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.

Date of Patent:
Feb. 09, 2021

Filed:

Nov. 05, 2018
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Masato Ofuji, Takasaki, JP;

Minoru Watanabe, Yokohama, JP;

Kentaro Fujiyoshi, Tokyo, JP;

Sho Sato, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01); G01T 1/24 (2006.01); H04N 5/367 (2011.01); H04N 5/32 (2006.01);
U.S. Cl.
CPC ...
G01T 1/247 (2013.01); H04N 5/32 (2013.01); H04N 5/367 (2013.01);
Abstract

A radiation imaging apparatus includes a pixel portion in which a plurality of pixels, each pixel including a conversion element configured to convert radiation into charge, are arranged in a matrix, a driving circuit configured to drive a plurality of driving lines and a processing unit configured to process a signal from the pixel portion. The driving circuit performs a reset operation in which the conversion elements of the plurality of pixels are repetitively reset. The pixel portion includes rows in which the pixels have been divided into a plurality of groups. The conversion elements of the plurality of groups are reset at different timings in the reset operation, and the processing unit corrects, by using a signal of a pixel of another group, a signal of a pixel of a group with data deficiency caused by the reset operation.


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