ELECTRONIC ARTICLE SURVEILLANCE SYSTEM WITH ADAPTATIVE FILTERING AND DIGITAL DETECTION
摘要
An electronic article surveillance (EAS) system includes an asynchronous noise suppression adaptive filter which removes asynchronous interference from the signal of interest with minimum distortion of the transients emitted when a sensitized tag is interrogated. The system also includes a synchronous noise suppression filter which removes interrogation synchronous noise from the signal of interest. The resulting EAS system increases the likelihood that a sensitized tag will be detected when one is present and reduces the occurence of false alarms.
申请公布号
WO9631855(A1)
申请公布日期
1996.10.10
申请号
WO1996US03737
申请日期
1996.03.19
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
RUDE, MICHAEL, J.;TAO, SAMUEL, H.;NELSON, JOHN, E.