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:
Feb. 15, 2022
Filed:
Aug. 06, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Asato Kosuge, Kawasaki, JP;
Atsushi Iwashita, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A radiation detection apparatus includes a pixel array including pixels each including a conversion element and a switch element, an acquisition unit configured to acquire a first signal generated in the pixel array while at least one switch element of the pixels is in a conductive state, and a second signal generated in the pixel array while the switch elements are in a non-conductive state, an evaluation value determination unit configured to determine, based on the first signal, an evaluation value having a correlation with a radiation dose, a threshold value determination unit configured to determine a threshold value based not on the evaluation value but on the second signal, and a determination unit configured to determine, based on comparison between the evaluation value and the threshold value, whether the pixel array is being irradiated with radiation.