Magnetic calibration array
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United States of America Patent
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Nov 7, 2006
Issued Date -
N/A
app pub date -
Jul 23, 2004
filing date -
Jul 24, 2003
priority date (Note) -
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Abstract
A calibration system is provided for use in generating calibration data for calibrating an X-Y digitiser. The calibration system uses an alignment head having an array of magnetic field generators which are for alignment with the X-Y digitiser. Each of the magnetic field generators is individually drivable so that calibration data can be obtained for different positions on the X-Y digitiser corresponding to the positions of the magnetic field generators in the array. The resulting calibration data is then used to generate a correction map which is stored in the X-Y digitiser
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