Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2006-10-10
2006-10-10
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
Reexamination Certificate
active
07119320
ABSTRACT:
A photo-sensitive element for electro-optical sensors, includes a photo-sensitive reception member, a current conversion circuit to convert the current generated by the photo-sensitive reception member into a voltage signal, and an amplification and reading circuit. The current conversion circuit includes a P-channel transistor used as an ideal key and piloted with a voltage that can vary between a high feed voltage and a low feed voltage. The photo-sensitive element is taken to a reset state if the pilot voltage of the transistor is low, and to an integration state if the pilot voltage is high.
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Sartori Alvise
Vatteroni Monica
Neuricam SpA
Stevens Davis Miller & Mosher LLP
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