Information processing apparatus
US7516329B2 · kind B2 · utility
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12References
19Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 25, 2002 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | May 28, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99939
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information processing apparatus that enables management of copyrighted content to which identification information is not added. An arithmetical unit computes a hash value based on data from a portion of the content data recorded in a mini-disk (MD), and transmits the value from an input/output unit to a personal computer. Based on the hash value, the personal computer identifies the content recorded in the MD, and performs management procedures based on the display information of check-in and checkout of the content. The information processing apparatus can also be applied to personal computers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.