发明名称 |
NAVIGATION SYSTEM |
摘要 |
<p>A navigation system comprising a GPS (15) for detecting a current position; a DVD drive (16) for reading a map from a DVD (100) stored with a plurality of partially overlapping maps; a memory card (18) for storing information to identify a portion overlapping with another map, in the map being used for a navigation; and a CPU (11) for judging whether or not the coordinates of the current position are contained in the overlapping portion, on the basis of the coordinates of the current position and the information stored in the memory card (18), and for controlling, in response to the judgement that the coordinates of the current position are contained in the overlapping portion, the DVD drive (16) to read the maps sharing the overlapping portion. As a result, the map data to be read can be smoothly switched according to the current position.</p> |
申请公布号 |
WO2005108927(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
WO2005JP03725 |
申请日期 |
2005.03.04 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;YAMASHITA, ATSUSHI;OGISHIMA, RYOICHI |
发明人 |
YAMASHITA, ATSUSHI;OGISHIMA, RYOICHI |
分类号 |
G09B29/00;G01C21/00;G01C21/26;G01C21/30;G08G1/0969;G09B29/10;(IPC1-7):G01C21/26;G08G1/096 |
主分类号 |
G09B29/00 |
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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