Data transfer device
US7934105B1 · kind B1 · utility
13Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2006 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/916
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data transfer device for storing data to a removable data storage item, wherein data are received as records and encrypted by the data transfer device prior to storage. The data transfer device encrypts a first portion of the records using a first encryption key and a second portion of the records using a second encryption key. The encrypted records are then stored to the removable data storage item as a plurality of data blocks, each data block comprising one or more encrypted records, wherein records in a respective data block are encrypted using only a respective one of the encryption keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.