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:
Jan. 24, 2023
Filed:
Jan. 24, 2020
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Hiroyuki Shoubu, Kanagawa, JP;
Hayato Kamizuru, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
To detect a malfunction of a light-emission driving unit that drives a light emitting element in a light-emission driving device. A malfunction detection device is provided to the light-emission driving device including the light-emission driving unit that supplies a light-emission current for causing the light emitting element to emit light during a light-emission period during which the light emitting element is caused to emit light. The malfunction detection device provided to this light-emission driving device detects, on the basis of a voltage of an output terminal, a malfunction of the light-emission driving unit, the output terminal being a terminal in the light-emission driving unit that supplies the light-emission current for causing the light emitting element to emit light during the light-emission period, the terminal supplying the light-emission current.