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公开(公告)号：US07408466B2
公开(公告)日：2008-08-05
申请号：US11412170
申请日：2006-04-25
IPC分类号： G08B13/14
CPC分类号： G06K7/0008
摘要： Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected and used to adjust a waveform shaping parameter. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.
摘要翻译： 描述了RFID读取器系统与RFID标签通信的系统，软件，设备和方法。 检测并结合使用所选择的信道遇到的RF能量来调整波形整形参数。 RF波可以从读取器发送到RFID标签，并且RF波可以从RFID标签反向散射。 从RFID标签发射或反向散射的至少一些RF波具有根据经调整的波形整形参数的形状的波形。
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2.发明授权公开(公告)号：US07436308B2
公开(公告)日：2008-10-14
申请号：US11412192
申请日：2006-04-25
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K19/0723
摘要： Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected. The RF energy can be a signal from another RFID reader. The detected signal is used to adjust a waveform shaping parameter. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.
摘要翻译： 描述了RFID读取器系统与RFID标签通信的系统，软件，设备和方法。 检测到结合使用所选择的频道遇到的RF能量。 RF能量可以是来自另一RFID读取器的信号。 检测到的信号用于调整波形整形参数。 RF波可以从读取器发送到RFID标签，并且RF波可以从RFID标签反向散射。 从RFID标签发射或反向散射的至少一些RF波具有根据经调整的波形整形参数的形状的波形。
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公开(公告)号：US07417548B2
公开(公告)日：2008-08-26
申请号：US11411657
申请日：2006-04-25
申请人： Gregory T. Kavounas , Christopher J. Diorio , Kurt E. Sundstrom , Todd E. Humes , Paul Dietrich
发明人： Gregory T. Kavounas , Christopher J. Diorio , Kurt E. Sundstrom , Todd E. Humes , Paul Dietrich
IPC分类号： G08B13/14
CPC分类号： G06K7/10297 , G06K7/0008 , G06K19/0723
摘要： Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected. The RF energy can be a signal from an RFID tag. The detected signal is used to adjust a waveform shaping parameter. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.
摘要翻译： 描述了RFID读取器系统与RFID标签通信的系统，软件，设备和方法。 检测到结合使用所选择的频道遇到的RF能量。 RF能量可以是来自RFID标签的信号。 检测到的信号用于调整波形整形参数。 RF波可以从读取器发送到RFID标签，并且RF波可以从RFID标签反向散射。 从RFID标签发射或反向散射的至少一些RF波具有根据经调整的波形整形参数的形状的波形。
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公开(公告)号：US07432814B2
公开(公告)日：2008-10-07
申请号：US11412171
申请日：2006-04-25
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K19/0723
摘要： Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy detected in conjunction with using a selected channel is detected and used to adjust a waveform shaping parameter. The waveform shaping parameter can be additionally stored, and then reconstructed for later use in the same channel. Reconstruction can optionally be also from derived channel performance data. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the reconstructed waveform shaping parameter.
摘要翻译： 描述了RFID读取器系统与RFID标签通信的系统，软件，设备和方法。 检测结合使用所选通道的RF能量并用于调整波形整形参数。 可以另外存储波形整形参数，然后重建以供以后在同一通道中使用。 重构也可以是衍生通道性能数据。 RF波可以从读取器发送到RFID标签，并且RF波可以从RFID标签反向散射。 从RFID标签发送到或反向散射的至少一些RF波具有根据重建的波形整形参数的具有形状的波形。
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公开(公告)号：US07391329B2
公开(公告)日：2008-06-24
申请号：US11412172
申请日：2006-04-25
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K19/0723
摘要： Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected and used to adjust a waveform shaping parameter in combination with a performance requirement. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.
摘要翻译： 描述了RFID读取器系统与RFID标签通信的系统，软件，设备和方法。 检测并结合使用所选通道遇到的RF能量，并结合演奏要求调整波形整形参数。 RF波可以从读取器发送到RFID标签，并且RF波可以从RFID标签反向散射。 从RFID标签发射或反向散射的至少一些RF波具有根据经调整的波形整形参数的形状的波形。
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公开(公告)号：US08390430B1
公开(公告)日：2013-03-05
申请号：US13571861
申请日：2012-08-10
IPC分类号： H04Q5/22
CPC分类号： G06Q40/02 , G06Q10/10 , G06Q20/24 , G06Q20/405 , G06Q40/025
摘要： An RFID reader uses an adaptive filter to mitigate the effects of colored noise in tag reply signals. The adaptive filter may be a linear equalizer, a linear-predictive canceller, or a decision-feedback equalizer. The adaptive filter estimates the colored noise portion of the signal received from the tag and removes the noise estimate from the tag signal. The adaptive filter bases its noise estimate on the difference between a desired signal and a portion of the received signal. The reader uses reader-generated training data, a CW signal, and/or portions of the tag reply signal to adapt the filter.
摘要翻译： RFID读取器使用自适应滤波器来减轻标签应答信号中有色噪声的影响。 自适应滤波器可以是线性均衡器，线性预测消除器或判决反馈均衡器。 自适应滤波器估计从标签接收的信号的有色噪声部分，并从标签信号中去除噪声估计。 自适应滤波器基于其期望信号和接收信号的一部分之间的差异的噪声估计。 读取器使用读取器生成的训练数据，CW信号和/或标签应答信号的部分来适配滤波器。
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公开(公告)号：US08325014B1
公开(公告)日：2012-12-04
申请号：US12568645
申请日：2009-09-28
IPC分类号： H04Q5/22
CPC分类号： G06Q40/02 , G06Q10/10 , G06Q20/24 , G06Q20/405 , G06Q40/025
摘要： An RFID reader uses an adaptive filter to mitigate the effects of colored noise in tag reply signals. The adaptive filter may be a linear equalizer, a linear-predictive canceller, or a decision-feedback equalizer. The adaptive filter estimates the colored noise portion of the signal received from the tag and removes the noise estimate from the tag signal. The adaptive filter bases its noise estimate on the difference between a desired signal and a portion of the received signal. The reader uses reader-generated training data, a CW signal, and/or portions of the tag reply signal to adapt the filter.
摘要翻译： RFID读取器使用自适应滤波器来减轻标签应答信号中有色噪声的影响。 自适应滤波器可以是线性均衡器，线性预测消除器或判决反馈均衡器。 自适应滤波器估计从标签接收的信号的有色噪声部分，并从标签信号中去除噪声估计。 自适应滤波器基于其期望信号和接收信号的一部分之间的差异的噪声估计。 读取器使用读取器生成的训练数据，CW信号和/或标签应答信号的部分来适配滤波器。
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8.发明授权RFID tag chips and tags refraining from participating in a subsequent inventorying attempt and methods 有权RFID标签芯片和标签不要参与随后的库存尝试和方法公开(公告)号：US08279045B2
公开(公告)日：2012-10-02
申请号：US12057467
申请日：2008-03-28
申请人： Christopher J. Diorio , Paul Dietrich , Theron Stanford , Chad Lindhorst , Kambiz Rahimi , Ali Aiouaz , Aanand Esterberg
发明人： Christopher J. Diorio , Paul Dietrich , Theron Stanford , Chad Lindhorst , Kambiz Rahimi , Ali Aiouaz , Aanand Esterberg
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10039 , G06Q10/087
摘要： RFID tags and chips for RFID tags are capable of being inventoried in one or more early attempts. These tags are capable of then refraining from participating in one or more subsequent inventorying attempts. In some embodiments refraining is performed solely by the tag, while in others it is guided by the RFID reader. In some embodiments, an inventoried indicator in the tag becomes updated upon backscattering. The updated value is used by the tag to recognize a subsequent attempt, and thus refrain from participating in it. This permits the subsequent attempt to be used more intensively for inventorying the more elusive, harder-to-read tags, especially in more demanding scenarios.
