Watermark extraction and content screening in a networked environment
US8838977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Aug 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/103
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, devices, and computer program products facilitate the application of a content use policy based on watermarks that are embedded in a content. Watermark extraction and content screening operations, which can include the application of content usage enforcement actions, may be organized such that some or all of the operations can be conducted at different times by different devices. The watermark extraction results can be stored in a secure location and accessed by other devices at different times. These operations can be conducted by one or more trusted devices that reside in a home network. The home network can also include a gateway device that can coordinate the operations of the various network devices and/or delegate the various watermark extraction and content screening operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.