Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1975-06-23
1976-07-06
La Roche, Eugene
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250199, 250551, 307311, H03F 308, H04B 900
Patent
active
039683613
ABSTRACT:
A circuit for preventing laser receiver overload caused by sunlight wherein feedback network provides a d.c. current to cancel the d.c. level of the diode current; and, a receiver design alternative to conventional designs wherein higher sensitivity is provided by maximizing the signal to noise ratio and processing by dual equalization to reshape the frequency response to achieve a flat response over the frequency range of interest.
REFERENCES:
patent: 3576452 (1971-04-01), Smith
patent: 3652791 (1972-03-01), Shuey
patent: 3729633 (1973-04-01), Eros et al.
patent: 3801933 (1974-04-01), Teare
Adams Robert W.
La Roche Eugene
Miller Roy
Sciascia R. S.
The United States of America as represented by the Secretary of
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