Optical communication system

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency

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455607, H04B 900

Patent

active

047094117

ABSTRACT:
In an optical communication system, transmitter/receivers located remote from each other have an identical construction and are accurately positioned relative to each other by means of photodetectors. Each apparatus includes a transmitter section and a receiver section which are disposed in a common transparent housing. Such a construction is applicable even to a repeater between the remote apparatuses by building another set of transmitter and receiver sections in the apparatus.

REFERENCES:
patent: 2982859 (1961-05-01), Steinbrecher
patent: 3504182 (1970-03-01), Pizzurro et al.
patent: 3566126 (1971-02-01), Lang et al.
patent: 4090067 (1978-05-01), Bell, III et al.
patent: 4393518 (1983-07-01), Briley
patent: 4491982 (1985-01-01), Candy et al.
Lanham-Air Force Lasercom Space Measurement Unit-Conf. NTC '80 IEEE 1980 Nat. Telecomm. Conf. Houston, Tex.-Nov. 30-Dec. 4, 1980, pp. 27.2.1-27.2.3.

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