发明名称 |
Storage medium for map information for navigation system and system for offering map information for navigation system |
摘要 |
A storage medium for map information for a navigation system includes an IC memory chip or an IC memory card of a small memory capacity. This storage medium stores detailed map information of a limited region including part of a highway network and information of the highway network covering a predetermined area which includes the limited region and is wider than the limited region. A system for offering map information for a navigation system includes two storage media. One storage medium is the same as the above-mentioned storage medium and the other storage medium has a small memory capacity. The other storage medium stores detailed map information of a limited region different from the limited region whose information is stored in the one storage medium.
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申请公布号 |
US5515284(A) |
申请公布日期 |
1996.05.07 |
申请号 |
US19950425353 |
申请日期 |
1995.04.19 |
申请人 |
ZEXEL CORPORATION |
发明人 |
ABE, TATSUHIKO |
分类号 |
G01C21/32;G08G1/0968;(IPC1-7):G08G1/096;G01C21/00;G06F165/00 |
主分类号 |
G01C21/32 |
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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