Time orthogonal multiple virtual dce for use in analog and digit

Multiplex communications – Wide area network – Packet switching

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370 951, 370 857, 3701041, H04J 316

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active

049378198

ABSTRACT:
Apparatus and method for time division multiple access in a multidrop system with multiple host applications employing half-duplex polled protocols is disclosed. Ranging with respect to time is used so as to reduce guard time between successive transmissions thereby increasing system efficiency. Host applications can request extra time slots for long messages via a request bit within the message format.

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