| 发明名称 |
Device for use with a portable inertial navigation system (PINS) and method for transitioning between location technologies |
| 摘要 |
A perimeter threshold of an area is defined. The location of a device (102) is tracked using a first location technology (108) when the device (102) precedes the perimeter threshold. The location of the device (102) is tracked using a second location technology (100) when the device (102) exceeds the perimeter threshold.
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| 申请公布号 |
US6801159(B2) |
申请公布日期 |
2004.10.05 |
| 申请号 |
US20020100640 |
申请日期 |
2002.03.19 |
| 申请人 |
MOTOROLA, INC. |
发明人 |
SWOPE CHARLES B.;LAMPERT CHET A. |
| 分类号 |
G01C21/16;G01S19/48;(IPC1-7):G01S5/02;H04B7/185 |
主分类号 |
G01C21/16 |
| 代理机构 |
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代理人 |
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| 主权项 |
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