Method for palm touch identification in multi-touch digitizing systems
First Claim
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1. A method for classifying input to a multi-touch sensitive digitizer that is obtained from a body part as inputs invalid for user interaction and inputs valid for user interaction, the method comprising:
- identifying a plurality of discrete regions of input to a digitizer sensor;
determining spatial relation between at least two of the regions; and
classifying one of the at least two regions as either valid input region or invalid input region based on the spatial relation determined between the at least two regions.
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Abstract
A method for classifying input to a multi-touch sensitive digitizer that is obtained from a body part as inputs invalid for user interaction and inputs valid for user interaction comprises: identifying a plurality of discrete regions of input to a digitizer sensor; determining spatial relation between at least two of the regions; and classifying one of the at least two regions as either valid input region or invalid input region based on the spatial relation determined between the at least two regions.
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Citations
29 Claims
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1. A method for classifying input to a multi-touch sensitive digitizer that is obtained from a body part as inputs invalid for user interaction and inputs valid for user interaction, the method comprising:
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identifying a plurality of discrete regions of input to a digitizer sensor; determining spatial relation between at least two of the regions; and classifying one of the at least two regions as either valid input region or invalid input region based on the spatial relation determined between the at least two regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for classifying input to a multi-touch sensitive digitizer that is obtained from a body part as inputs invalid for user interaction, the method comprising:
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detecting a pattern of signal amplitudes from the conductive lines of the digitizer sensor, wherein the digitizer sensor includes two orthogonal sets of parallel conductive lines forming a plurality of junctions there between from which the input is received; identifying at least one region of input to a digitizer sensor based on the pattern of signal amplitudes; and classifying the at least one region as an invalid input region in response to the at least one region including amplitudes at junctions above a base-line amplitude junction. - View Dependent Claims (26, 27, 28, 29)
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Specification