Simultaneously displaying a graphic image and video image
US6359657B1 · kind B1 · utility
18Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1997 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | May 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/641
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and arrangement for simultaneously displaying a graphic image (23) (e.g., a control menu of a television receiver or video recorder) and a video image (22). In order to achieve optimal legibility of the menu without fully obscuring the underlying video signal, the graphic image is accommodated within a window (21) and the window is given an adequate color (24) which is additively mixed with the video signal. The mixing factor is preferably controlled in response to the amount of spatial and/or temporal activity of the video signal within the window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.