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1. 发明授权

US08311485B2 Method and system for receiver nulling using coherent transmit signals 有权
标题翻译：使用相干发射信号的接收机归零的方法和系统
公开(公告)号：US08311485B2
公开(公告)日：2012-11-13
申请号：US12686729
申请日：2010-01-13
申请人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto , Stanley A. Strzelec
发明人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto , Stanley A. Strzelec
IPC分类号： H04B1/00
CPC分类号： H04B1/525 , G08B13/2402 , H04B1/0475
摘要： A method and system are provided for canceling interference signals from a received signal. A ratio module receives as input a ratio of a filtered receiver output signal level and a filtered transmitter output signal level. A product module receives as inputs an output of the ratio module and a transmitter output. The product module calculates a product of the output of the ratio module and the transmitter output. An adjusted receiver signal module receives a difference calculated from the received signal level and the output of the product module. The method and system are suitable for use in a metal detection subsystem with a larger security system.
摘要翻译：提供一种用于从接收信号中消除干扰信号的方法和系统。比率模块接收滤波的接收机输出信号电平和滤波的发射机输出信号电平的比值作为输入。产品模块作为输入接收比率模块的输出和发射机输出。产品模块计算比率模块的输出和变送器输出的乘积。经调整的接收机信号模块接收从接收信号电平和产品模块的输出计算出的差值。该方法和系统适用于具有较大安全系统的金属检测子系统。

2. 发明授权

US08350699B2 Method and system for adaptive sliding door pattern cancellation in metal detection 有权
标题翻译：金属检测中自适应滑门锁定方法及系统
公开(公告)号：US08350699B2
公开(公告)日：2013-01-08
申请号：US13353417
申请日：2012-01-19
申请人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto
发明人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto
IPC分类号： G08B13/14
CPC分类号： G01V3/10 , G08B13/248
摘要： A metal detection device, system and method are provided. The device includes a receiver that receives a signal pattern representing electromagnetic field disturbances over time caused by movement of metal doors in a detection region. The device further includes a memory in communication with the receiver. The memory stores a recorded signal pattern of a previously received signal pattern and at least one quality criterion. The device further includes a processor in communication with the memory. The processor determines pattern vitals indicating a quality of the received signal pattern. The processor further determines whether the at least one quality criterion is met based at least in part on the pattern vitals. The processor further updates the recorded signal pattern based at least in part on determining whether the at least one quality criterion is met.
摘要翻译：提供金属检测装置，系统和方法。该装置包括接收器，其接收由于检测区域中的金属门的移动而导致的随时间的表示电磁场干扰的信号图案。该设备还包括与接收器通信的存储器。存储器存储先前接收到的信号模式的记录信号模式和至少一个质量标准。该设备还包括与存储器通信的处理器。处理器确定指示接收信号模式的质量的图形生命。处理器进一步确定至少部分地基于图案生命线来满足至少一个质量标准。所述处理器至少部分地基于确定是否满足所述至少一个质量标准来更新所记录的信号模式。

3. 发明授权

US08659428B2 Method and system for reducing effect of interference in integrated metal detection/electronic article surveillance systems 有权
标题翻译：集成金属检测/电子物品监控系统中减少干扰影响的方法和系统
公开(公告)号：US08659428B2
公开(公告)日：2014-02-25
申请号：US12716809
申请日：2010-03-03
申请人： Manuel A. Soto , Erik Lee Dinh , Adam S. Bergman
发明人： Manuel A. Soto , Erik Lee Dinh , Adam S. Bergman
IPC分类号： G08B13/14
CPC分类号： G08B13/248 , G01V3/10
摘要： An integrated electronic article surveillance (“EAS”)/metal detection system. The system includes a transmitter operable to transmit an EAS interrogation signal, where the EAS interrogation signal establishes an interrogation zone and is used to detect EAS markers and metal objects within the interrogation zone. The EAS interrogation signal is transmitted at a first frequency during an EAS detection cycle and at a second frequency during a metal detection cycle. The system includes a receiver operable to detect a signal received from an EAS marker, and a metal detector module operable to detect a metal object in proximity to the integrated EAS/metal detection system, where the metal detector module includes a filter tuned to substantially filter out the first transmission frequency.
摘要翻译：综合电子物品监控（“EAS”）/金属检测系统。该系统包括可操作以发送EAS询问信号的发射机，其中EAS询问信号建立询问区并用于检测询问区内的EAS标记和金属对象。 EAS询问信号在EAS检测周期期间以第一频率发送，在金属检测周期期间以第二频率发送。该系统包括可操作以检测从EAS标记接收的信号的接收器和可操作以检测靠近集成EAS /金属检测系统的金属物体的金属检测器模块，其中金属检测器模块包括被调谐以基本上过滤的滤波器输出第一个传输频率。

