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:
Oct. 10, 2017
Filed:
Feb. 12, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Shingo Isobe, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image pickup apparatus outputs a picked-up image signal based on a difference between an electric charge signal and a noise signal generated by a photoelectric converter. The apparatus has a generating unit that generates a difference image that is based on a difference between a first image picked up under a first image pickup condition and a second image picked up under a second image pickup condition in which an exposure amount of the photoelectric converter is smaller than the exposure amount of the photo electric converter in the first image pickup condition, a detector that detects a black spot area on the basis of the difference image generated by the generating unit, and a voltage controller that controls a clip voltage that is set to limit a voltage of the noise signal, on the basis of the detected black spot area.