Importance

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Abstract

One electrode and another electrode adjoining an upper end region of the one electrode in an operating direction of a fader sensor are divided by a boundary line extending zigzag in a generally M shape transversely relative to the operating direction, so that upper and lower apex portions of the one electrode and the other electrode bite into each other. Similarly, the one electrode and another electrode adjoining a lower end region of the one electrode each other are divided by a boundary line extending zigzag in a generally M shape transversely relative to the operating direction. As a finger touches the fader sensor, the finger simultaneously touches the three electrodes, and corresponding output signals are output therefrom. A weighted average of the output signals is calculated so that position information of the finger having touched the sensor can be acquired with a high resolution.

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First Claim