Flash memory compression
US9927998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and method for reading compressed data from non-volatile storage such as an SSD device are disclosed. A logical section, e.g. page, of data includes a plurality of data blocks that are compressed such that the lengths thereof are different. A header section of the page stores headers for the data blocks and storing a length for each data block. The header section may be a codeword encoding the headers according to an error correction scheme. To read out a data block a hardware decoder requests reading of the page and transfers the header section into a hardware decoder that decodes the headers to obtain an offset for a desired data block. Without instructing reading of the page, the offset is used by the hardware decoder to request transfer of the desired data block that is then decoded and returned to a requesting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.