Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2006-07-10
2008-12-23
Lee, John R (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S214100, C250S208100
Reexamination Certificate
active
07468502
ABSTRACT:
A CMOS light sensor and the operation method thereof are disclosed. The CMOS light sensor has a plurality of light sensing lines and a plurality of capacitor lines. Each light sensing line has a plurality of light sensors such that the number of capacitors in each capacitor line is smaller than the number of light sensing cells in each light sensing line. The capacitors are used for holding a portion of the potentials produced by the light sensing cells due to illumination. The method of operating the CMOS light sensor includes transferring the data captured by the light sensing line to the capacitor line and reading out the data according to a pre-defined order so that the leakage of charges from the capacitor is reduced.
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Le, Que Tan, U.S. Appl. No. 11/736,354 Office Action Paper No. 20080314, USPTO, Mar. 26, 2008.
Chen Shih-Huang
Lin Ben Min-Jer
Lee John R
Stolowitz Ford Cowger LLP
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