Optically isolated contention bus

Details Optically isolated contention bus Optically isolated contention bus

1983-04-04

1986-06-17

Orsino, Jr., Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

250551, 307311, H04B 900

Patent

active

045960488

ABSTRACT:
Optical isolation means electrically isolates the electrical network ground of a logical contention bus from a transmitter coupled to the bus and having a local logic ground and a receiver coupled to the bus and having a remote logic ground. Optical isolation means may comprise a light source, such as a light emitting diode, and a light sensitive receiver optically coupled to and electrically isolated from the light source.

REFERENCES:
patent: 3541239 (1970-11-01), Reid
patent: 3970784 (1976-07-01), Meijerink
patent: 4032843 (1977-06-01), Loucks
patent: 4095125 (1978-06-01), Ingle
patent: 4243890 (1981-01-01), Miller et al.
Great Britain Patent Application No. 2,061,672, by M. P. Gower, 5/13/81.
European Patent Application No. 0,044,685, by C. McCarthy, 1/27/82.

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