Generating signatures over a document
US7434058B2 · kind B2 · utility
63Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Apr 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6272
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document accessible over a network can be registered. A registered document, and the content contained therein, cannot be transmitted undetected over and off of the network. In one embodiment, the invention includes maintaining a plurality of stored signatures over a registered document. In one embodiment, the plurality of stored signatures are generated by extracting content from the document, normalizing the extracted content, and generating the plurality of signatures using the normalized content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.