发明名称 SIGNAL BLOCKING DETECTION IN OFFENDER MONITORING SYSTEMS
摘要 <p>An electronic monitoring device for monitoring an individual and detecting signal blocking. The electronic monitoring device may be equipped with GPS and/or RF communication technology that may be interrupted intentionally or unintentionally. The device compares sampled incident energy with a reference level to identify an occurrence of blocking the transmitter signal. The device may also base determination of a signal blocking occurrence on input from a status detection module. Status information is also leveraged to intelligently calibrate the device to more robustly determine a tampering event.</p>
申请公布号 CA2896495(A1) 申请公布日期 2014.07.03
申请号 CA20132896495 申请日期 2013.12.17
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 HAMERLY, MICHAEL E.
分类号 G08B29/04;G07C9/00;G08B21/02 主分类号 G08B29/04
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