Solid-state imaging device and apparatus with an increased...

Details Solid-state imaging device and apparatus with an increased... Solid-state imaging device and apparatus with an increased...

2008-02-11

2011-11-22

Ometz, David (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S308000, C250S208100

Reexamination Certificate

active

08063960

ABSTRACT:
A solid-state imaging device includes a reference-signal generating unit that generates plural kinds of reference signals for converting an analog pixel signal into digital data, a reference-signal selecting unit that selects any one of the plural kinds of reference signals, a comparing unit that compares the pixel signal and the selected reference signal, and a count unit that performs count processing in parallel with comparison processing in the comparing unit and stores a count value at a point when the comparison processing is completed. The count unit decides digital data of the pixel signal in a 1 LSB step by storing a count value at a point when the comparison processing is completed for any one of the plural kinds of reference signals and correcting the stored count value on the basis of results of the comparison processing for respective remaining reference signals of the plural kinds of reference signals.

REFERENCES:
patent: 6518910 (2003-02-01), Sakuragi et al.
patent: 2005/0195304 (2005-09-01), Nitta et al.
patent: 2006/0158541 (2006-07-01), Ichikawa
patent: 2006/0219866 (2006-10-01), Egawa et al.
patent: 2005-347932 (2005-12-01), None
patent: 2008-054256 (2008-03-01), None
A Japanese Office Action dated Feb. 3, 2009 issued in connection with counterpart Japanese Patent Application No. 2007-031889.

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