发明名称 |
Method for updating a geographic database |
摘要 |
A system and method of providing incremental updates for a geographical data set for use in navigation systems. The system and method include organizing updates of geographical data set into a series of transactions. Each of the transactions includes a transaction identifier that uniquely identifies the transaction, and n steps to be applied to the geographical data set to complete the transaction. All the steps of the transaction are required to be successfully applied in order for the transaction to be completed, otherwise, the entire transaction is not applied.
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申请公布号 |
US6487559(B2) |
申请公布日期 |
2002.11.26 |
申请号 |
US20010962390 |
申请日期 |
2001.09.25 |
申请人 |
NAVIGATION TECHNOLOGIES CORPORATION |
发明人 |
MCGRATH TIMOTHY;JASPER JOHN;HERBST JAMES |
分类号 |
G01C21/26;G06F17/30;(IPC1-7):G06F17/40 |
主分类号 |
G01C21/26 |
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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