Driver isolating circuit for common bus-type transmission of loc

Details Driver isolating circuit for common bus-type transmission of loc Driver isolating circuit for common bus-type transmission of loc

1985-10-08

1987-08-04

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 36, 361 86, 361 98, H02H 308

Patent

active

046851135

ABSTRACT:
A driver in a transceiver for a common bus-type transmission system of a local area network includes a switching transistor for receiving a transmission data signal from a station and outputting a forward data signal to a bus, a diode for stopping data entry from a bus to the switching transistor, a first data detection circuit for detecting the presence of the transmission data signal, a second data detection circuit for detecting the presence of the forward data signal, a determination circuit for detecting the occurrence of the short circuit of either one of the switching transistor and the diode, and a controller for controlling the conduction between the switching transistor and the bus.

REFERENCES:
patent: 3931547 (1976-01-01), Glogolia
patent: 3938008 (1976-02-01), Knepper et al.
patent: 4276442 (1981-06-01), Ienaka et al.
patent: 4384363 (1983-05-01), Lipcon

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