发明名称 |
Navigation device and communication method |
摘要 |
A navigation device is provided with a communication portion that is capable of communication with a server that distributes data, and a data storage portion that stores data downloaded from the server. When start-up of the vehicular navigation device is initiated, communication with the server is executed and data is downloaded prior to the completion of start-up of the vehicular navigation device.
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申请公布号 |
US2004204824(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
US20040810689 |
申请日期 |
2004.03.29 |
申请人 |
AISIN AW CO., LTD. |
发明人 |
NAITO MITSUHIRO;YAMADA KUNIHIRO |
分类号 |
G01C21/00;G01C21/26;G01C21/34;G08G1/00;G08G1/0962;G08G1/0969;H04B7/26;(IPC1-7):G01C21/26 |
主分类号 |
G01C21/00 |
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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