Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1978-08-29
1981-07-28
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
250211J, 350 9616, 357 17, 357 19, H01L 3112, H01L 3300
Patent
active
042812534
ABSTRACT:
A bidirectional optical fiber cable assembly that has electrical connectors on each end and a data bus employing same are disclosed, thereby facilitating the implementation of optical fiber communication links. The bidirectional optical fiber cable assembly uses a dual function diode which functions both as a light emitter and as a detector of optical signals. This diode, which is contained within an electrical connector at the end of the cable assembly, is connected by wires to the electrical terminals of the connector and is positioned against the end of an optical fiber, which transmits the signal along the fiber cable. The use of such a cable assembly in a data bus allows the design of a data bus in which the function of signal transmission is conducted by optical signals, a function for which they are best suited by virtue of resistance to electrical interference, and in which connection and distribution of signals is done electrically, a function for which electronics is better suited than is optics. A bidirectional optical communication system that communicates directly along a path in the air is also facilitated by the use of a dual function diode.
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R. Hoss & Dr. F. Weigl; "A Fiber Optically Linked 100 Channel Voice Intercom"; Collins Radio Group, Rockwell International Corp., Dallas, Texas; Feb. 1975; pp. ThA5-1 to ThA5-4.
Nelms David C.
Optelecom, Inc.
Westin Edward P.
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