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:
Apr. 05, 2011
Filed:
Sep. 11, 2008
Ming-dar Chen, Hsinchu, TW;
Chuan-sheng Lin, Jhubei, TW;
Hsiang-an Hsieh, Sijhih, TW;
A-Data Technology Co., Ltd., Taipei, TW;
Abstract
A flash controller performs a data correction function while executing a copy back procedure for a flash memory, and the flash memory includes at least one memory unit and a page buffer. The flash controller contains: a transmission buffer, an error correction unit, a correction information register, and a microprocessor. The microprocessor reads out a data from, the page buffer and stores the data into the transmission buffer after producing a read instruction of page copy to the flash memory. The microprocessor controls the error correction unit to check and correct the data in the transmission buffer and calculate a check result. The microprocessor produces a different program command to record the corrected data into the memory unit according to the data error quantity of the check result. Thereby, the present invention can achieve the purpose of improving the flash controller in reliability and access efficiency.