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:
Sep. 16, 2025
Filed:
Mar. 29, 2022
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
[Problem] An excessive amount of light received by an image sensor is detected with high accuracy without increasing the circuit scale. [Solution] An imaging apparatus includes a pixel, unit including a photoelectric conversion element and a first transistor that outputs a signal photoelectrically converted by the photoelectric conversion element to a signal line; and an excessive light amount detection circuit that detects that the photoelectric conversion element receives an excessive amount of light. The excessive light amount detection circuit includes a second transistor and a capacitor that are connected in series between the signal line and a reference potential node; and a dummy circuit that adjusts a gate voltage of the second transistor in consideration of at least one of fluctuations in a voltage level of a power supply voltage, a parasitic resistance of the signal line, and variations in a threshold voltage of the first transistor.