| 摘要 |
PROBLEM TO BE SOLVED: To provide a parking support system by which a driver can accurately understand running circumstances by changing the display range of a current image and the display range of a past image according to a vehicle speed. SOLUTION: The control unit 2 of a navigation device 1 produces a composite image by combining the current image based on current image data and the past image based on past image data. In this case, the ratio of the display range of the past image to that of the current image, which are to be displayed on a display 12, is enlarged as the vehicle speed is slowed down. COPYRIGHT: (C)2007,JPO&INPIT
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