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CPC
H04Q2213/298
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H
ELECTRICITY
H04
Electric communication
H04Q
SELECTING
H04Q2213/00
Indexing scheme relating to selecting arrangements in general and for multiplex systems
Current Industry
H04Q2213/298
Loop or ring system
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Patents Grants
last 30 patents
Information
Patent Grant
Control of the change of telecommunications channels in a DECT-spec...
Patent number
6,584,114
Issue date
Jun 24, 2003
Siemens Aktiengesellschaft
Horst Flake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cellular cordless telecommunications system
Patent number
6,226,515
Issue date
May 1, 2001
Siemens Aktiengesellschaft
Burkhard Pauli
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Assigning channels of different capacities in a hybrid ISDN-DECT te...
Patent number
6,175,738
Issue date
Jan 16, 2001
Siemens Aktiengesellschaft
Horst Flake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distinctive ringing and distinctive call-waiting tones in an ISDN
Patent number
5,953,407
Issue date
Sep 14, 1999
Nortel Networks Corporation
Genzao Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for integration of EDP systems in the utilizati...
Patent number
5,631,953
Issue date
May 20, 1997
CSB-System Software -Entwicklung & Unternehmungsberatung GmbH
Gottfried Thomas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital communication system
Patent number
5,519,702
Issue date
May 21, 1996
NEC Corporation
Hideaki Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ISDN-to-ISDN communication via satellite microwave radio frequency...
Patent number
5,412,660
Issue date
May 2, 1995
Trimble Navigation Limited
David T. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication apparatus for ISDN
Patent number
5,357,558
Issue date
Oct 18, 1994
Sony Corporation
Munehiro Yoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
ISDN terminal adapter with teleconference provision
Patent number
4,998,243
Issue date
Mar 5, 1991
Racal Data Communications Inc.
Ming-Luh Kao
H04 - ELECTRIC COMMUNICATION TECHNIQUE