Information processing device, data processing method, and program
US8549620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2009 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1011
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information processing device includes: a local memory unit for storing data including an encrypted content; a memory for storing data including key information used to reproduce the encrypted content; and a data processing unit performing a process of writing data to the local memory unit and the memory, and a process of reproducing the encrypted content, wherein the data processing unit performs a process of writing encrypted content downloaded from a server or encrypted content copied from a medium to the local memory unit, and performs a process of decoding the encrypted content or a validity authenticating process using the data stored in the local memory unit and the data stored in the memory when reproducing the encrypted content written to the local memory unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.