发明名称 POSITION INFORMATION INPUTTING DEVICE USING VARIATION OF DUTY RATIO OF AN ACCELEROMETER
摘要 <p>The present invention relates to a position information inputting device which does not find position by detecting the relative displacement between the main body and a plane by a common ball or optical methods, but provides a device for finding position by sensing a direction of rotation using an accelerometer. The device also provides a means which moves a cursor by computing the pulse value against a certain duty, not by using a regular accelerometer.</p>
申请公布号 WO2001090877(A1) 申请公布日期 2001.11.29
申请号 KR2000000788 申请日期 2000.07.21
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