发明名称 |
Navigation device |
摘要 |
A navigation device includes a determination means which determines whether or not to activate tunnel mode function based on characteristic data of the tunnel read from the database, a vehicle speed detected by the vehicle speed detection means and a vehicle position detected by the vehicle position detection means, and a control means which displays characteristics of the tunnel to be travelled through on a display means based on a command signal from the determination means to activate the tunnel mode function and which activates various on-vehicle devices in the tunnel mode function.
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申请公布号 |
US2001007967(A1) |
申请公布日期 |
2001.07.12 |
申请号 |
US20010788576 |
申请日期 |
2001.02.21 |
申请人 |
YAMAMOTO TAKEYOSHI;HATA MASAHITO |
发明人 |
YAMAMOTO TAKEYOSHI;HATA MASAHITO |
分类号 |
G01C21/34;G01C21/36;G01S19/14;G01S19/42;(IPC1-7):G01C21/30 |
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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