Multiplex control system

Details Multiplex control system Multiplex control system

1988-03-02

1989-07-18

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 96, H04J 302

Patent

active

048499676

ABSTRACT:
A multiplex control system e.g. for the facia of a vehicle comprises a control unit and a plurality of input elements e.g. control switches connected to a wiring bus, the control unit transmitting a pulse train along the bus and each input element including a circuit which counts the pulses in the train and modifies the jth pulse (where j is a count unique to that particular input element) if that input element is in a predetermined condition (e.g. the control switch is operated). The control unit is arranged to detect any such pulse modification to identify the corresponding input element and e.g. operate a load device accordingly.

REFERENCES:
patent: 3814861 (1974-06-01), Robbins
patent: 4149144 (1979-04-01), Diefenderfer
patent: 4679192 (1987-07-01), Vandrabant
patent: 4736367 (1988-04-01), Wroblewski et al.

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