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:
Apr. 16, 2024
Filed:
Mar. 25, 2019
Sony Corporation, Tokyo, JP;
Toshiki Udagawa, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
[Object] To provide a technology capable of appropriately determining whether overcurrent has flowed in a light emitting element even in a case where the light emitting element is driven by the pulse driving method. [Solving Means] An overcurrent determination circuit according to the present technology includes: a sample-and-hold circuit that obtains a driving current value of a light emitting element in accordance with a timing of a light emitting interval of the light emitting element that emits pulsed light; and a comparator circuit that compares the obtained driving current value with a value of a predetermined determination level and determines whether overcurrent has flowed in the light emitting element.