| 摘要 |
The apparatus enables a user to recognize the way he is moving his finger with respect to, for example, a sweep-type fingerprint sensor so that the user can easily and surely learn an appropriate way the finger (body part) should be moved. A velocity detecting means detects a velocity at which the body part moves with respect to a sensor, and an image generating means generates an arbitrary pattern, of which a portion corresponding to a position where the body part is located when the movement velocity is detected is altered according to the detected movement velocity, and the generated pattern is shown on a display.
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