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H04L12/525
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ELECTRICITY
H04
Electric communication
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TRANSMISSION OF DIGITAL INFORMATION
H04L12/00
Data switching networks
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H04L12/525
involving a stored program control
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Patents Grants
last 30 patents
Information
Patent Grant
Programmable logic switch and system
Patent number
10,868,690
Issue date
Dec 15, 2020
Massimo Guerci
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiplex system and method having a time slot reuse...
Patent number
5,163,047
Issue date
Nov 10, 1992
AT&T Bell Laboratories
Achilles Perdikaris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiplex system and method having a time slot reuse...
Patent number
5,121,388
Issue date
Jun 9, 1992
AT&T Bell Laboratories
A. Perdikaris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and arrangement for transmitting data between a central data...
Patent number
5,107,260
Issue date
Apr 21, 1992
Siemens Aktiengesellschaft
Holger Meissner
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Protocol and apparatus for selectively scanning a plurality of line...
Patent number
5,023,867
Issue date
Jun 11, 1991
International Business Machines Corporation
Mohamed Badaoui
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Adaptive digital network interface
Patent number
4,958,342
Issue date
Sep 18, 1990
Aristacom International, Inc.
Stephen J. Williams
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive digital network interface
Patent number
4,935,925
Issue date
Jun 19, 1990
Aristacom International, Inc.
Stephen J. Williams
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital time division multiplex system and method of controlling same
Patent number
4,916,693
Issue date
Apr 10, 1990
Mitsubishi Denki Kabushiki Kaisha
Masayoshi Shimada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wideband/multislot switching arrangement
Patent number
4,905,223
Issue date
Feb 27, 1990
The Plessey Company plc
Richard J. Proctor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiplexer with automatic call function
Patent number
4,899,337
Issue date
Feb 6, 1990
Hitachi, Ltd.
Masato Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data switching arrangement
Patent number
4,891,804
Issue date
Jan 2, 1990
GEC Plessey Telecommunications, Limited
David J. Lake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive digital network interface
Patent number
4,882,727
Issue date
Nov 21, 1989
Aristacom International, Inc.
Stephen J. Williams
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal switching system
Patent number
4,878,215
Issue date
Oct 31, 1989
Telenex Corporation
William P. Rogers
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communications control unit
Patent number
4,849,962
Issue date
Jul 18, 1989
Hitachi, Ltd.
Shigeki Morimoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telecommunication signalling arrangement
Patent number
4,799,256
Issue date
Jan 17, 1989
Siemens Aktiengesellschaft
Renate Mattis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cable system for digital information
Patent number
4,764,939
Issue date
Aug 16, 1988
Telenex Corporation
William P. Rogers
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiplex interface for a communication controller
Patent number
4,760,573
Issue date
Jul 26, 1988
International Business Machines Corp.
Jean L. J. Calvignac
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Digital subscriber loop termination device
Patent number
4,748,637
Issue date
May 31, 1988
Conklin Instrument Corporation
Larry D. Bishop
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital switching network for switching signals of different bit rates
Patent number
4,718,058
Issue date
Jan 5, 1988
Staat der Nederlanden
Franciscus J. van Vugt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for receiving and/or transmitting serially appe...
Patent number
4,691,297
Issue date
Sep 1, 1987
Siemens Aktiengesellschaft
Pieter Wolff
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Time switch in a time division switching network
Patent number
4,680,752
Issue date
Jul 14, 1987
Hitachi, Ltd.
Tetsuo Takemura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Input-output multiplexer-demultiplexer communications channel
Patent number
4,667,321
Issue date
May 19, 1987
Tandem Computers Incorporated
William R. Goodman
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for adjusting transmission rates in data chann...
Patent number
4,661,966
Issue date
Apr 28, 1987
T-Bar Incorporated
Stanley M. Schreiner
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel detecting circuit in a receiver in a time-division multiple...
Patent number
4,660,195
Issue date
Apr 21, 1987
Nitsuko Limited
Michinori Hatabe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for linking channel group in digital communication network
Patent number
4,603,415
Issue date
Jul 29, 1986
Fujitsu Limited
Hiroshi Nakada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data line card printed board assembly
Patent number
4,589,106
Issue date
May 13, 1986
ITT Corporation
Donald W. Prather
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data line interface for a time-division multiplexing (TDM) bus
Patent number
4,485,470
Issue date
Nov 27, 1984
Rolm Corporation
Peter A. Reali
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interface device for coupling a system of time-division multiplexed...
Patent number
4,428,042
Issue date
Jan 24, 1984
Siemens Aktiengesellschaft
Dieter Niethhammer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communications system for interconnecting a plurality of asynchrono...
Patent number
4,423,507
Issue date
Dec 27, 1983
Roger Renoulin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system for interconnecting a plurality of asynchronou...
Patent number
4,413,338
Issue date
Nov 1, 1983
Roger Renoulin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
PROGRAMMABLE LOGIC SWITCH AND SYSTEM
Publication number
20200389336
Publication date
Dec 10, 2020
Massimo Guerci
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Fixed rate data slot scheduling
Publication number
20020172215
Publication date
Nov 21, 2002
Ewa Barbara Hekstra-Nowacka
H04 - ELECTRIC COMMUNICATION TECHNIQUE