摘要翻译： 用于RFID标签的RFID标签和芯片能够在一个或多个早期尝试中进行盘点。 这些标签能够避免参与一个或多个后续的盘点尝试。 在一些实施例中，仅通过标签进行避免，而在其它实施例中，RFID由RFID读取器引导。 在一些实施例中，标签中的盘存指示符在后向散射时被更新。 标签使用更新的值来识别后续尝试，因此不要参与。 这允许随后的尝试更加集中地用于清查更难以捉摸，难以阅读的标签，特别是在更苛刻的场景中。
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公开(公告)号：US07982611B1
公开(公告)日：2011-07-19
申请号：US12272776
申请日：2008-11-17
申请人： Brent A. Picasso , Paul Dietrich , Michael J. Dacquisto , Joseph Baird , Christopher J. Diorio , Harley K. Heinrich
发明人： Brent A. Picasso , Paul Dietrich , Michael J. Dacquisto , Joseph Baird , Christopher J. Diorio , Harley K. Heinrich
IPC分类号： G08B13/14
CPC分类号： G06K7/0008
摘要： Rogue RFID readers are detected by listening to communication between rogue reader and a tag, capturing a time stamp and/or a channel associated with the communication, and checking the captured time stamp/channel to determine whether it is a result of a command from another legitimate reader. Audible or visible alerts may be issued, flags may be set, or messages transmitted to an administrator upon determining the operation of the rogue RFID reader. Based on the alert(s) affected tags or the rogue reader may be jammed or an effect of the illegal transmission by the rogue reader may be reversed or tags replaced.
摘要翻译： 通过监听流氓读取器和标签之间的通信，捕获与通信相关联的时间戳和/或通道来检测流氓RFID读取器，并且检查所捕获的时间戳/通道以确定它是否是来自另一个的命令的结果 合法的读者。 可以发出声音或可见的警报，可以设置标志，或者在确定流氓RFID读取器的操作时发送给管理员的消息。 基于警报受影响的标签或流氓读取器可能被卡住，或者流氓读取器的非法传输的效果可能被颠倒或被替换。
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10.发明申请FACILITATING RFID TAGS TO REFRAIN FROM PARTICIPATING IN A SUBSEQUENT INVENTORYING ATTEMPT 审中-公开促进RFID标签从参与到后续的存货入手公开(公告)号：US20080258878A1
公开(公告)日：2008-10-23
申请号：US12057509
申请日：2008-03-28
申请人： Paul Dietrich , Christopher J. Diorio , Theron Stanford , Chad Lindhorst , Kambiz Rahimi , Ali Aiouaz , Aanand Esterberg
发明人： Paul Dietrich , Christopher J. Diorio , Theron Stanford , Chad Lindhorst , Kambiz Rahimi , Ali Aiouaz , Aanand Esterberg
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10039 , G06Q10/087
摘要： RFID reader systems, readers, components, software and methods can inventory RFID tags in one or more early attempts. Then they can facilitate the inventoried RFID tags to refrain from participating in one or more subsequent inventorying attempts. In some embodiments, an inventoried indicator in the tag becomes updated upon backscattering. The updated value is used by the tag to recognize a subsequent attempt, and thus refrain from participating in it. This permits the subsequent attempt to be used more intensively for inventorying the more elusive, harder-to-read tags, especially in more demanding scenarios.
摘要翻译： RFID读取器系统，读取器，组件，软件和方法可以在一个或多个早期尝试中存储RFID标签。 然后，它们可以促进所记录的RFID标签，以避免参与一个或多个后续的盘点尝试。 在一些实施例中，标签中的盘存指示符在后向散射时被更新。 标签使用更新的值来识别后续尝试，因此不要参与。 这允许随后的尝试更加集中地用于清查更难以捉摸，难以阅读的标签，特别是在更苛刻的场景中。
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