Method and apparatus for receiving digital video signals
US8024767B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4334
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for storing a compressed video stream or an uncompressed video stream is disclosed. The uncompressed video stream may be ZOOM VIDEO data. The compressed video stream may be a TRANSPORT STREAM data from a High Definition Television (HDTV) broadcast. A video graphics adapter is configured to properly receive one of the two types of video data. The received data and control signals are monitored to provide a second set of control of data signal which are used by a packer and an window control to provide data of a predetermined width and control to an address generator. The data is buffered within a graphics memory such as a frame buffer. The graphics memory can be written to system memory when full, or accessed by the system memory controller during the fill operation if a multi-ported memory is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.