Non-volatile memory system with compression and encryption of data
US9152554B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/402
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory system includes a non-volatile memory, a compressor capable of compressing data, an encryptor which encrypts data, a decryptor which decrypts data, and a data flow controller. The data flow controller is configured to perform first and second processes. In the first process, the data flow controller causes the encryptor to encrypt user data received from a host in a non-compressed state, and causes the encrypted user data to be written into the non-volatile memory via the second area. In the second process, the data flow controller causes the encrypted user data to be read out from the non-volatile memory, causes the decryptor to decrypt the encrypted user data, causes the compressor to compress the decrypted user data, causes the encryptor to encrypt the compressed user data, and causes the encrypted and compressed user data to be written into the non-volatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.