发明名称 Vehicle navigation system and recording medium
摘要 The invention provides a system which can select a less crowded road as a road section of a guidance route. The vehicle navigation system executes a route search from a departing point or the present position of the vehicle to the destination and provides guidance for the guidance route, taking into account whether a road is in a city area or a suburban area. The vehicle navigation system includes an information memory for storing map information for each road section, a route search routine for searching for a route from the present position to the destination based on map information stored in the information memory, and a decision routine for determining whether a road to be searched is in a city area or in a suburban area, and wherein the route search searches for a route by weighting the roads which are determined to be in the city area in order to give a lower preference thereto.
申请公布号 US6269303(B1) 申请公布日期 2001.07.31
申请号 US19980131333 申请日期 1998.08.07
申请人 AISIN AW CO., LTD. 发明人 WATANABE KAZUYUKI;FUKAYA TAKAHARU;TOMIOKA NORIHIRO
分类号 G09B29/00;G01C21/00;G01C21/34;G06F19/00;G08G1/0969;(IPC1-7):G06F7/00 主分类号 G09B29/00
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