Optical fiber data link system

Details Optical fiber data link system Optical fiber data link system

1986-05-08

1988-05-03

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455601, 370 89, 34082507, H04B 900, G05B 2302, H04J 316

Patent

active

047425725

ABSTRACT:
An optical fiber data link system comprising a controller and one or more stations, all of which are connected to one another by a series of optical fibers providing a single loop as a whole. At least one data input module and/or one data output module is connected to each station. The controller includes a light receiving element, a serial-parallel converter, an circuit for generating an address/data indicating signal, an address setting circuit, a parallel-serial converter and a luminous element. Each station includes a light receiving element, a serial-parallel converter, an address/data distinguish circuit, a parallel-serial converter and a luminous element. Each data input module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and one or more input terminals. Each data output module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and one or more output terminals.

REFERENCES:
patent: 3577187 (1971-04-01), Benson
patent: 4383315 (1983-05-01), Torng
patent: 4486750 (1984-12-01), Aoki
patent: 4554673 (1985-11-01), Stevens
patent: 4602366 (1986-07-01), Takumi
patent: 4654890 (1987-03-01), Hasegawa et al.

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