H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/10
H04J 3/02 (2006.01) G06F 11/00 (2006.01) G06F 11/07 (2006.01) G06F 13/12 (2006.01) G06F 13/22 (2006.01) G06F 13/42 (2006.01) H04L 12/52 (2006.01)
Patent
CA 1229183
S P E C I P I C A T I O N INPUT-OUTPUT MULTIPLEXER-DEMULTIPLEXER COMMUNICATIONS CHANNEL ABSTRACT The disclosure relates to an input-output multiplexer demultiplexer communication channel which transfers data between a communications controller and a multiplicity of radially attached communications ports. Self-clocking serial bit- synchronous data is transferred on two opposing unidirectional data links between the communications controller and the commu- nications channel. Serial bit-synchronous data is transferred between the communications channel and the communications ports. the communications channel uses one-bit time-response round- robin polling when the communications channel initiates trans- missions from the communications ports. Data transmission from the communications controller are multiplexed on-the-fly in the communications channel to one of the communications ports.
467294
Smart & Biggar
Tandem Computers Incorporated
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