Method and system for enhanced modulation of video signals
US8405772B2 · kind B2 · utility
3Cited by
74References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and system for signal modulation. A plurality of pixels are selected in a pattern such that a first pixel group of the plurality of pixels is unpaired with a second pixel group of the plurality of pixels throughout the pattern in a portion of a video signal. The intensity of the plurality of the pixels is altered at a constant magnitude in the portion of the video signal pursuant to the pattern in a substantially invisible way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.