Supervisory signals

Industry

CPC
H04Q2213/172

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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

H04Q2213/172Supervisory signals

Industries

Patents Grantslast 30 patents

Information Patent Grant
Transmission system, transmission device, and transmission method
- Patent number 11,228,822
- Issue date Jan 18, 2022
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system, transmission device, and transmission method
- Patent number 10,904,648
- Issue date Jan 26, 2021
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication apparatus receiving information from portable informa...
- Patent number 5,703,936
- Issue date Dec 30, 1997
- Canon Kabushiki Kaisha
- Shinji Tsuchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information display provided to calling party
- Patent number 5,608,788
- Issue date Mar 4, 1997
- Lucent Technologies Inc.
- William W. Demlow
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communication terminal and the method using the same
- Patent number 5,426,692
- Issue date Jun 20, 1995
- Canon Kabushiki Kaisha
- Shunichi Fujise
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange including less display elements than channels
- Patent number 5,381,468
- Issue date Jan 10, 1995
- Canon Kabushiki Kaisha
- Isamu Ozawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interface for a data telephone and data terminal in a digital telep...
- Patent number 5,317,630
- Issue date May 31, 1994
- AT&T Bell Laboratories
- Lee A. Feinberg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ISDN terminal equipment control method
- Patent number 5,268,904
- Issue date Dec 7, 1993
- Ricoh Company, Ltd.
- Toshihiko Umeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD
- Publication number 20210112320
- Publication date Apr 15, 2021
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD
- Publication number 20200169795
- Publication date May 28, 2020
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Supervisory signals

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Transmission system, transmission device, and transmission method

Transmission system, transmission device, and transmission method

Communication apparatus receiving information from portable informa...

Information display provided to calling party

Communication terminal and the method using the same

Telephone exchange including less display elements than channels

Interface for a data telephone and data terminal in a digital telep...

ISDN terminal equipment control method

Patents Applicationslast 30 patents

TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD

TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD