Programmable digital video processing system
US5227863A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1990 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Aug 7, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Programmable apparatus for digital processing of video signals from multiple sources converted to digital format to provide real-time multiple simultaneous special video effects and suitable for direct interface to a conventional microcomputer bus such as an Apple Macintosh II NuBus. The apparatus includes a matrix of multipliers to do real-time video processing permitting special effects such as fading between at least two video image sources, as well as a priority resolver to control display on a pixel by pixel basis of more than ten sources based upon dynamically programmable priority. In addition, a programmable multiple range thresholder, a hardware window generator capable of generating multiple simultaneous windows, a color look up table and optional image capture capabilities are provided. The apparatus also provides for a light pen input, genlocking and a range of special video effects including zooming, mosaicing, panning and blending.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.