Interactive communication circuit for selecting a transmitting c

Details Interactive communication circuit for selecting a transmitting c Interactive communication circuit for selecting a transmitting c

1995-07-24

1998-09-29

Pham, Chi H.

Pulse or digital communications

Transceivers

Transmission interface between two stations or terminals

375257, 375259, 3408255, H04B 302, G06F 13362

Patent

active

058155287

ABSTRACT:
Preventing signals from undesirably entering and enabling interactive communication. Signals from a main line or branch line are received by receiving circuits. Signal detecting circuits detect signals, and then transmit the detected signals (detection B and detection A) to a first-arrival judging circuit. The first-arrival judging circuit determines which signal is the first arrival between the signals from the detecting circuits, and then allows one of transmitting circuits to output a signal. Accordingly, only one of the transmitting circuits generates signals, preventing signals of the other transmitting circuit from entering and enabling interactive communication.

REFERENCES:
patent: 4070545 (1978-01-01), Diefenderfer
patent: 4943979 (1990-07-01), Webber, Jr.
patent: 5398261 (1995-03-01), Marbot
patent: 5402420 (1995-03-01), Kobayashi
patent: 5428640 (1995-06-01), Townley
patent: 5648984 (1997-07-01), Kroninger et al.

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