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公开(公告)号：US08698629B1
公开(公告)日：2014-04-15
申请号：US13164593
申请日：2011-06-20
CPC分类号： G06K7/0008 , G06K7/10297 , H04L67/34 , H04W4/80 , H04W84/18
摘要： Radio Frequency Identification (RFID) readers may transmit one or more encapsulated commands within the payload of an encapsulating command. An encapsulated command includes at least a command code and an instruction. A reader may instruct a tag to store the encapsulated command(s) or instruction(s) for later execution. A sequence of encapsulated commands may be contained within one encapsulating command or spread across multiple encapsulating commands. The sequence of encapsulated commands, or the sequence of instructions associated with the encapsulated commands, may form a program. The reader may cause the tag to execute the instructions or program upon receipt, upon a trigger event, serially or in parallel, and/or may cause the tag to modify the instructions or program by adjusting parameters. The reader may later instruct a tag to execute the instructions or program via another command which, in some cases, may be sent prior to tag singulation.
摘要翻译： 射频识别（RFID）读取器可以在封装命令的有效载荷内传送一个或多个封装的命令。 封装的命令至少包括命令代码和指令。 读取器可以指示标签存储封装的命令或指令以供稍后执行。 封装命令的序列可以包含在一个封装命令中或分散在多个封装命令之间。 封装命令的顺序或与封装命令相关联的指令序列可以形成程序。 读取器可以使得标签在接收到触发事件时，串行或并行地执行指令或程序，和/或可以通过调整参数来使标签修改指令或程序。 读者可以稍后指示标签通过另一命令来执行指令或程序，该命令在某些情况下可以在标签分割之前被发送。
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公开(公告)号：US08669872B1
公开(公告)日：2014-03-11
申请号：US13164578
申请日：2011-06-20
IPC分类号： G08B13/14
CPC分类号： G06K7/10009 , G06F9/45512 , G06F2009/4557 , G06K7/10108 , G06K7/10297 , G06K19/0723 , H04L67/34 , H04W4/80 , H04W84/18
摘要： Radio Frequency Identification (RFID) tags may receive one or more encapsulated commands within the payload of an encapsulating command. An encapsulated command includes at least a command code and an instruction. A tag may store the encapsulated command(s) or the instruction portion of the encapsulated command(s) for later execution. A sequence of encapsulated commands may be contained within one encapsulating command or spread across multiple encapsulating commands. The sequence of encapsulated commands, or the sequence of instructions associated with the encapsulated commands, may form a program. The tag may execute the instructions or program upon receipt, upon a trigger event, serially or in parallel, and/or may modify the instructions or program by adjusting parameters. The tag may later be told by a reader to execute the instructions or program via another command which, in some cases, may be sent prior to tag singulation.
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公开(公告)号：US08593257B1
公开(公告)日：2013-11-26
申请号：US12890628
申请日：2010-09-25
IPC分类号： H04Q5/22
CPC分类号： G06K7/10297 , G06K7/10475 , H04Q2213/13095
摘要： In RFID systems employed for loss prevention, an item supplier or an ingress reader writes an ownership code associated with an organization or facility into a tag, indicating that an item to which the tag is attached is associated with the facility and not foreign. At checkout or point-of-sale an authorization reader writes a digital signature into the tag indicating that the tagged item is allowed to leave the facility. At point-of-exit an exit reader determines if the tagged item is allowed to leave the facility by verifying the ownership code and the digital signature. The loss-prevention system may issue an alert or sound an alarm if a facility-associated item is leaving the facility without a proper digital signature indicating that the item is approved to leave.
摘要翻译： 在用于损失预防的RFID系统中，物品供应商或入口读取器将与组织或设施相关联的所有权代码写入标签，指示标签所附着的物品与设施而不是外部相关联。 在结帐或销售点，授权读者将数字签名写入标签，指示允许标记的物品离开设施。 在退出点处，退出阅读器通过验证所有权代码和数字签名来确定标记的物品是否被允许离开设施。 如果与设施有关的物品离开设施而没有正确的数字签名，表明物品被批准离开，则防损系统可能会发出警报或发出警报。
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公开(公告)号：US07999675B2
公开(公告)日：2011-08-16
申请号：US12035393
申请日：2008-02-21
CPC分类号： G06K7/0008 , H04W84/18
摘要： RFID tags and chips for RFID tags are capable of replying using changed reply timing. In a number of embodiments, this timing change is achieved when a tag receives a custom timing command from an RFID reader. In some embodiments, the changed reply timing affects an amount of delay before a tag backscatters a reply.
