发明名称 |
Combined global positioning system receiver and radio with enhanced tracking features |
摘要 |
A portable GPS unit (10) communicates over a wireless radio network (12) with at least one other such unit (10A-10E). The unit (10) may transmit radio signals over the network (12) indicative of the unit's location and receive similar radio signals from the other units (10A-10E). The unit (10) is operable to calculate and display a route that may be followed to go to a moving waypoint such as one of the other units (10A-10E).
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申请公布号 |
US6871144(B1) |
申请公布日期 |
2005.03.22 |
申请号 |
US20020096676 |
申请日期 |
2002.03.13 |
申请人 |
GARMIN LTD. |
发明人 |
LEE WAI C. |
分类号 |
G01C21/20;G01S5/00;(IPC1-7):G01C21/26;G01S1/08 |
主分类号 |
G01C21/20 |
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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