发明名称 |
LARGE SIGNAL NOISE CANCELLATION IN ELECTRONIC ARTICLE SURVEILLANCE |
摘要 |
In an EAS system and method, a reference antenna is used to spatially separate the interference and tag signal allowing the interference signal to be removed, which improves performance of the EAS receiver. The reference antenna is coupled to the system by an adaptive filter, which can be a software filter that is continually adapting itself to optimum performance. The continuous adaptation obviates the need for manually tuning the coupling network and permits the system to perform at its optimum levle over long periods of time.
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申请公布号 |
WO02063585(A1) |
申请公布日期 |
2002.08.15 |
申请号 |
WO2002US03570 |
申请日期 |
2002.02.05 |
申请人 |
SENSORMATIC ELECTRONICS CORPORATION |
发明人 |
FREDERICK, THOMAS, J.;OAKES, JEFFREY, T. |
分类号 |
G08B13/24;(IPC1-7):G08B13/24;G06K19/077;G06K19/07;G06K19/067 |
主分类号 |
G08B13/24 |
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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