| 摘要 |
PURPOSE:To prevent the frequent change of the display of its own position with the movement of a moving body. CONSTITUTION:An address-data display selecting processing section 4 controls a display in a display section 6 on the basis of the speed information of a moving body obtained by a position measuring section 1 or a speed measuring section 5. Its own position is indicated minutely on the picture plane of the display section 6 up to the display of a 'chome' when the moving body is shifted at low speed, and information such as speed, a course, etc., is designated in addition to the omission of the display, etc., of the 'chome' when the moving body is moved at high speed. Since minute display such as the display of the 'chome' is omitted at the time of movement at high speed, the frequent change of the display of its own position with the shifting of the moving body is prevented, and the picture plane easy to be viewed is acquired. |
