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. 15, 2026
Filed:
Jun. 12, 2020
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
Provided is a laser drive device including a drive circuit that drives a light emitting element by a vertical cavity surface emitting laser to emit light on the basis of a drive control signal, an assist circuit that short-circuits both ends of the light emitting element on the basis of an assist control signal to speed up a fall time of the light emitting element, a timing adjustment unit that performs mutual timing adjustment between the drive control signal and the assist control signal on the basis of a timing adjustment signal, a phase detection unit that detects a phase difference between the drive control signal and the assist control signal, and a timing control unit that generates the timing adjustment signal on the basis of a phase difference detection result of the phase detection unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile