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. 07, 2025
Filed:
Jun. 25, 2024
Silicon Motion, Inc., Hsinchu County, TW;
Tzu-Yi Yang, Hsinchu County, TW;
Silicon Motion, Inc., Hsinchu County, TW;
Abstract
The present invention provides a control method of a flash memory controller. The control method includes: after the flash memory controller is powered on, determining whether the flash memory controller encountered an abnormal power failure; if the flash memory controller encounters the abnormal power failure, determining a first block of a flash memory module having an open state; moving a portion of valid data within the first block to a specific block; setting the first block to have a close state; determining if a number of blank blocks within the flash memory module is less than a threshold value; and if the number of blank blocks within the flash memory module is less than the threshold value, selecting a second block having the close state and a lowest number of valid pages, and moving all valid data of the second block into the specific block.