| 摘要 |
PURPOSE:To accurately display a road where a person is driving a vehicle. CONSTITUTION:The title device is provided with a receiver 15 of GPS signal, a display 12 for displaying current position and map information, a map information storage device 13, and a data processing device 14 for obtaining the current position measurement data from the GPS signal and at the same time for processing the current position measured data and the map information, and then outputting the current position display data and the map information display data on the display 12. The display 12 is provided with a display 16 for displaying the current position and the map information and a current position compensation command part 17 where a user instructs the current position on the display 16 for instructing compensation of the current position. The current position which is instructed by the current position compensation command part 17 is displayed on the map information of the display 16 immediately and overlappingly and the user chart instruct compensation of the current position at an arbitrary time after instructing the current position onto the display 16. |
