Optical content modulation for visual copyright protection
US7346185B2 · kind B2 · utility
4Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2007 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Apr 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91392
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A visual copyright protection system is disclosed, including input content, a disruption processor, and output content. The disruption processor inserts disruptive content to the input content creating output content that impedes the ability of optical recording devices to make useful copies of output content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.