Method for transmitting content with copy control information, content identification information and content status information
US8194519B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Nov 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A content transmitting apparatus and the like which execute copy control of content more securely than conventional, and can count copy number correctly according to the situation, even in the case where content transfer is interrupted are provided. The content reproducing apparatus 10 for transmitting content that is digital copyrighted work including a plurality of content blocks comprises: the content reproducing unit 11 which reads out content and the like from the DVD 30; the control unit 12 which repeats, for each of the plurality of content blocks, transmitting in parallel with the content blocks, the copy control information indicating copy permission of the content, the content identification information identifying content, and the content status information indicating status of the content blocks in the overall content; the data building unit 15; the transmission unit 16; and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.