System and method for dynamically establishing extended display identification data
First Claim
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1. A method for establishing what format video is received from a source of video, comprising:
- dynamically establishing at least one parameter associated with a user-preferred format in at least one memory of a video display system;
communicating at least the parameter to the source to cause the source to send video to the display system in the desired format; and
allowing a user to select one parameter from a group of parameters, wherein the parameter selected by the user is indicated at least in part by block 0 of an extended display information data (EDID) embodied in an electrically erasable programmable read-only memory (EEPROM) associated with the video display system.
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Abstract
Preferred format parameters including timing that is contained in an extended display information data (EDID) EEPROM in a digital video display system can be dynamically established by a user. In this way, when the video display system engages a source of video in a “plug and play” context, instead of communicating to the source what formats are supported and then accepting a format selected by the source, the preferred format is sent from the EEPROM to the source so that the video display system receives video from the source in the user-desired format.
31 Citations
15 Claims
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1. A method for establishing what format video is received from a source of video, comprising:
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dynamically establishing at least one parameter associated with a user-preferred format in at least one memory of a video display system; communicating at least the parameter to the source to cause the source to send video to the display system in the desired format; and allowing a user to select one parameter from a group of parameters, wherein the parameter selected by the user is indicated at least in part by block 0 of an extended display information data (EDID) embodied in an electrically erasable programmable read-only memory (EEPROM) associated with the video display system. - View Dependent Claims (2, 3, 4)
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5. A video display system including at least one processor and at least one format information storage apparatus, the processor executing logic comprising:
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presenting, to a user, a visual display; permitting the user to use the visual display to define a preferred video format; and programming the information storage apparatus such that the information storage apparatus can indicate to a source of video the preferred video format such that the source sends video to the display system in the preferred video format, a checksum associated with the preferred video format being dynamically established to reflect the parameter selected by the user. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A video display source, comprising:
at least one processor receiving information from a video display system, the information including at least one parameter established in response to a user selecting a preferred display format, the processor causing the source to send video data to the video display system only in the user-preferred display format in response to the parameter, a user being allowed to select one parameter from a group of parameters, wherein the processor automatically accesses block 0 of extended display information data (EDTD) in an EEPROM of the display system, block 0 pointing to a first descriptor block in block 1 of the EDID, the first descriptor block associated with at least one bit indicating a video display parameter that has been designated as being preferred by a user. - View Dependent Claims (12, 13, 14, 15)
Specification