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. 11, 2025
Filed:
Jun. 07, 2021
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Masako Hasegawa, Kanagawa, JP;
Parit Kanjanavirojkul, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
A photodetection device of the present disclosure includes: multiple AD converters provided for respective pixel columns of multiple pixels and performing AD conversion on a pixel signal based on a second output signal, and including a comparison circuit, which includes a first-stage amplifier circuit outputting a first output signal corresponding to a comparison operation based on the pixel signal and a reference signal, and a second-stage amplifier circuit coupled to the first-stage amplifier circuit and outputting the second output signal corresponding to the first output signal; multiple clamp circuits provided for the comparison circuit of each of the AD converters, and each including a switch controlled on and off based on a clamp control signal, in which the clamp circuits selectively clamp a voltage of the second output signal by turning on the switch; and a control signal generator generating the clamp control signal for each of the clamp circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile