The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2017
Filed:
Oct. 21, 2013
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Tatsuya Yui, Osaka, JP;
Kohzoh Hoshino, Osaka, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Abstract
There is provided a solid-state imaging device capable of correcting a blackening phenomenon caused by intense light, with a small-scale circuit configuration. An AD converterthat performs sampling of an output voltage VS on a column signal lineincludes a comparatorthat compares the output voltage VS with a ramp-wave reference voltage during a sampling period; a judging circuitthat accepts as input an output from the comparatorand judges a voltage level of the output voltage VS; and a memory portionthat stores, as a digital value, a count value corresponding to the output voltage VS, based on an output from the judging circuit. The comparatoramplifies a voltage change of the output voltage VS obtained after a lapse of a reset period in which a voltage of a FD portionin a pixel circuitis reset, and the judging circuitjudges, based on the voltage change, whether light received by the pixel circuitis intense light, during a predetermined detection period between the reset period and a period in which an output voltage Vrst obtained after the reset is sampled.