Solid-state image capture device, analog/digital conversion...

Details Solid-state image capture device, analog/digital conversion... Solid-state image capture device, analog/digital conversion...

2008-07-30

2010-12-28

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S294000

Reexamination Certificate

active

07859583

ABSTRACT:
A solid state image capture device includes a pixel array unit having unit pixels including a photoelectric conversion element disposed in a matrix shape and analog/digital conversion means for converting an analog pixel signal read from the unit pixel of the pixel array unit into digital data. The analog/digital conversion means includes a comparator unit for converting a magnitude of the pixel signal into information in a time axis direction, a counter unit for performing a count process during a time period from a start time of a comparison process at the comparator unit to an end time of the comparison process, a multi-phase clock generate unit for generating multi-phase clocks having a constant phase difference, a latch unit for latching logic states of the multi-phase clocks, and a decode unit for decoding latch data of the latch unit to obtain a value lower than a count value.

REFERENCES:
patent: 2008/0211951 (2008-09-01), Wakabayashi et al.
patent: 2009/0316015 (2009-12-01), Iwasa et al.
patent: 2004-260517 (2004-09-01), None
patent: 2005-303648 (2005-10-01), None
patent: 2007-019682 (2007-01-01), None
Japanese Office Action issued on Jun. 16, 2009 in connection with JP Application No. 2007-203786.

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