4. 发明授权

US08264353B2 Method and system for sliding door pattern cancellation in metal detection 有权
标题翻译：金属检测中滑门锁定方法及系统
公开(公告)号：US08264353B2
公开(公告)日：2012-09-11
申请号：US12774799
申请日：2010-05-06
申请人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto
发明人： Erik Lee Dinh , Adam S. Bergman , Manuel A. Soto
IPC分类号： G08B13/14
CPC分类号： G01V3/10 , G01V3/38
摘要： A method and system for reducing the signal interference effects of metal doors in a metal detection system. The system includes a transmitter operable to transmit an interrogation signal that is used to detect transitory metal objects within the detection region, a receiver operable to receive instantaneous signals that represent electromagnetic field disturbances during operation of the metal detection system and include electromagnetic field disturbances attributed to the movement of metal doors. The system also includes a metal detection module that determines a resulting waveform representing the difference between the instantaneous signals received during operation of the metal detection system and a recorded pattern of signals representing electromagnetic field disturbances caused by a pattern of movement of the metal doors in the detection region when a transitory metallic object is not present. The record pattern is canceled from the resulting waveform leaving only signals from transitory metal objects.
摘要翻译：一种用于减少金属门在金属检测系统中的信号干扰效应的方法和系统。该系统包括可操作以发送用于检测检测区域内的临时金属物体的询问信号的发射器，可接收在金属检测系统操作期间表示电磁场干扰的瞬时信号的接收器，并且包括归因于金属门的运动。该系统还包括金属检测模块，其确定表示在金属检测系统的操作期间接收到的瞬时信号之间的差异的所得波形和表示由金属门的移动模式引起的电磁场干扰的信号的记录模式当不存在短暂的金属物体时，检测区域。记录模式从结果波形中消除，仅留下来自短暂金属物体的信号。

5. 发明授权

US07852197B2 System and method for inhibiting detection of deactivated labels using detection filters having an adaptive threshold 有权
标题翻译：使用具有自适应阈值的检测滤波器禁止检测去激活标签的系统和方法
公开(公告)号：US07852197B2
公开(公告)日：2010-12-14
申请号：US11931176
申请日：2007-10-31
申请人： Erik Lee Dinh , Manuel A. Soto
发明人： Erik Lee Dinh , Manuel A. Soto
IPC分类号： H04Q5/22
CPC分类号： G08B13/2482 , G08B13/2471 , G08B13/2477 , G08B29/26
摘要： A method, system and computer program product for inhibiting detection of deactivated tags. The method, system and computer program product include receiving a signal that includes environment noise from at least one tag, extracting signal detection information that includes a signal detection energy value from the received signal, extracting signal deactivation information that includes a signal deactivation energy value from the received signal, and determining a failure to deactivate ratio that corresponds to the signal detection energy value divided by the signal deactivation energy value. Generation of an alarm event is inhibited upon the failure to deactivate ratio being less than the selectable threshold and generating a noise factor to adjust a selectable threshold.
摘要翻译：一种用于禁止检测失活标签的方法，系统和计算机程序产品。方法，系统和计算机程序产品包括从至少一个标签接收包括环境噪声的信号，从接收信号中提取包括信号检测能量值的信号检测信息，提取包括信号去激活能量值的信号去激活信息，接收到的信号，并且确定对应于信号检测能量值除以信号去激活能量值的去激活比率的失败。无效停用比例小于可选择阈值，并产生噪声因子以调整可选择的阈值时，会抑制报警事件的产生。

6. 发明授权

US08264348B2 Interference detector resulting in threshold adjustment 有权
标题翻译：干扰检测器导致阈值调整
公开(公告)号：US08264348B2
公开(公告)日：2012-09-11
申请号：US12534438
申请日：2009-08-03
申请人： Erik Lee Dinh
发明人： Erik Lee Dinh
IPC分类号： G08B21/00
CPC分类号： G08B13/248 , G08B13/2471 , G08B29/26
摘要： A method and system are provided for adjusting a threshold value of an alarm for a metal detecting system, based on a detected interference with other systems that operate at adjacent frequencies. The method and system include receiving a plurality of sample values and calculating a discrepancy value based on a difference between a maximum value and a minimum value of the plurality of sample values, wherein the discrepancy value corresponds to detected interference. The discrepancy value is compared to a predefined interference threshold value and an activation signal is generated. A fast threshold adjustor receives the activation signal when the discrepancy value is greater than or equal to the predefined interference threshold value and a slow threshold adjustor receives the activation signal when the discrepancy value is less than the predefined interference threshold value. The activation signal triggers an output from the fast threshold adjustor or the slow threshold adjustor that is applied to adjust the threshold value.
摘要翻译：提供了一种方法和系统，用于基于与在相邻频率下操作的其他系统的检测到的干扰来调整金属检测系统的报警阈值。所述方法和系统包括：接收多个样本值，并基于所述多个样本值的最大值和最小值之间的差计算差异值，其中所述差异值对应于检测到的干扰。将差异值与预定义的干扰阈值进行比较，并产生激活信号。当差异值大于或等于预定义的干扰阈值时，快速阈值调节器接收激活信号，而当差值小于预定义的干扰阈值时，慢速阈值调节器接收激活信号。激活信号触发来自快速阈值调节器的输出或适用于调整阈值的慢阈值调整器。

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