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:
Dec. 19, 2017
Filed:
Apr. 25, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Mineo Uchida, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image pickup apparatus comprising a pixel configured to convert optical signal into an electrical signal, a comparison unit configured to compare a pixel signal from the pixel with a reference voltage, an A/D conversion unit configured to analog/digital (A/D)-convert the pixel signal in a conversion mode selected based on a comparison result of the comparison unit, and a correction unit configured to correct at least one of an offset and a gain generated by the A/D conversion for an output data of the A/D conversion unit, wherein a value for offset correction or gain correction performed by the correction unit is changed according to the selected conversion mode.