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. 04, 2013
Filed:
Apr. 14, 2010
Chi-wei Peng, Hsinchu County, TW;
Chien-chung Wu, Kaohsiung, TW;
Hong-ching Chen, Kao-Hsiung Hsien, TW;
Chi-Wei Peng, Hsinchu County, TW;
Chien-Chung Wu, Kaohsiung, TW;
Hong-Ching Chen, Kao-Hsiung Hsien, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
The invention provides a method for performing copy back operations. First, a copy back command is sent to a flash memory for reading a first error correction code (ECC) data from a first address. The first ECC data is then received from the flash memory. The first ECC data is then decoded without performing error correction to calculate a fail count of the first ECC data. The fail count is then compared with a first threshold value. When the fail count is less than the first threshold value, a first program command is sent to the flash memory for storing the first ECC data to a second address of the flash memory. When the fail count is less than the first threshold value, the first ECC data is not sent back to the flash memory.