Processes for testing bi-directional serial transmissions, and c

Details Processes for testing bi-directional serial transmissions, and c Processes for testing bi-directional serial transmissions, and c

1992-02-28

1995-03-28

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

370 13, 375257, H04B 346, H04B 1700, H04Q 120, H04J 116

Patent

active

054024404

ABSTRACT:
The invention relates to tests for verifying the integrity of circuits (16) for serial bi-directional transmissions. These tests are capable of testing transceivers (12) operating a very high frequency without creating interference and consist in either leaving the serial output of the transceiver (12) disconnected from the line (L), or disconnecting (INF) its adaptation impedance, commanding the transmission of signals, and comparing the signals transmitted to the reception signals detected by the same transceiver. In a variant, the adaptation impedance of the transceiver of the remote station may be disconnected.

REFERENCES:
patent: 3700831 (1972-10-01), Aagaard et al.
patent: 3909559 (1975-09-01), Taylor
patent: 4918685 (1990-04-01), Tol et al.
patent: 5128962 (1992-07-01), Kerslake
patent: 5216667 (1993-06-01), Chu et al.
patent: 5253249 (1993-10-01), Fitzgerald et al.
Patent Abstracts of Japan; vol. 7, No. 280, Dec. 1983.
Patent Abstract of Japan JP 59 159 406, vol. 9, No. 47, Feb. 27, 1985.

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