Multiplex communications – Wide area network – Packet switching
Patent
1994-04-25
1995-11-14
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 601, 370 84, 370 856, 370 857, 370 942, 370 951, H04J 316
Patent
active
054673445
ABSTRACT:
The bandwidth of a packet data transmission node is switched asynchronously without interruption of data transmission and with a minimum of circuit complexity. In particular, a packet channel is permitted to "breathe", gaining bandwidth when additional bandwidth becomes available from other temporarily unused digital channels and losing such additional bandwidth when such unused digital channels revert to other use. To permit such uninterrupted asynchronous operation, a "pad" or "throw away" character is defined which is ignored or discarded when it is received by another packet network node. Such a "pad" or "throwaway" character is unique only in the sense that it is distinct from and may not be confused with characters or bytes which may occur in normal data transmission sequences.
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Gish David W.
Mendelson Jeffrey B.
Putnins Zigmunds A.
Solomon David
Ardis Robert B.
Ascom Timeplex Trading AG
Blum Russell W.
Olms Douglas W.
Ostroff Irwin
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