Multistream switch-based video editing architecture
US6198477A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Apr 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/034
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An architecture for performing real-time image processing on multiple image data streams using compressed or uncompressed image data includes a switch for forwarding data from multiple input sources to multiple destinations on a video processing device. The video processing device includes two independent processing pipelines for processing two different data streams. The switch may couple one or both input data stream to be multiple different destinations. Multiple video processing devices may be coupled via the switch to increase the number of data streams capable of being processed at any given time. Mixers are coupled in a cascaded fashion using the switch, thereby providing selective keying capability and allowing for multiple keying events to be entered during one phase of processing. Each of the processing pipelines on the video processing device includes dedicated processing logic, compression logic and frame buffer storage. Logic is provided with each frame buffer to support motion effects. By providing two distinct processing pipelines, greater control may be achieved for production of an output image. The architecture may be easily augmented to include a datapath for pro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.