Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2007-10-02
2007-10-02
Epps, Georgia (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140LS, C250S208200, C250S208100, C327S514000
Reexamination Certificate
active
10463502
ABSTRACT:
A photocell system includes a current control circuit that provides an offset voltage. Each photocell in a photocell array includes an opto-electrical converter receives the offset voltage such that the opto-electrical converter establishes a DC operating point. In one embodiment, each photocell includes the current control circuit. In an alternate embodiment, a single current control circuit provides the offset voltage for the entire photocell array.
REFERENCES:
patent: 3576452 (1971-04-01), Smith
patent: 5548112 (1996-08-01), Nakase et al.
patent: 5572074 (1996-11-01), Standley
patent: 6023357 (2000-02-01), Miyasita
patent: 6525305 (2003-02-01), Deschamps et al.
patent: 6849845 (2005-02-01), Lauffenberger et al.
patent: 2003/0178552 (2003-09-01), Hofmeister et al.
Avago Technologies General IP Pte Ltd
Epps Georgia
Lee Patrick J.
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