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:
Nov. 14, 2023
Filed:
May. 04, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Ryunosuke Bannai, Kanagawa, JP;
Hideyuki Okada, Saitama, JP;
Kentaro Fujiyoshi, Irvine, CA (US);
Yoshiaki Serizawa, Kanagawa, JP;
Shuichi Fujita, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A radiographic apparatus includes a plurality of pixel groups, bias sources, and a sensing unit, wherein each pixel group includes a pixel including a conversion element for converting radiation into a charge. Each bias source supplies a bias potential to the conversion element of a pixel via a bias line. The sensing unit samples a first signal value indicating a current flowing through a first bias line connected to a first pixel group including a pixel of which a switch element is turned on and a second signal value indicating a current flowing through a second bias line connected to a second pixel group where the switch element is off at timings overlapping at least in part and determines presence or absence of radiation irradiation based on the first signal value and the second signal value. The first and second bias lines have substantially same time constants.