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:
Jun. 03, 2025
Filed:
Feb. 01, 2022
Sony Group Corporation, Tokyo, JP;
Hisao Sakurai, Tokyo, JP;
SONY GROUP CORPORATION, Tokyo, JP;
Abstract
The present disclosure relates to a drive control device, a drive control method, an information processing system, and an information processing method for an information processing system capable of suppressing generation of an abnormal sound in a passive-matrix driven LED display device. A blanking interval between frames is made shorter than a time set according to a display standard, and the blanking interval ends before a ripple voltage rises. Accordingly, suppressing a rise in the ripple voltage caused by a reduction in current flow through LEDs during the blanking interval lowers a voltage applied to an MLCC, and suppressing distortion of a substrate resulting from expansion or contraction of the MLCC caused by the voltage application suppresses generation of an abnormal sound. This disclosure is applicable to a passive-matrix driven LED display device.