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:
Aug. 30, 2011
Filed:
Dec. 27, 2007
Jen-wei Hsieh, Taipei, TW;
Tei-wei Kuo, Taipei, TW;
Hsiang-chi Hsieh, Sindian, TW;
Genesys Logic, Inc., Taipei, TW;
Abstract
A method of facilitating reliably accessing flash memory is provided. During the write-in process, the present invention utilizes the steps of coding write-in data to generate extra data, and then generating the first error correction code by performing an error-correcting operation on the write-in data and the extra data. Finally, store the N write-in data and the generated K extra data into the data area and the first ECC into the spare area. During read process, the present invention utilizes the steps of reading data from the data area of the target flash-memory page to generate the second ECC, counting with the counter a number of bit differences between the first ECC and the second ECC, and selecting M data from the N write-in data and the K extra data as decoding factors to retrieve the N write-in data. The higher the counter values, the lower the likelihood the corresponding bit is selected to be retrieved.