发明名称 NAVIGATION DEVICE
摘要 PURPOSE:To display a calculated optimum route in a condition where it is easy to be seen in a navigation device provided with a route calculating function. CONSTITUTION:In the optimum route calculated by the route calculating function, all distance of the optimum route is displayed on one screen of road map as shown by screen E. A display is performed by plural pieces of circle marks 24 and a vehicle present place mark 25 and a target place mark 22 as well, are displayed on the same screen. When all distance of the optimum route is long, the reduced scale of a displayed map is switched according to that and all route is displayed by one screen of a map picture always. Then, all route of the optimum route is confirmed by one screen of a map picture and the optimum route is easy to be brasped.
申请公布号 JPH05313581(A) 申请公布日期 1993.11.26
申请号 JP19920120809 申请日期 1992.05.13
申请人 SUMITOMO ELECTRIC IND LTD 发明人 DEGAWA HIROHISA
分类号 G01C21/00;G09B29/10;(IPC1-7):G09B29/10 主分类号 G01C21/00
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