Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Karl P. Hauck0
Luke David Ronald Hares0
Date of Patent
December 20, 2005
0Patent Application Number
099986990
Date Filed
November 30, 2001
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Disclosed is a touch screen calibration system and method that applies a signal to a the terminals of a touch screen and applies a calibration impedance to those terminals; the effect of the calibration impedance applied to the terminals is sensed; the X, Y position for each terminal is calculated upon application of the calibration impedance and the offset error for each terminal is calculated and applied to obtain the corrected touch position for a measured touch position; in addition the gain error may be calculated for each terminal and applied to obtain the corrected touch position.
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