High reliability optical fiber communication system

Details High reliability optical fiber communication system High reliability optical fiber communication system

1979-10-11

1981-12-15

Orsino, Jr., Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

17917535, 1791753F, 455 8, 455612, H04B 900

Patent

active

043063136

ABSTRACT:
There is disclosed an optical transmission system which employs a plurality of receiver-transmitter pairs. One of the plurality of pairs is selected to propagate optical signals under control of switching means. The optical signal as propagated is monitored and if a fault is detected in the signal, another redundant receiver-transmitter pair is automatically switched in. This pair is also monitored to determine whether or not the optical signal is valid and if not, the sequence continues until a valid signal is being propagated.

REFERENCES:
patent: 3859468 (1975-01-01), Smith et al.
patent: 4030069 (1977-06-01), Henrickson et al.
patent: 4166946 (1979-09-01), Chown et al.
Milton-Optical Fiber Applications-Conf. Agard Lecture Series No. 76 on E-O Systems-London Eng., 19-20 May 1975, pp. 8-1 to 8-21.

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