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1.发明公开
公开(公告)号：EP0859999A1
公开(公告)日：1998-08-26
申请号：EP96937015.0
申请日：1996-10-29
CPC分类号： G08B13/2471
摘要： An EAS system (1) employing a central station (6) having a central processing unit (7) and a local station (8) having a microcontroller (9) and in which the functions necessary for detecting the EAS tag (5) signals and generating alarms (13) are shared by the central station and the local station. A switch (14A-14D) is further provided at the local station for automatically reconfiguring the receiver antennas (3A-3H) based on antenna configuration instructions generated at the central station responsive to certain conditions at the location (2) being monitored.
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2.发明公开INTELLIGENT POWER PACK ASSISTED PEDESTAL TUNING FOR ELECTRONIC ARTICLE SURVEILLANCE 有权有表决权包支持FOR电子产品监控智能BASE
公开(公告)号：EP1374105A1
公开(公告)日：2004-01-02
申请号：EP02717726.0
申请日：2002-03-26
发明人： EMBLING, Steven , ZAMPINI, Michael, A. , JEFFREYS, William , FREDERICK, Thomas , ALTERIO, Ronald , AYOUB, Fadi, E.
IPC分类号： G06F17/50
CPC分类号： H01Q1/2208 , G08B13/2471 , H01Q1/22 , H01Q7/005
摘要： Automatic tuning of an EAS antenna pedestal (14, Fig. 2A) without the use of special tools or advanced training is provided. The capacitance of the antenna circuit is adjusted to tune the resonant frequency to the desired frequency. Measurement of the current level is used to validate that the antenna is resonant at the desired frequency. If the current level indicates that the antenna is not resonant at the specified frequency. LEDs (Fig. 2A) located on a capacitor tuning board light to indicate where jumpers (10, Fig. 1) should be placed to add or remove capacitance from the circuit. Alternately, the capacitance values can be electronically added or removed from the circuit.
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公开(公告)号：EP1216464B1
公开(公告)日：2003-10-22
申请号：EP00955825.5
申请日：2000-08-22
IPC分类号： G08B13/24 , G08B13/16 , G08B13/181
CPC分类号： G08B13/248 , G08B13/1645 , G08B13/181 , G08B13/2462 , G08B13/2482
摘要： An electronic article surveillance system responsive to the distance to a target within an interrogation zone is provided. The interrogation zone is defined by an electromagnetic field generated with a known level and transmitted by at least one antenna. A target within the interrogation zone can be any object, such as a person or shopping cart, within the interrogation zone. The target may include an EAS marker securable to an article for passage through the interrogation zone. The EAS marker is detectable at a frequency when in the electromagnetic field, and is detected by EAS detection equipment, as known in the art. The target within the interrogation zone is detected, and the distance from the antenna to the target is measured. The level of the electromagnetic field is controlled according to the distance to the target within the interrogation zone. The output level is adjusted according to the distance to the target. The EAS system can include multiple antennas each producing an electromagnetic field that in combination define the interrogation zone. A ranging transducer is mounted near each antenna, or at opposing ends of the interrogation zone to measure the distance to a target within the interrogation zone. The output level of each electromagnetic field transmitted by each antenna can be individually controlled according to the distance from that antenna to the target. Multiple targets can be detected, and the power level of each electromagnetic field is adjusted accordingly. The electromagnetic field can be switched off and on by detection of the target in the interrogation zone. The direction of motion of the target can also be detected and used as a factor in alarm activation decisions.
摘要翻译： 提供了一种电子物品监视系统，其响应询问区域内到目标的距离。 询问区由用已知电平产生并由至少一个天线发射的电磁场定义。 询问区内的目标可以是询问区内的任何物体，例如人或购物车。 目标可以包括可固定到物品以通过询问区的EAS标记。 如在本领域中已知的，EAS标记在处于电磁场中时的频率处可被检测到，并且被EAS检测设备检测到。 检测询问区内的目标，并测量从天线到目标的距离。 根据询问区域内到目标的距离来控制电磁场的电平。 输出水平根据到目标的距离进行调整。 EAS系统可以包括多个天线，每个天线产生组合定义询问区的电磁场。 测距传感器安装在每个天线附近或者在询问区的相对端，以测量询问区内到目标的距离。 每个天线发射的每个电磁场的输出电平可以根据从该天线到目标的距离单独控制。 可以检测多个目标，并且相应地调整每个电磁场的功率水平。 通过在询问区域中检测目标可以关闭和打开电磁场。 目标的运动方向也可以被检测并用作警报激活决定中的因素。
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4.发明授权INTELLIGENT POWER PACK ASSISTED PEDESTAL TUNING FOR ELECTRONIC ARTICLE SURVEILLANCE 有权有表决权包支持FOR电子产品监控智能BASE
公开(公告)号：EP1374105B1
公开(公告)日：2010-03-17
申请号：EP02717726.0
申请日：2002-03-26
发明人： EMBLING, Steven , ZAMPINI, Michael, A. , JEFFREYS, William , FREDERICK, Thomas , ALTERIO, Ronald , AYOUB, Fadi, E.
IPC分类号： G06F17/50
CPC分类号： H01Q1/2208 , G08B13/2471 , H01Q1/22 , H01Q7/005
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5.发明授权
公开(公告)号：EP0859999B1
公开(公告)日：2003-09-03
申请号：EP96937015.4
申请日：1996-10-29
CPC分类号： G08B13/2471
摘要： An EAS system (1) employing a central station (6) having a central processing unit (7) and a local station (8) having a microcontroller (9) and in which the functions necessary for detecting the EAS tag (5) signals and generating alarms (13) are shared by the central station and the local station. A switch (14A-14D) is further provided at the local station for automatically reconfiguring the receiver antennas (3A-3H) based on antenna configuration instructions generated at the central station responsive to certain conditions at the location (2) being monitored.
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6.发明公开ELECTRONIC ARTICLE SURVEILLANCE TRANSMITTER CONTROL USING TARGET RANGE 有权电子WARENÜBERWACHUNGSEINRRICHTUNG（EAS）由目标距离控制SENDER
公开(公告)号：EP1216464A1
公开(公告)日：2002-06-26
申请号：EP00955825.5
申请日：2000-08-22
IPC分类号： G08B13/24 , G08B13/16 , G08B13/181
CPC分类号： G08B13/248 , G08B13/1645 , G08B13/181 , G08B13/2462 , G08B13/2482
摘要： An electronic article surveillance system responsive to the distance to a target within an interrogation zone is provided. The interrogation zone is defined by an electromagnetic field generated with a known level and transmitted by at least one antenna. A target within the interrogation zone can be any object, such as a person or shopping cart, within the interrogation zone. The target may include an EAS marker securable to an article for passage through the interrogation zone. The EAS marker is detectable at a frequency when in the electromagnetic field, and is detected by EAS detection equipment, as known in the art. The target within the interrogation zone is detected, and the distance from the antenna to the target is measured. The level of the electromagnetic field is controlled according to the distance to the target within the interrogation zone. The output level is adjusted according to the distance to the target. The EAS system can include multiple antennas each producing an electromagnetic field that in combination define the interrogation zone. A ranging transducer is mounted near each antenna, or at opposing ends of the interrogation zone to measure the distance to a target within the interrogation zone. The output level of each electromagnetic field transmitted by each antenna can be individually controlled according to the distance from that antenna to the target. Multiple targets can be detected, and the power level of each electromagnetic field is adjusted accordingly. The electromagnetic field can be switched off and on by detection of the target in the interrogation zone. The direction of motion of the target can also be detected and used as a factor in alarm activation decisions.
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