发明授权
- 专利标题： ENERGIZING CIRCUIT FOR EAS MARKER DEACTIVATION DEVICE
- 专利标题（中）： 励磁电路对于设备FOR失活的商品监测标签
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申请号： EP99932172.2申请日： 1999-07-02
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公开(公告)号： EP1103035B1公开(公告)日： 2009-09-09
- 发明人: ALICOT, Jorge, Fernando , NARLOW, Douglas, A. , COPELAND, Richard, L. , LAMBETH, David, N.
- 申请人： Sensormatic Electronics Corporation
- 申请人地址： 6600 Congress Avenue Boca Raton, Florida 33487 US
- 专利权人： Sensormatic Electronics Corporation
- 当前专利权人： Sensormatic Electronics Corporation
- 当前专利权人地址： 6600 Congress Avenue Boca Raton, Florida 33487 US
- 代理机构： Hafner, Dieter
- 优先权： US110508 19980706
- 国际公布： WO2000002173 20000113
- 主分类号： G08B13/24
- IPC分类号： G08B13/24
摘要：
A device (10) for deactivating a magnetomechanical EAS marker includes two coils (24, 28, 26, 30) and an energizing circuit (32) for alternately driving the coils. One coil (24, 28) is driven for one cycle of an alternating power signal, and then the other coil (26, 30) is driven for one cycle, and this sequence is repeated. The driving signal (31) is switched from one coil to the other at a point in time which corresponds to a zero crossing of the current level of the driving signal.
公开/授权文献
- EP1103035A1 ENERGIZING CIRCUIT FOR EAS MARKER DEACTIVATION DEVICE 公开/授权日：2001-05-30
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