Information processing apparatus, information recording medium, apparatus and method of manufacturing information recording medium, and computer program
US7979709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information processing apparatus is provided. The information processing apparatus includes content verification means for executing a verification processing of a recording content recorded on an information recording medium, and content play means for executing a content play processing on a condition that validity of the recording content is checked on the basis of the verification processing. The content verification means acquires from the information recording medium a content hash table having registered therein hash values generated on the basis of legal recording content data and executes a processing for verifying a presence or absence of an illegal recording content whose hash value is not registered in the content hash table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.