Method and system for digital watermarking
US5905800A · kind A · utility
528Cited by
25References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1998 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldComputer 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.