Method and apparatus for fetching pixel data from memory
US6919902B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A graphics controller for preparing data to be presented on a display through an interlaced scan is provided. The graphics controller includes a memory and a line buffer adapted to receive video data. Data arrangement circuitry in communication with the line buffer is included. The data arrangement circuitry is configured to process the received video data in order to store the received data in the memory as an even segment and a corresponding odd segment, the even segment associated with data from a line of an even field, the odd segment associated with data from a line of an odd field, the even segment and the corresponding odd segment defining a pixel of data. A single pipe buffer configured to retrieve the even segment and the corresponding odd segment in a single memory access to the memory is included. A system using the graphics controller and a method of storing and retrieving pixel data from memory are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.