Data recording medium, data recording method, data processing device, data distribution method, data distribution device, data transmission method, data transmission device, data distribution system, and data communication system
US7496965B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Jun 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
On a CD-R, a UID that is unique identification information is pre-recorded. When the CD-R is loaded into an information terminal unit, the UID is read and transmitted to a management server through the Internet. The management server determines whether predetermined data can be recorded onto the CD-R in accordance with the received UID. For example, when the UID is valid, contents data is downloaded from the management server to the information terminal unit and recorded onto the CD-R. In addition, for example, when the UID is valid, a notification that represents that contents data is permitted to be copied or moved is transmitted from the management server to the information terminal unit. As a result, contents data recorded on another recording medium can be copied or moved to the CD-R.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.