Systems and methods for finding a last good page in NAND open block
US11126368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1668
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for finding a last good page in a memory system includes determining a first number of write operations in a first queue at a first page in a memory block of the memory system. The method also includes determining whether the first number of write operations in the first queue is above a threshold. The method also includes based on a determination that the first number of write operations in the first queue is above the threshold, determining whether a second page in the memory block is empty. The method also includes identifying, based on a determination that the second page is empty, the last good page in the memory block using a binary search between the first page and the second page.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.