Transmission-reception circuit

Pulse or digital communications – Cable systems and components

Patent

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Details

375219, 375287, 375318, 370 32, H04B 100

Patent

active

054992699

ABSTRACT:
A transmission-reception circuit, including a transmitter circuit and a receiver circuit connected to each end of a transmission line, for transmitting and receiving a signal to another receiver circuit and from another transmitter circuit at the other end across the transmission line, wherein in order to enable logical decision on a receiving signal to be made accurately and secure high reliability in a fully duplex simultaneous two-way communication, power supply lines are laid at opposite ends of the transmission line and threshold voltages for logical decision on a signal received by the receiver circuit are supplied from a power unit used for the transmitter circuit and the receiver circuit at the other end of the transmission line.

REFERENCES:
patent: 4437021 (1984-03-01), Sumi et al.
patent: 4573168 (1986-02-01), Henze et al.
patent: 4605864 (1986-08-01), Yaradaragan et al.
patent: 4860309 (1989-08-01), Costello
patent: 4899332 (1990-02-01), Crutcher et al.
patent: 5355390 (1994-10-01), Yamamoto et al.

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