发明名称 |
Vehicle navigation apparatus and method |
摘要 |
A vehicle navigation apparatus for producing navigation information about a set of road maps, the starting position, current position and destination of a vehicle, a first optimum travel route having the vehicle travel to the destination from the starting position with a shortest driving time interval, and a second optimum travel route having the vehicle travel to the destination from the current position with a shortest driving time interval. The second optimum travel route includes a return travel route having a leading route end junction connected to the first optimum travel route and a trailing end point representative of the current position, and a detour travel route having a detour starting point where the vehicle starts to detour from the first optimum travel route and a detour ending point where the vehicle returns to the first optimum travel route.
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申请公布号 |
US5638280(A) |
申请公布日期 |
1997.06.10 |
申请号 |
US19950409810 |
申请日期 |
1995.03.24 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
NISHIMURA, SHIGEKI;KAGAWA, KOUJI;MIMURA, RYUJI;SUZUKI, MITSUNOBU |
分类号 |
G01C21/34;G06Q10/00;(IPC1-7):G06F19/00 |
主分类号 |
G01C21/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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