Data access method capable of reducing the number of erasing to flash memory and data patch and access device using the same
US6256232A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0246
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data access method capable of reducing the number of erasing to flash memory and a data patch and access device that utilizes the method are disclosed. A data write procedure is provided for determining a difference between data to be written and existed data in the data block when writing data to a data block of the flash memory, and if the difference is less than a pre-determined value, writing the difference to a patch area instead of writing the data to the data block. A data read procedure is provided for searching the difference recorded in the patch area when reading data from a data block of the flash memory, so as to patch the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.