Multiplex communications – Wide area network – Packet switching
Patent
1986-09-16
1988-11-08
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04L 500
Patent
active
047837780
ABSTRACT:
The Synchronous Packet Manager is the interface for switching synchronous data between a data terminal equipment and a combination data and telephone switching system in a proprietary packet format. A first microprocessor controlled circuit controls data to be received from the switching system or forwarded to it and communicates with a second microprocessor controlled circuit for controlling data to or from a terminal equipment via a common memory.
REFERENCES:
patent: 4578789 (1986-03-01), Middleton et al.
patent: 4584690 (1986-04-01), Cafiero et al.
patent: 4637035 (1987-01-01), Betts
"8274 Multi-Protocol Serial Controller (MPSC)", Intel Corp., 1980, pp. 1-35.
Finch William W.
Sencer Gulay
GTE Communication Systems Corporation
Hendricks Gregory G.
Marcelo Melvin
Olms Douglas W.
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