Secure communication and real-time watermarking using mutating identifiers
US7376624B2 · kind B2 · utility
15Cited by
55References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2115
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A multiple party system for distributing content. In one embodiment, four parties are involved in the system: a consumer, a service provider, an authenticator, and a content provider. The distribution of content from the content provider to the consumer is carried out using a predefined protocol, mutating IDs, watermarks, and licenses. The authenticator controls the distribution of mutating IDs, verifies the identity of one or more participating parties, and provides tracking information for mapping service providers and consumers to particular, possibly watermarked, content items.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.