Loop or ring system

Industry

CPC
H04Q2213/298

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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems

Current Industry

H04Q2213/298Loop or ring system

Industries

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Patents Grantslast 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

Loop or ring system

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Control of the change of telecommunications channels in a DECT-spec...

Cellular cordless telecommunications system

Assigning channels of different capacities in a hybrid ISDN-DECT te...

Distinctive ringing and distinctive call-waiting tones in an ISDN

Circuit arrangement for integration of EDP systems in the utilizati...

Digital communication system

ISDN-to-ISDN communication via satellite microwave radio frequency...

Radio communication apparatus for ISDN

ISDN terminal adapter with teleconference provision

Patents Applicationslast 30 patents