发明名称 |
Metal detector target identification using flash phase analysis |
摘要 |
A flash phase analysis circuit provides parallel phase channels for simultaneously analyzing a detected signal in each of several phase windows and providing parallel outputs indicating whether a target falls in one of the phase windows. In one implementation, the parallel outputs each drive a segment of an output device to indicate the target type to the user. The flash phase analysis circuit divides a detected signal among the phase windows and then simultaneously compares the measured signal at each phase window with a reference signal. The circuit matches measured data with pre-selected phase characteristics corresponding to known targets in parallel and provides parallel output signals indicating target type.
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申请公布号 |
US6421621(B1) |
申请公布日期 |
2002.07.16 |
申请号 |
US20000550297 |
申请日期 |
2000.04.14 |
申请人 |
WHITE'S ELECTRONICS, INC. |
发明人 |
EARLE JOHN L. |
分类号 |
G01V3/10;G01V3/11;G01V3/15;(IPC1-7):G01V3/11 |
主分类号 |
G01V3/10 |
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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