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:
Oct. 14, 2025
Filed:
Nov. 17, 2023
Rohm Co., Ltd., Kyoto, JP;
Ryosuke Kanemitsu, Kyoto, JP;
Koji Katsura, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An LED driving device includes: a plurality of LED terminals (LEDto LEDterminals) to have connected to them the cathodes of LEDs in a plurality of channels; a lowest voltage input terminal (MINSELIN); a lowest voltage output terminal (MINSELOUT); and a selector. When the lowest voltage input terminal is used, the selector selects the lowest among the voltages at the plurality of LED terminals and the voltage at the lowest voltage input terminal, to output the lowest voltage from the lowest voltage output terminal; when the lowest voltage input terminal is not used, the selector selects the lowest among the voltages at the plurality of LED terminals, to output the lowest voltage from the lowest voltage output terminal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile