发明名称 |
Data Updating System, Navigation Device, Server, and Method of Data Updating |
摘要 |
To provide a data updating system and the like for easily performing updating the difference for the database which contains a large amount of data, each piece of the data being highly correlated, such as a map database that contains road network data. According to the present invention, the data updating system includes a terminal device running according to a predefined operating program, and servers providing the terminal device with a differential data file for updating a database. The terminal includes a local database in an updating data format differing from a reference data format to be referenced to by the operating program and being updated with the differential data file, and a conversion means converting data stored in the local database so as to have the reference data format. The servers include a differential data file output means outputting the differential data file to be provided to the terminal device. |
申请公布号 |
US2009177706(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20070227492 |
申请日期 |
2007.06.08 |
申请人 |
AISIN AW CO., LTD.;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAKAHATA SEIJI;SAWAI KIMIYOSHI;KODAN TOMOKI;SUGIMOTO HIRONOBU |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
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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