Methods and systems for detecting video signals and sources
First Claim
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1. A method for detecting a video signal, comprising:
- maintaining a list of recently utilized ports, wherein the recently utilized ports are arranged sequentially in the list based on a most recently utilized port;
evaluating each of the recently utilized ports to determine if a source is coupled to one of the recently utilized ports;
evaluating other ports not contained in the list if none of the recently utilized ports is coupled to the source; and
updating the list if the recently utilized ports or the other ports is determined to be coupled to the source.
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Abstract
A list of most recently utilized ports is maintained in memory. The video display system checks each port in the recently utilized ports list to determine if any video sources are connected to the recently utilized ports. If no sources are connected to the recently utilized ports, the video display system sequentially checks the remaining ports not stored in the list.
208 Citations
20 Claims
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1. A method for detecting a video signal, comprising:
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maintaining a list of recently utilized ports, wherein the recently utilized ports are arranged sequentially in the list based on a most recently utilized port;
evaluating each of the recently utilized ports to determine if a source is coupled to one of the recently utilized ports;
evaluating other ports not contained in the list if none of the recently utilized ports is coupled to the source; and
updating the list if the recently utilized ports or the other ports is determined to be coupled to the source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A video device, comprising:
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a video display device display video;
ports coupled to the video display device for receiving signals including video signals;
memory for maintaining a list of recently utilized ports, wherein the recently utilized ports are arranged sequentially in the list based on a most recently utilized; and
logic for evaluating each of the recently utilized ports to determine if a source is coupled to one of the recently utilized ports, evaluating other ports not in the list if none of the recently utilized ports is coupled to the source, and updating the list if the recently utilized ports or the other ports is determined to be coupled to the source. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A video device, comprising:
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means for displaying video;
means for receiving signals including video signals;
means for maintaining a list of recently utilized ports, wherein the recently utilized ports are arranged sequentially in the list based on a most recently utilized means for evaluating each of the recently utilized ports to determine if a source is coupled to one of the recently utilized ports;
means for evaluating other ports not in the list if none of the recently utilized ports is coupled to the source; and
means for updating the list if the recently utilized ports or the other ports is determined to be coupled to the source. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification