Information recording medium drive device, information processing apparatus, data replay control system, data replay control method, and computer program
US7433488B2 · kind B2 · utility
2Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A content, restored in an information processing apparatus, for replaying a content, such as a personal computer, is fed back to a drive device. The drive device detects an electronic watermark from the transferred restored content, and controls content outputting from the drive device. In this arrangement, an electronic watermark is reliably detected and content replay control is performed based on the detected electronic watermark in any type of coding including MPEG 2, MPEG-1, MPEG-4 regardless of type of coding or even if the content is encrypted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.