发明公开
EP1299869A2 DEVICE FOR CHANGING THE STATUS OF DUAL STATUS MAGNETIC ELECTRONIC ARTICLE SURVEILLANCE MARKERS
有权
DEVICE关于修订磁性标记物品监控的双重国度
- 专利标题： DEVICE FOR CHANGING THE STATUS OF DUAL STATUS MAGNETIC ELECTRONIC ARTICLE SURVEILLANCE MARKERS
- 专利标题（中）： DEVICE关于修订磁性标记物品监控的双重国度
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申请号： EP00973610.9申请日： 2000-10-17
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公开(公告)号： EP1299869A2公开(公告)日： 2003-04-09
- 发明人: ZAREMBO, Peter, J. , BELKA, Anthony, M.
- 申请人： 3M Innovative Properties Company
- 申请人地址： 3M Center,P.O. Box 33427 Saint Paul, MN 55133-3427 US
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： 3M Center,P.O. Box 33427 Saint Paul, MN 55133-3427 US
- 代理机构： VOSSIUS & PARTNER
- 优先权： US611248 20000707
- 国际公布： WO02005238 20020117
- 主分类号： G08B13/24
- IPC分类号： G08B13/24
摘要：
A device is disclosed for activating and deactivating magnetic electronic article surveillance (EAS) markers, and particularly those EAS markers that are associated with magnetically recorded media. In one embodiment, the device includes control circuitry comprising a coil, such as a solenoid-type coil, that provides a substantially uniform magnetic field that reliably activates and deactivates the marker, yet doesn't damage the magnetically-recorded media.
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