Data Storage Device and Flash Memory Control Method
First Claim
Patent Images
1. A data storage device, comprising:
- a flash memory, providing a storage space that is divided into a plurality of physical blocks with each physical block further divided into a plurality of physical pages; and
a control unit, comprising a microcontroller and coupled between a host and the flash memory,wherein;
the microcontroller is configured to duplicate a last write page of a run-time write block between the plurality of physical blocks during a power recovery process and thereby generate a duplicated page in the run-time write block to replace the last write page for reliability enhancement.
1 Assignment
0 Petitions
Accused Products
Abstract
A flash memory control technology with high reliability. In a power recovery process, a microcontroller is configured to duplicate a last write page of a run-time write block of a flash memory and thereby generate a duplicated page in the run-time write block to replace the last write page for reliability enhancement.
19 Citations
18 Claims
-
1. A data storage device, comprising:
-
a flash memory, providing a storage space that is divided into a plurality of physical blocks with each physical block further divided into a plurality of physical pages; and a control unit, comprising a microcontroller and coupled between a host and the flash memory, wherein; the microcontroller is configured to duplicate a last write page of a run-time write block between the plurality of physical blocks during a power recovery process and thereby generate a duplicated page in the run-time write block to replace the last write page for reliability enhancement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A flash memory control method, comprising:
-
duplicating a last write page of a run-time write block between a plurality of physical blocks of a flash memory during a power recovery process and thereby generate a duplicated page in the run-time write block; and replacing the last write page by the duplicated page for reliability enhancement. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification