Solid-state image pickup device, driving method thereof, and...

Details Solid-state image pickup device, driving method thereof, and... Solid-state image pickup device, driving method thereof, and...

2011-03-22

2011-03-22

Aggarwal, Yogesh K (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S302000, C348S308000, C341S158000, C341S168000, C341S172000

Reexamination Certificate

active

07911519

ABSTRACT:
A solid-state image pickup device includes a pixel array including pixels arranged in a matrix, a pixel signal readout unit, and a timing control unit for controlling processing of the pixel signal readout unit by using a timing signal. The pixel signal readout unit includes: a plurality of comparators for comparing a readout signal potential with a reference voltage to generate a determination signal and outputting the determination signal, and a plurality of counters. Each counter counts a comparison time of each corresponding one of the comparators. The timing control unit (a) divides a predetermined processing period into at least a first-time readout period, a first comparison period, a second-time readout period, and a second-time comparison period, (b) classifies the periods into two periods, and (c) generates a timing signal of processing of each divided period by counting for each divided period in the counter.

REFERENCES:
patent: 7113212 (2006-09-01), Yonemoto et al.
patent: 2005/0195304 (2005-09-01), Nitta et al.
patent: 2008/0273107 (2008-11-01), Taura
patent: 2005-303648 (2005-10-01), None
patent: 2005-323331 (2005-11-01), None
W. Yang et al.; An Integrated 800×600 CMOS Image System; ISSCC Digest of Technical Papers; pp. 304-305; Feb. 1999.

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