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:
Jan. 25, 2022
Filed:
Mar. 10, 2021
Tianma Japan, Ltd., Kanagawa, JP;
Hiroyuki Sekine, Kanagawa, JP;
TIANMA JAPAN, LTD., Kanagawa, JP;
Abstract
An image sensor includes a pixel and a control circuit to detect the optical signal transmitted by a signal line. The pixel includes a photodetector, an amplifier circuit configured to amplify an optical signal from the photodetector, and a first switch configured to control whether to output the optical signal from the pixel to the signal line. The control circuit includes a first capacitor connected with the signal line and an integrator connected with the signal line via the first capacitor. The control circuit is configured to successively supply a first potential and a second potential different from each other to the signal line in a state where the first switch is non-conductive, and measure an amplification rate determined by the first capacitor and the integrator based on outputs of the integrator when the first potential is supplied and the second potential is supplied.