| 发明名称 |
Radio frequency positioning system for animals, uses tag with antenna impedance modulated by signal from subcarrier wave generator |
| 摘要 |
<p>A transmitter sends a stepped frequency request signal to a tag (13) with an antenna (14) and the impedance of the antenna is modulated by a signal produced by a sub-carrier wave generator (15, 16). The modulated response signal sent by the antenna is received by a receiver.</p> |
| 申请公布号 |
NL1029590(C2) |
申请公布日期 |
2007.01.23 |
| 申请号 |
NL20051029590 |
申请日期 |
2005.07.22 |
| 申请人 |
N.V. NEDERLANDSCHE APPARATENFABRIEK 'NEDAP' |
发明人 |
TALLIENCO WIEAND HARM FOCKENS |
| 分类号 |
G01S13/38;G01S13/75 |
主分类号 |
G01S13/38 |
| 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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