Method and system for copyright protection of digital images
US7281272B1 · kind B1 · utility
87Cited by
75References
74Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1999 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Dec 13, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99945
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for protecting digital images copied from a video RAM, including the steps of transmitting stored pixel data from a computer memory to a video RAM, identifying protected pixel data within the stored pixel data, modifying the stored pixel data, thereby generating modified pixel data within which individual pixel datum is recognizable as being protected or unprotected, and, in response to pixel data being copied from the video RAM, replacing individual pixel datum copied from the video RAM, that is protected, with substitute pixel datum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.