发明名称 |
SYSTEM AND METHOD FOR NEAR-FIELD ELECTROMAGNETIC RANGING |
摘要 |
A system for measuring distance between a first locus and a second locus includes: (a) at least one beacon device; a respective beacon device of the at least one beacon device being situated at the first locus and transmitting a respective electromagnetic signal; and (b) at least one locator device; a respective locator device of the at least one locator device being situated at the second locus and receiving the respective electromagnetic signal. The respective locator device is situated at a distance from the respective beacon device within near-field range of the respective electromagnetic signal. The respective locator device distinguishes at least two characteristics of the respective electromagnetic signal. The respective locator device employs the at least two characteristics to effect the measuring. |
申请公布号 |
WO2004017087(A2) |
申请公布日期 |
2004.02.26 |
申请号 |
WO2003US23714 |
申请日期 |
2003.07.30 |
申请人 |
Q-TRACK CORPORATION |
发明人 |
SCHANTZ, HANS, GREGORY;DEPIERRE, ROBERT, EDWARD |
分类号 |
G01S5/00;G01S5/14;G01S13/75;G01S19/17 |
主分类号 |
G01S5/00 |
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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