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. 17, 2024
Filed:
Feb. 24, 2021
Nippon Seiki Co., Ltd., Niigata, JP;
Sayaka Mizuno, Niigata, JP;
Nippon Seiki Co., Ltd., Niigata, JP;
Abstract
A projector device includes: a storage unit storing lighting pattern information indicating the lighting start timing of an LED and the time sequence of a lighting continuation period from the lighting start timing; a drive control unit that causes the LED to light on the basis of the lighting pattern information; and a voltage measurement unit. The voltage measurement unit refers to the lighting pattern information and determines, for a target period, a lighting continuation period that is longer than a preset set period. The voltage measurement unit measures the forward voltage within the determined target period from the start of the period until a timing after the set period has elapsed.