Multiplex communications – Wide area network – Packet switching
Patent
1988-02-11
1989-02-28
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 316
Patent
active
048092703
ABSTRACT:
A time division communication system having peripheral devices controlled om a port circuit is arranged such that the port circuit may have assigned to it a variable number of time slots for any peripheral device associated therewith. Each port circuit has a microprocessor control device which is capable of controlling communication to or from the port circuit over the system time division bus or to and from the port circuit and the peripheral over a variable number of time slots, none of which are preassigned to the port circuit.
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patent: 4366566 (1982-12-01), Cochennec
patent: 4389720 (1983-06-01), Baxter et al.
patent: 4488293 (1984-12-01), Haussmann et al.
Baxter Leslie A.
Berkowitz Paul R.
American Telephone and Telegraph Company AT&T Information Systems Inc.
Chin Wellington
Olms Douglas W.
Padnes David R.
Tannenbaum David H.
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