Patent
1975-09-29
1977-12-06
Stewart, David L.
179 15AT, H04J 600
Patent
active
040618790
ABSTRACT:
A method and apparatus are described for transmitting, over switching apparatus, digital information signals, together with a preceding address signal, wherein the address signal indicates a signal receiver capable of receiving the information signals in any time sequence. The information signals emanating from a given signal transmitter, prior to being transmitted to the switching apparatus, are individually stored, and only after a predetermined number of information signals are present are the information signals and related address signals transmitted. In the switching apparatus the address signal is used to establish a connection between the switching apparatus input and the switching apparatus output connected to the addressed signal receiver only for the period during which the information signals are transmitted.
REFERENCES:
patent: 3643030 (1972-02-01), Sparrendahl
patent: 3890469 (1975-06-01), Kelly
patent: 3894189 (1975-07-01), Edstrom
Engineering Electronics by John D. Ryder, 2nd Ed., copyright 1967 by McGraw-Hill, p. 413.
Applied Physics Lab (APL) Technical Digest, Sept.-Oct. 1971, "A Time Division Multiplexing System . . ." by Appel et al., p. 212.
Siemens Aktiengesellschaft
Stewart David L.
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