System and method for conveying session information for use in forensic watermarking
US9641877B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for providing content session information using a content manager, streaming server, and one or more watermarking devices are disclosed. A content asset is also disclosed. The content asset may include content. In addition, the content asset may include a content data field having forensic watermark information, e.g. session or identifying information. In one aspect, the content asset is compressed and the compressed content asset has one or more pre-processed candidate watermark locations. In this aspect, the forensic watermark information may be extracted, e.g. by a watermarking device, from the content data field and included in the one or more pre-processed candidate watermark locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.