Method for acquiring extended display identification data (EDID) in a powered down EDID compliant display controller
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United States of America Patent
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Mar 22, 2011
Grant Date -
Apr 20, 2006
app pub date -
Feb 18, 2005
filing date -
Oct 18, 2004
priority date (Note) -
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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.
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