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:
Sep. 04, 2018
Filed:
Sep. 20, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Akira Tsukuda, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A radiation imaging apparatus that has a plurality of pixels capable of outputting an image signal in accordance with an irradiation of radiation comprises a photoelectric conversion unit which has a first capacitance and a second capacitance as charge accumulation capacitances and a gain correction unit configured to correct a pixel value in relation to a dose of the irradiated radiation based on an image signal outputted in accordance with a charge accumulated by the photoelectric conversion unit. The gain correction unit changes an interval of gain correction points at which to perform correction in accordance with a switch from a first capacitance to a second capacitance.