Patent ID: 7409623
Filing Date: 2008-08-05
Classification: G06F

Abstract:
1. A method of reading a portion of a non-volatile computer memory, the method comprising: reading a first portion of a redundant memory area of a data sector of a non-volatile computer memory, the first portion of the redundant memory area including data associated with the data sector; wherein the first portion of the redundant memory area includes a cyclic redundancy check code; evaluating the cyclic redundancy check code to detect a memory error with respect to the first portion, wherein an overwrite flags include a block status flag, a page status flag and an update status flag in the redundant memory area is checked by the cyclic redundancy check code; reading a second portion of the redundant memory area in response to detection of the memory error; and wherein the non-volatile computer memory comprises a multi-level cell flash memory device.