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. 16, 2012
Filed:
Aug. 23, 2010
Chien-fu Tseng, Yunlin County, TW;
Kuo-hsin Lai, Hsinchu County, TW;
Chien-Fu Tseng, Yunlin County, TW;
Kuo-Hsin Lai, Hsinchu County, TW;
Phison Electronics Corp., Miaoli, TW;
Abstract
A data reading method for a flash memory module is provided. The method includes applying a bit-data-read voltage to get read data from memory cells of the flash memory module. The method also includes setting a minus-adjustment-bit-data-read voltage and a plus-adjustment-bit-data-read voltage corresponding to the bit-data-read voltage based on an error-distribution estimated value and applying the minus-adjustment-bit-data-read voltage and the plus-adjustment-bit-data-read voltage to obtain soft values corresponding to the read data from the memory cells. The method further includes calculating a soft-information estimated value corresponding to each bit of the read data according to the soft-values. Accordingly, the method can effectively obtain soft information.