Invention Grant
US07301530B2 Pointer control method, pointing apparatus, and host apparatus therefor 有权
指针控制方法,指示装置及其主机装置

Pointer control method, pointing apparatus, and host apparatus therefor
Abstract:
A host apparatus includes an ultrasound receiving unit receiving an ultrasound signal from a pointing apparatus and outputting an electric signal. A controlling unit calculates a position of a pointer on a display screen corresponding to a position of the pointing apparatus based on the electric signal from the ultrasound receiving unit, and outputs a control signal to the display screen to position the pointer at the calculated position of the display screen.
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