Title: Wide dynamic range analog signal optical communication system

Abstract: A system for transmitting low level analog signals wherein the analog sigs are converted into frequency modulated light amplitudes which are transmitted by means of an inexpensive fiber optic bundle, and the transmitted modulated light is demodulated at the receiving end to obtain an exact replica of the input signals. The system enables one to maintain a large amplitude dynamic range using an inexpensive photo-transistor.

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Inventors: Huntley, William P. (Old Lyme, CT, US)

Application Number: 610582
Filing Date: 1975-09-05
Publication_date: 1977-03-15
Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Primary Class(es): 398/163 340/870.28, 340/870.29
Other Classes:
US Patent Ref:

3284633	Nov, 1966	Hathaway	250/199.
3488586	Jan, 1970	Watrous et al.	250/199.
3927316	Dec, 1975	Citta	250/199.
3928760	Dec, 1975	Isoda	250/199.

Other Refs:
Primary Examiner: Griffin, Robert L.
Assistant Examiner: Masinick, Michael A.
Attorney: Sciascia; Richard S., McGill; Arthur A., Lall; Prithvi C.