Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1983-02-28
1985-02-12
Orsino, Jr., Joseph A.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
307559, 358171, 455608, 455612, H04B 900
Patent
active
044996098
ABSTRACT:
In a fiber optic receiver of the type comprising a photodetector, a preamplifier, a postamplifier and a voltage comparator for quantizing the output to a logic level signal, the improvement comprising symmetrical clamp means interposed between said postamplifier and said voltage comparator.
REFERENCES:
patent: 2636080 (1953-04-01), Doba, Jr.
patent: 2853630 (1958-09-01), Lang et al.
patent: 3610962 (1971-10-01), Meyer
Eppes et al., "A Two Kilometer Optical Fiber", Conf. Electromag. Wave Prop. Panel/Avionic Panel Joint Symp., London, England, May 16-20, 1977, pp. 147-149.
International Telephone and Telegraph Corporation
O'Halloran John T.
Orsino Jr. Joseph A.
Ruzek Peter R.
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