Method for acquiring extended display identification data (EDID) in a powered down EDID compliant display controller
US7911473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2005 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/047
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display controller coupled to a display device by way of a display interface and to a host device by way of a data port that includes a processor arranged to process executable instructions and associated data, a single memory device for storing the executable instructions and associated data and EDID corresponding to the display device, and a bridge portion coupling the single memory device to the host device by way of the data port, wherein the bridge portion is always in a powered on state thereby providing access to the single memory device by the host device even when the display controller is in a powered off state such as during a boot up process when the display controller is in the powered off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.