发明名称 Method and apparatus for target deactivation and reactivation in article surveillance systems
摘要 Targets (14) mounted on objects (12) for detection by a magnetic type theft detection system are deactivated in a target deactivator (26,64) which has magnet assembly (40,72) made up of spaced apart magnets with alternately opposed poles extending in a plane and guide walls (36, 38, 68, 70) extending perpendicular to the plane. Targets are reactivated by a reactivator (46, 76) having a magnet (52, 80) mounted thereon and arranged to be slid along the target.
申请公布号 US4665387(A) 申请公布日期 1987.05.12
申请号 US19830513242 申请日期 1983.07.13
申请人 KNOGO CORPORATION 发明人 COOPER, MICHAEL N.;POKALSKY, PETER A.
分类号 G08B13/24;G11B23/00;(IPC1-7):G08B13/14 主分类号 G08B13/24
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