发明名称 |
Navigation device, navigation method, and navigation program |
摘要 |
A navigation device for a route guidance includes: a GPS unit that acquires information about the current location by performing a communication with a global positioning system (GPS); a navigation-information acquiring unit that acquires map data and route data from a navigation server in a network; a guidance controller that performs the route guidance based on the information; a GPS-communication controller that cuts off the communication with the GPS when the information is not acquired; and a server-communication controller that cuts of a communication with the navigation server when the information is not acquired.
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申请公布号 |
US2006089797(A1) |
申请公布日期 |
2006.04.27 |
申请号 |
US20050545269 |
申请日期 |
2005.08.11 |
申请人 |
NAVITIME JAPAN CO., LTD. |
发明人 |
SUZUKI YUSUKE;ONISHI KEISUKE;KIKUCHI SHIN |
分类号 |
G01C21/32;G09B29/10;G01C21/00;G01C21/26;G01C21/34;G01S5/00;G06Q50/00;G06Q50/10;G08G1/005;G08G1/0968;H04B7/26;H04W4/02;H04W52/02;H04W64/00;H04W88/02 |
主分类号 |
G01C21/32 |
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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