Digital signal transmission system

Details Digital signal transmission system Digital signal transmission system

1982-12-17

1985-03-26

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 14, 179 2C, H04L 514

Patent

active

045077932

ABSTRACT:
A signal transmission system which allows digital signals to be transmitted over twisted pair transmission lines. Master and slave transmission circuits are located at the switching system and terminal ends, respectively, of the transmission line. Both circuits include transmit and receive circuitry. The transmit circuitry includes a summing circuit connected to a constant current generator and the receive circuit includes an adaptive equalization/automatic gain control circuit connected between a differential amplifier and a slicer circuit.

REFERENCES:
patent: 3585399 (1971-06-01), Andrews, Jr.
patent: 3827026 (1974-07-01), Viswanathan
patent: 4083005 (1978-04-01), Looschen
patent: 4101734 (1978-07-01), Dao
patent: 4303896 (1981-12-01), Slabinski
patent: 4337465 (1982-06-01), Spracklen et al.

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