Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting
More topics under "H04Q - Selecting" (114,537)
H04Q 1 - Details of selecting apparatus or arrangements (11,745)
H04Q 11 - Selecting arrangements for multiplex systems (43,004)
H04Q 3 - Selecting arrangements (38,975)
H04Q 5 - Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange (6,717)
H04Q 9 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom (14,096)
Patents for H04Q - Selecting (918)
06/1993
06/16/1993EP0546151A1 Application modularity in telecommunications exchanges
01/1993
01/07/1993WO1993000776A1 Application modularity in telecommunications exchanges
01/07/1993WO1993000775A1 Stored program controlled digital public exchange
12/1991
12/31/1991CA1293820C Input/output network for computer system
08/1991
08/07/1991CN1013467B Operating method of wideband/multislot switching apparatus
06/1991
06/04/1991US5022026 Method of throughconnecting wideband connections in a digital time switch module between subscribers, and a device for carrying out the method
01/1991
01/02/1991EP0406191A1 Method of througconnecting wideband connections in a digital time switch module between subscribers and a device for carrying out the method
12/1990
12/27/1990WO1991000678A1 Method of throughconnecting wideband connections in a digital time switch module between subscribers, and a device for carrying out the method
12/19/1990EP0403451A1 A method and arrangement for detecting and localizing errors or faults in a multi-plane unit incorporated in a digital time switch
12/17/1990WO1990016132A1 A method and arrangement for detecting and localizing errors of faults in a multi-plane unit incorporated in a digital time switch
07/1990
07/10/1990US4941089 Input/output network for computer system
09/1988
09/07/1988CN88100917A Wideband/multislot switching apparatus
06/1988
06/16/1988WO1988004511A1 Input/output network for computer system
09/1986
09/02/1986CA1210871A1 Guard tone capture method
11/1985
11/19/1985US4554542 Guard tone capture method
01/1985
01/16/1985EP0131018A1 Guard tone capture method
06/1984
06/21/1984WO1984002443A1 Guard tone capture method
10/1978
10/10/1978US4119805 Line-control unit for telecommunication system
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