Method and system for digital watermarking
US7007166B1 · kind B1 · utility
198Cited by
37References
65Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 7, 2000 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for applying a digital watermark to a content signal is disclosed. In accordance with such a method, a watermarking key is identified. The watermarking key includes a binary sequence and information describing application of that binary sequence to the content signal. The digital watermark is then encoded within the content signal at one or more locations determined by the watermarking key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.