Built in on-chip data scrambler for non-volatile memory
US8145855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Dec 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1032
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-volatile memory in which data is randomized before being stored in the non-volatile memory to minimize data pattern-related read failures. Randomizing is performed using circuitry on the memory die so that the memory die is portable relative to an external, off-chip controller. Circuitry on the memory die scrambles user data based on a key which is generated using a seed which is shifted according to a write address. Corresponding on-chip descrambling is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.