Switch matrix for data transfers

Details Switch matrix for data transfers Switch matrix for data transfers

1978-04-03

1980-03-04

Yusko, Donald J.

Communications: electrical

Digital comparator systems

179 18EA, 340147C, H04Q 300

Patent

active

041919416

ABSTRACT:
A switch matrix for connecting any one of a large number of communications lines, transmitting a message header, with any other non-busy one of the lines. A plurality of connection links are provided. A message header identifies a transmitting line carrying a request-to-send signal, and the address of a desired receiving line. Means responsive to a received header determines the availability of an unconnected link and the not-busy condition of the desired receiving line, and connects a selected link from the transmitting line to the desired receiving line, whereby to permit the transfer of information. A link-activity checker operates automatically to disconnect a link when transmission of data through the link ceases.

REFERENCES:
patent: 3859470 (1975-01-01), Dittrich et al.
patent: 3866178 (1975-02-01), Muller et al.
patent: 3916124 (1975-10-01), Joel, Jr.
patent: 3916380 (1975-10-01), Fletcher et al.
patent: 4034159 (1977-07-01), Buron
patent: 4081612 (1978-03-01), Hafner

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