8,223,800
Issue date
Jul 17, 2012
Mosaid Technologies Incorporated
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
8,000,349
Issue date
Aug 16, 2011
MOSAID Technologies Incorporated
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subframes in a cellular communications system
Patent number
7,986,681
Issue date
Jul 26, 2011
Telefonaktiebolaget L M Ericsson (Publ)
David Astely
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,593,394
Issue date
Sep 22, 2009
MOSAID Technologies Incorporated
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,466,722
Issue date
Dec 16, 2008
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,397,791
Issue date
Jul 8, 2008
Serconet, Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for delivering secured telephony service in a...
Patent number
7,324,631
Issue date
Jan 29, 2008
MediaOne Group, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,274,688
Issue date
Sep 25, 2007
SerCoNet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,197,028
Issue date
Mar 27, 2007
SerCoNet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone communication system over a single telephone line
Patent number
7,106,721
Issue date
Sep 12, 2006
Serconet, Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Intercom system having unified control and audio data transport
Patent number
7,103,062
Issue date
Sep 5, 2006
Clear Com
Timothy Lee Erickson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for delivering secured telephony service in a...
Patent number
7,010,803
Issue date
Mar 7, 2006
MediaOne Group, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for delivering secured telephony service in a...
Patent number
6,862,349
Issue date
Mar 1, 2005
MediaOne Group, Inc.
Gregory Joseph Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit for attenuation of echos caused by line variations and an i...
Patent number
6,408,008
Issue date
Jun 18, 2002
Creative Integrated Systems, Inc.
James A. Komarek
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiple application switching platform and method
Patent number
6,381,239
Issue date
Apr 30, 2002
Taqua Systems, Inc.
Roger F. Atkinson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Private digital communication apparatus for interconnecting a plura...
Patent number
6,275,474
Issue date
Aug 14, 2001
Alcatel
Franco Perin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Intercom system having unified control and audio data transport
Patent number
6,181,707
Issue date
Jan 30, 2001
Clear Com
Timothy Lee Erickson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method to ensure the confidentiality of a vocal link and telecommun...
Patent number
5,742,771
Issue date
Apr 21, 1998
Thomson-CSF
Philippe Fontaine
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ring communication system using ISDN
Patent number
5,680,589
Issue date
Oct 21, 1997
Edwin E. Klingman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for spurious signal detection and disconnectio...
Patent number
5,615,246
Issue date
Mar 25, 1997
US WEST Technologies, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for delivering secured telephony service in a...
Patent number
5,559,858
Issue date
Sep 24, 1996
U S West Advanced Technologies, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Point-to-multipoint communication system and method
Patent number
5,553,135
Issue date
Sep 3, 1996
Xie-Hao Xing
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Home and small business phone system for operation on a single inte...
Patent number
5,548,592
Issue date
Aug 20, 1996
Creative Integrated Systems, Inc.
James A. Komarek
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for multiple access in a digital communication system
Patent number
5,544,158
Issue date
Aug 6, 1996
Mitel Corporation
Dan Oprea
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for delivering secured telephone service in hy...
Patent number
5,469,495
Issue date
Nov 21, 1995
U S West Advanced Technologies, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
TDD TIME SLOT SPLITTING
Publication number
20220337705
Publication date
Oct 20, 2022
Telefonaktiebolaget LM Ericsson (publ)
David ASTELY
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TDD TIME SLOT SPLITTING
Publication number
20170279969
Publication date
Sep 28, 2017
Telefonaktiebolaget LM Ericsson (publ)
David ASTELY
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DYNAMIC NETWORK ROUTING DECISION PROCESSES AND SYSTEMS
Publication number
20150079999
Publication date
Mar 19, 2015
Highbeam Inc.
M. Erol TOKER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TELEPHONE COMMUNICATION SYSTEM OVER A SINGLE TELEPHONE LINE
Publication number
20120307990
Publication date
Dec 6, 2012
MOSAID TECHNOLOGIES INCORPORATED
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TDD Time Slot Splitting
Publication number
20110274015
Publication date
Nov 10, 2011
TELEFONAKTIEBOLAGET L M ERICSSON (publ)
David ASTELY
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Subframes in a cellular communications system
Publication number
20090073902
Publication date
Mar 19, 2009
David Astely
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone communication system over a single telephone line
Publication number
20080232579
Publication date
Sep 25, 2008
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TELEPHONE COMMUNICATION SYSTEM OVER A SINGLE TELEPHONE LINE
Publication number
20080043646
Publication date
Feb 21, 2008
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TELEPHONE COMMUNICATION SYSTEM OVER A SINGLE TELEPHONE LINE
Publication number
20080013529
Publication date
Jan 17, 2008
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone communication system over a single telephone line
Publication number
20060182095
Publication date
Aug 17, 2006
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone communication system over a single telephone line
Publication number
20060182094
Publication date
Aug 17, 2006
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for delivering secured telephony service in a...
Publication number
20060113843
Publication date
Jun 1, 2006
Mediaone Group, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone communication system over a single telephone line
Publication number
20050117603
Publication date
Jun 2, 2005
Serconet, Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for delivering secured telephony service in a...
Publication number
20050034168
Publication date
Feb 10, 2005
Mediaone Group, Inc.
Gregory J. Beveridge
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone communication system over a single telephone line
Publication number
20050008033
Publication date
Jan 13, 2005
Serconet Ltd.
Yehuda Binder
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and device for setting up voice conferences
Publication number
20040064505
Publication date
Apr 1, 2004
Johann Hartl
H04 - ELECTRIC COMMUNICATION TECHNIQUE