RECOGNIZING MULTIPLE INPUT POINT GESTURES
First Claim
1. At a computer system including a processor and system memory, a method for recognizing a multiple input point gesture, the method comprising:
- an act of receiving a sequenced order of point locations, the sequenced order of point locations indicating contact at a first location on an input surface, followed by simultaneous contact at the first location and a second location on the input surface, followed by simultaneous contact at the first location, the second location, and a third location on the input surface;
an act of calculating a line segment between the first location and the second location;
an act of determining that the third location is on a specified side of the line segment; and
an act of the processor recognizing an input gesture represented by the sequenced order of point locations based at least on the determination that the third location is on the specified side of the line segment.
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Accused Products
Abstract
The present invention extends to methods, systems, and computer program products for recognizing multiple input point gestures. A recognition module receives an ordered set of points indicating that contacts have been detected in a specified order at multiple different locations on a multi-touch input surface. The recognition module determines the position of subsequently detected locations (e.g., third detected location) relative to (e.g., to the left of right of) line segments connecting previously detected locations (e.g., connecting first and second detected locations). The gesture module also detects whether line segments connecting subsequently detected locations (e.g., connecting third and fourth detected locations) intersect line segments connecting previously detected locations (e.g., connecting first and second detected locations). The gesture module recognizes an input gesture based on the relative positions and whether or not line segments intersect. The gesture module then identifies a corresponding input operation (e.g., cut, paste, etc.) to be performed.
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Citations
20 Claims
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1. At a computer system including a processor and system memory, a method for recognizing a multiple input point gesture, the method comprising:
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an act of receiving a sequenced order of point locations, the sequenced order of point locations indicating contact at a first location on an input surface, followed by simultaneous contact at the first location and a second location on the input surface, followed by simultaneous contact at the first location, the second location, and a third location on the input surface; an act of calculating a line segment between the first location and the second location; an act of determining that the third location is on a specified side of the line segment; and an act of the processor recognizing an input gesture represented by the sequenced order of point locations based at least on the determination that the third location is on the specified side of the line segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A computer program product for use at a computer system including an input surface, the computer program product for implementing a method for recognizing a multiple input point gesture on the input surface, the computer program product comprising one or more computer storage media having stored thereon computer-executable instructions that, when executed at a processor, cause the computer system to perform the method, including the following:
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receive a sequenced order of point locations, the sequenced order of point locations indicating contact at a first location on the input surface, followed by simultaneous contact at the first location and a second location on the input surface, followed by simultaneous contact at the first location, the second location, and a third location on the input surface; calculate a line segment between the first location and the second location; determine that the third location is on a specified side of the line segment; and recognize an input gesture represented by the sequenced order of point locations based at least on the determination that the third location is on the specified side of the line segment. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A computer system, the computer system comprising:
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one or more processors; system memory; an input surface; and one or more computer storage media having stored thereon computer-executable instructions representing a gesture recognition module, the gesture recognition module configured to; receive a sequenced order of point locations, the sequenced order of point locations indicating contact at a first location on the input surface, followed by simultaneous contact at the first location and a second location on the input surface, followed by simultaneous contact at the first location, the second location, and a third location on the input surface; calculate a line segment between the first location and the second location; determine that the third location is on a specified side of the line segment; and recognize an input gesture represented by the sequenced order of point locations based at least on the determination that the third location is on the specified side of the line segment.
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Specification