Method and system for enhanced modulation of video signals
US7286188B2 · kind B2 · utility
11Cited by
37References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2006 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2026 |
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.