System for transmitting and receiving data in a time-division mu

Details System for transmitting and receiving data in a time-division mu System for transmitting and receiving data in a time-division mu

1987-09-17

1989-04-11

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 9, 307 101, H04J 302

Patent

active

048212628

ABSTRACT:
A time-division multiplexing data transmission/reception system applicable to a vehicle is disclosed in which a multiplexing synchronizer, for generating and outputting a pulse train signal to a single data transmission line, is connected between a power supply and a data transmission line. The pulse train signal has a master synchronization interval defined by disconnecting the power supply from the signal transmission line for a first predetermined time width and has a plurality of communication channel intervals, each communication channel interval being defined by connecting the power supply to the signal transmission line for a second predetermined time width followed by disconnecting the power supply from the signal transmission line for a third predetermined width. A transmitter transmits data, having one of two different pulse widths during a specified communication channel interval, to the signal transmission line. Then, a receiver receives data whose pulse width is changed according to the input state of an external apparatus which is connected to the transmitter and outputs the data to an external load thereof so that the load is actuated or deactuated.

REFERENCES:
patent: 4176250 (1979-11-01), Berglind
patent: 4241444 (1980-12-01), Kister
patent: 4370561 (1983-01-01), Briggs
patent: 4674084 (1987-06-01), Suzuki et al.
patent: 4694294 (1987-09-01), Suzuki et al.
patent: 4706245 (1987-11-01), Suzuki et al.
patent: 4712211 (1987-12-01), Suzuki et al.

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