초록 ▼

In a map display system for vehicles, spot coordinates are preliminarily stored which represent map forming spots and are provided with a coordinate origin of a specified spot, and display coordinates indicating map changing frames are also preliminarily stored. The display coordinate of the present

In a map display system for vehicles, spot coordinates are preliminarily stored which represent map forming spots and are provided with a coordinate origin of a specified spot, and display coordinates indicating map changing frames are also preliminarily stored. The display coordinate of the present position of the vehicle is compared with the display coordinate of a map changing frame. When the present position reaches the map changing frame, the spot coordinate of the present position is compared with the preliminarily stored spot coordinates so as to extract spots forming a new map centering the present position of the vehicle.

대표청구항 ▼

A map display for vehicle in which in response to movement of a vehicle, a present position of the vehicle is successively computed to display the same on a map displayed on a display screen, said system comprising: a map data storage medium for preliminarily storing a plurality of spot coordinates

A map display for vehicle in which in response to movement of a vehicle, a present position of the vehicle is successively computed to display the same on a map displayed on a display screen, said system comprising: a map data storage medium for preliminarily storing a plurality of spot coordinates representing map forming spots with a specified spot as a coordinate origin; storage means for preliminarily storing map changing frame indicative of display coordinates; means for comparing display coordinates of said present position with display coordinates of map changing frame; means for extracting spot coordinates to form a new map centering said present position from said map data storage medium by comparing spot coordinates of said present position with the spot coordinates in said map data storage medium in response to a decision of said comparing means that said present position has reached said map changing frame; and means for displaying said new map on display according to spot coordinates extracted by said extracting means.