Method and apparatus for aligning a digitizing panel with a display device
First Claim
1. A method for aligning a first coordinate system of a digitizing panel with a second coordinate system of a display device, comprising the steps of:
- displaying a plurality of reference points on the display device, each of said reference points having a Xref, Yref coordinate value;
determining a plurality of first Xr, Yr coordinate values from the digitizing panel which are indicative of a plurality of positions of an object positioned relative to said plurality of reference points;
determining a plurality of channel gain correction values from said plurality of first Xr, Yr coordinate values and said plurality of Xref, Yref coordinate values; and
storing said plurality of channel gain correction values for use in correcting a second Xr, Yr coordinate value which is indicative of a position of an object relative to said digitizing panel.
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Accused Products
Abstract
A method and apparatus for aligning a first coordinate system of a digitizing panel with a second coordinate system of a display device. The method includes the steps of displaying a plurality of reference points on the display device, each of the reference points having a Xref, Yref coordinate value, determining a plurality of first Xr, Yr coordinate values from the digitizing panel which are indicative of a plurality of positions of an object positioned relative to the plurality of reference points, determining a plurality of channel gain correction values from the plurality of first Xr, Yr coordinate, values and the plurality of Xref, Yref coordinate values, and storing the plurality of channel gain correction values for use in correcting a second Xr, Yr coordinate value which is indicative of a position of an object relative to the digitizing panel.
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Citations
21 Claims
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1. A method for aligning a first coordinate system of a digitizing panel with a second coordinate system of a display device, comprising the steps of:
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displaying a plurality of reference points on the display device, each of said reference points having a Xref, Yref coordinate value; determining a plurality of first Xr, Yr coordinate values from the digitizing panel which are indicative of a plurality of positions of an object positioned relative to said plurality of reference points; determining a plurality of channel gain correction values from said plurality of first Xr, Yr coordinate values and said plurality of Xref, Yref coordinate values; and storing said plurality of channel gain correction values for use in correcting a second Xr, Yr coordinate value which is indicative of a position of an object relative to said digitizing panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer comprising:
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a display device for displaying a plurality of reference points, each of said plurality of reference points having a Xref, Yref coordinate value; a digitizing panel mounted over said display device and having a resistive layer associated therewith; a plurality of channel pre-processors each connected to a respective corner of said resistive layer; a X, Y coordinate generator coupled to said channel pre-processors and configured to generate a plurality of Xr, Yr coordinate values indicative of a plurality of positions of an object positioned relative to said plurality of reference points; and means for obtaining a plurality of channel gain correction values from said plurality of Xr, Yr coordinate values and said plurality of Xref, Yref coordinate values. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for aligning a first coordinate system of a digitizing panel with a second coordinate system of a display device, comprising the steps of:
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displaying a plurality of reference points on the display device, each of said reference points having a Xref, Yref coordinate value; determining a plurality of first Xr, Yr coordinate values from the digitizing panel which are indicative of a plurality of positions of an object positioned relative to said plurality of reference points; and determining a plurality of channel gain correction values from said plurality of first Xr, Yr coordinate values and said plurality of Xref, Yref coordinate values for use in correcting a second Xr, Yr coordinate value which is indicative of a position of an object relative to said digitizing panel.
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Specification