DVD identification and managed copy authorization
US7747864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Apr 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A “managed copy” capability is provided that is both sanctioned and supervised by a service provider so that multimedia content distributed on optical media such as DVD can be copied and used by a client in a controlled manner. In an illustrative example, a content provider generates a fingerprint using heuristics and/or other data that uniquely identifies a multimedia release, like a feature film, as being authorized for copying according to defined usage rules. A managed copy service authorizes the client to make a copy of a source DVD if that source is found to match a stored fingerprint. An identification response, which may include encoding parameters and usage rules, provides confirmation to the client that content on the source DVD is authorized to be copied. The client copies content from the source to another medium in compliance with the identification response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.