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:
Mar. 22, 2022
Filed:
Jun. 06, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An imaging device includes a pixel circuit configured to generate an analog signal; an amplification circuit including a feedback capacitor and its reset switching element; a sample and hold circuit for the amplified analog signal; an A/D conversion circuit for the analog signal held in the sample and hold circuit; a memory circuit configured to store the digital signal; a reading circuit configured to read the digital signal stored in the memory circuit; and a control circuit configured to perform a rise and a fall of the control signal such that the rise and the fall do not overlap a conversion period of the analog signal by the A/D conversion circuit and do not overlap a reading period of the digital signal by the reading circuit, when the switching element is off during a sampling period of the analog signal.