NAVIGATION SYSTEM,申请号JP19970108990-传众专利搜索

NAVIGATION SYSTEM

申请公布号：JPH10300484(A)

申请号：JP19970108990

申请日期：1997.04.25

申请公布日期：1998.11.13

申请人：

NEC HOME ELECTRON LTD

发明人：WATANABE KAZUYA

分类号：G09B29/00;G01C21/00;G01S5/02;G01S19/14;G08G1/0969;(IPC1-7):G01C21/00;G08G1/096

主分类号：G09B29/00

摘要：PROBLEM TO BE SOLVED: To provide a navigation system capable of making as small as possible the capacity of a storage medium storing map data, by slightly modifying a method of managing the map data. SOLUTION: A navigation system 1A includes at least a current position measuring means 3, an input device 6, a map information storage medium 8A storing map data, a reader 7 reading the map data from the map information storage medium 8A, a display device 11 displaying the map data on a screen, and a control device 2 controlling these members, and is so designed that the map data read from the map information storage medium 8A is displayed on the screen of the display device 11 and that the current position coordinates of a vehicle, determined from the current position measuring means 3, are superimposed on this map. In this case, data for managing road data are added to the head of map data in the map information storage medium 8A.