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. 10, 2026
Filed:
Aug. 31, 2021
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
In a light detection device and a distance measuring system that obtain a distance from a round-trip time of light, a distance measurement error is reduced while a dead time is shortened. A logic gate outputs an output signal on the basis of a result of comparison between an input voltage depending on a voltage of one terminal of the cathode or the anode of an avalanche photodiode and a predetermined threshold voltage. A voltage limiting transistor limits the input voltage. A rapid charging transistor, in which a film thickness of a gate oxide film is less than that of the voltage limiting transistor, supplies a charging current to the avalanche photodiode in accordance with a predetermined pulse signal. A pulse generation unit generates the pulse signal on the basis of the output signal and supplies the pulse signal to the rapid charging transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile