Request linked digital watermarking
US8032755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2005 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for digitally signing information in real-time, based on a user request for the information. In one embodiment, the method is useful in a Web server, and can be implemented using a server-side API filter. One embodiment of the method includes receiving a data request from a user and determining whether the data requested should be marked. If the data should be marked, the method includes marking the data with a signature identifying at least one component of the user request; and storing information identifying the user with the request and the at least one component. Multiple types of marking techniques can be used on a single data file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.