TOUCHSCREEN DEVICE AND METHOD OF SENSING TOUCH
First Claim
Patent Images
1. A method of sensing a touch, the method comprising:
- calculating valid data values from a panel unit;
setting a boundary box around valid data values greater than a predetermined first absolute value among the calculated valid data values;
creating positive and negative projection masks for valid data values greater than a predetermined second absolute value among the valid data values within the boundary box; and
removing the valid data values within the boundary box based on levels of bit masks of the positive and negative projection masks.
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Abstract
There are provided a touchscreen device and a method of sensing a touch. The method of sensing a touch may include: calculating valid data values from a panel unit; setting a boundary box around valid data values greater than a predetermined first absolute value among the calculated valid data values; creating positive and negative projection masks for valid data values greater than a second predetermined absolute value among the valid data values within the boundary box; and removing the valid data values within the boundary box based on levels of bit masks of the positive and negative projection masks.
4 Citations
20 Claims
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1. A method of sensing a touch, the method comprising:
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calculating valid data values from a panel unit; setting a boundary box around valid data values greater than a predetermined first absolute value among the calculated valid data values; creating positive and negative projection masks for valid data values greater than a predetermined second absolute value among the valid data values within the boundary box; and removing the valid data values within the boundary box based on levels of bit masks of the positive and negative projection masks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touchscreen device, comprising:
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a panel unit including rows of first electrodes extending a first direction and columns of second electrodes extending a second direction intersecting the first direction; a sensing circuit unit detecting capacitance formed at intersections of the first electrodes and the second electrodes; a signal conversion unit converting the capacitance into digital sensing data; and an operation unit calculating valid data values from the sensing data, setting a boundary box around valid data values greater than a predetermined first absolute value among the calculated valid data values, and creating positive and negative projection masks including bit masks by projecting the valid data values within the boundary box at least one of first and second directions, the operation unit removing the valid data values within the boundary box based on levels of bit masks of the positive and negative projection masks. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification