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. 08, 2026
Filed:
May. 14, 2021
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Yasunori Tsukuda, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
There is provided a photodetection circuit and a distance measuring device. The photodetection circuit includes an avalanche photodiode, a charging circuit that supplies a voltage to the avalanche photodiode, and an input amplifier including a comparison circuit in which a voltage level of an output terminal changes according to a comparison result between a voltage of an input terminal connected to the avalanche photodiode and a reference voltage, and a voltage control circuit that changes a potential of the reference voltage. The photodetection circuit additionally includes a state detecting circuit that sets timing for causing the voltage control circuit to change the potential of the reference voltage on the basis of a detection result of the voltage level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile