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:
May. 20, 2025
Filed:
Dec. 19, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Masato Ofuji, Gunma, JP;
Katsuro Takenaka, Saitama, JP;
Masao Ina, Kanagawa, JP;
Takamasa Ishii, Saitama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of operating a radiation imaging apparatus including a sensor substrate which includes a plurality of pixels arranged in a matrix, each pixel including a conversion element configured to convert radiation or light into an electric charge and accumulate the electric charge and a switch element. The method includes, supplying a first driving potential to set the switch element in a non-conductive state, changing a bias potential supplied to a second terminal of the conversion element to remain a charge in the conversion element, supplying a second driving potential to the switch element to readout a remaining charge, and calculating a threshold voltage of the switch element based on the remaining charge.