Digital contents distribution system, digital contents distribution method, roaming server, information processor, and information processing method
US7177841B2 · kind B2 · utility
6Cited by
7References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Aug 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital contents distribution system including a client, a digital contents server, a roaming server, and a network connected between these terminals. The roaming server includes a receiving section for receiving from the digital contents server a digital content with an intellectual property right protection system protecting the digital content, and a section for converting the intellectual property right protection system of the received digital content into another kind of intellectual property right protection system, and a section for delivering the converted system to the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.