Patent ID: 6366866
Filing Date: 2002-04-02
Classification: G06F

Abstract:
An apparatus for detecting a first coordinate and a second coordinate independent from said first coordinate, comprising:a sensor unit disposed to generate a first data signal for specifying said first coordinate and a second data signal for specifying said second coordinate; and a correcting unit coupled to receive said first and second data signals, disposed to correct said first data signal using an adjustable first parameter, and correcting said second data signal using a second parameter adjustable independent from said first parameter, wherein said first parameter includes a first number of A/D conversion of said first data signal, and said second parameter includes a second number of A/D conversion of said second data signal; and said correcting unit includes means for setting said first and second numbers of A/D conversion independently, means for A/D converting said first data signal by said set first number of A/D conversion, and for A/D converting said second data signal by said set second number of A/D conversion, and means for calculating an average value of said A/D converted first data and calculating an average value of said A/D converted second data, said calculated average values of said A/D converted first data and said A/D converted second data constitute a sample for said first data signal and said second data signal, respectively, wherein said first parameter includes a first number of samples for calculating an average among samples of said first data signal, and said second parameter includes a second number of samples for calculating an average among samples of said second data signal; and said correcting unit further includes â€ƒmeans for setting said first and second numbers of samples independently, and â€ƒmeans for calculating an average of said set first number of samples of the first data signal, and for calculating an average of said set second number of samples of said second data signal.