| 摘要 |
A cursor (13) is positioned on a display (5) in response to a user input (12) on a pointing device (10). The user input, which represents a desired cursor movement (14) on the display, is converted to time varying magnitude and argument components in polar space. The magnitude component is processed so as to control a speed of movement of the cursor on the display. Separately from this, the argument component is processed so as to suppress rapid angular variations in the movement of the cursor on the display.
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