发明名称 |
METHOD OF UPDATING A DATABASE OF A NAVIGATION DEVICE AND NAVIGATION DEVICE |
摘要 |
To update a database of a navigation device which stores at least a base version of a digital map, versions of the digital map which are available locally in the database or remotely from the navigation device are identified. To execute the navigation task, a version of the digital map is selected for execution of the navigation task. Data from a sub-set of storage blocks in which the selected version is stored is required to execute the navigation task. Depending on whether all storage blocks of the sub-set are already stored locally in the database, data stored in storage blocks of the sub-set which are not yet stored locally in the database are downloaded via a wireless interface. The downloaded data are stored in the database without modifying the base version of the digital map.
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申请公布号 |
US2013013557(A1) |
申请公布日期 |
2013.01.10 |
申请号 |
US201213544683 |
申请日期 |
2012.07.09 |
申请人 |
KUNATH PETER;VOIGT MARCEL;BAPTIST STEFAN;SPINDLER CARSTEN-CHRISTIAN;HEITMANN MARCUS |
发明人 |
KUNATH PETER;VOIGT MARCEL;BAPTIST STEFAN;SPINDLER CARSTEN-CHRISTIAN;HEITMANN MARCUS |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
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