Multiplex communications – Wide area network – Packet switching
Patent
1983-02-04
1985-04-16
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 312
Patent
active
045120170
ABSTRACT:
There is disclosed a digital telephone having dual voice and data handling capability over a single communication line. Time separated information channels are used to transport the voice and data information between the terminal and the main processor. A separate signaling channel is shared between the two information channels and information on the signaling channel is accumulated for distribution to either the voice device or the data device in accordance with address information contained within the accumulated signaling channel message.
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patent: 4258434 (1981-03-01), Glowinski et al.
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patent: 4403322 (1983-10-01), Kato et al.
patent: 4420831 (1983-12-01), Hackett
"Diavox Courier 700, Digital Switching Telephone for MD 110"; Ericsson Review, No. 2, 1982, pp. 22-30; Reinius et al.
"System Evolution-Integrated Services Network"; International Switching Symposium, Montreal; Sep. 21-25, 1981, Session 41B, Paper 1, pp. 1-7; Oliver et al.
Nici Richard J.
Schramm George W.
Sharp John B.
AT&T Information Systems
Olms Douglas W.
Scutch III Frank M.
Tannenbaum David H.
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