Techniques for watermarking and distributing content
US7570641B2 · kind B2 · utility
3Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for watermarking and distributing are provided. Content is broken into frames, each frame includes a watermark. Resources request the content and each frame of each resource's acquired version of the content includes a watermark. The frames of each resource's acquired version of the content form unique watermark sequences or unique keys. Each watermark sequence or key is uniquely associated with a particular resource. Each resource is also provided one or more delivery plans for acquiring that resource's uniquely watermark and sequenced version of the content over the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.