摘要翻译： 用于RFID标签的RFID标签和芯片能够使用改变的应答定时来应答。 在许多实施例中，当标签从RFID读取器接收到定制定时命令时，实现该定时改变。 在一些实施例中，改变的应答定时影响标签反向散射回复之前的延迟量。
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5.发明授权公开(公告)号：US07872582B1
公开(公告)日：2011-01-18
申请号：US11872774
申请日：2007-10-16
CPC分类号： G06K7/0008 , G06K7/10138
摘要： RFID tag circuits, tags, and methods are provided for using alternative memory lock bits. A pointer in tag memory is configured to point to one or the other of the alternative lock bits associated with a section of the memory for performing a function in response to a reader command. Upon receiving the reader command, the tag first checks the pointer and performs the function based on which lock bit(s) is selected.
摘要翻译： 提供RFID标签电路，标签和方法用于使用备用存储器锁定位。 标签存储器中的指针被配置为指向与存储器的一部分相关联的替代锁定位中的一个或另一个，以响应于读取器命令执行功能。 在接收到读取器命令时，标签首先检查指针并基于哪个锁定位被选择来执行该功能。
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6.发明授权Reading codes of RFID tags incoming at premises and removing them later as they exit 有权读取RFID标签的代码，并在出厂时稍后移除公开(公告)号：US07696882B1
公开(公告)日：2010-04-13
申请号：US12018937
申请日：2008-01-24
IPC分类号： G08B13/14
CPC分类号： G08B13/2482 , G06K2017/0045 , G06K2017/0051 , G06Q10/087 , G06Q10/0875 , G08B13/246 , G08B13/2462 , G08B13/2488
摘要： RFID reader systems, components, software and methods are provided for use premises that have RFID-tagged items. When a person comes onto an enclosure of the premises already carrying a personal tag, the incoming code of that personal tag is read. When later the person exits the enclosure, they could be transporting some of the items that have actionable codes. The actionable codes can be read, but the incoming code can be removed from them, before the actionable codes are acted upon, in Point-of-Sale or Electronic Article Surveillance systems.
摘要翻译： 提供RFID读取器系统，组件，软件和方法用于具有RFID标签的物品的场所。 当一个人进入已经携带个人标签的场所的外壳时，读取该个人标签的传入代码。 当后来的人退出外壳时，他们可以运送一些具有可操作代码的物品。 可以读取可操作的代码，但是可以在销售点或电子文件监控系统中执行可操作的代码之前，将其中的代码移除。
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公开(公告)号：US07667589B2
公开(公告)日：2010-02-23
申请号：US10891894
申请日：2004-07-14
IPC分类号： G08B19/00
CPC分类号： G06K19/07767 , G06K19/07749
摘要： RFID tags have an on-chip antenna and an off-chip antenna. One of the antennas can become uncoupled if the proper signal is received, while the other antenna may still operate. The uncoupled antenna can be the larger one, for example the off-chip antenna. Then the tag can then be read only by the smaller antenna, which effectively reduces the range of the RFID tag, but without disabling it entirely.
摘要翻译： RFID标签具有片上天线和片外天线。 如果接收到适当的信号，其中一个天线可能会脱耦，而另一个天线仍然可以工作。 非耦合天线可以是较大的天线，例如片外天线。 那么标签然后可以被较小的天线读取，这有效地减少了RFID标签的范围，但是没有完全禁用它。
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公开(公告)号：US20090237220A1
公开(公告)日：2009-09-24
申请号：US12475899
申请日：2009-06-01
CPC分类号： G06K19/0723 , G06K19/0701
摘要： A system and method for generating a rectified signal in a RFID tag. An alternating signal is received by the RFID tag, and a first phase of the alternating signal is coupled to a gate and to a first non-controlling terminal of a first switching transistor. The non-controlling terminal of the first switching transistor is one of a source and a drain of the first switching transistor. A first bias voltage is applied between the first non-controlling terminal and the gate of the first switching transistor and a rectified voltage is received between the first non-controlling terminal and a second non-controlling terminal of the first switching transistor.
摘要翻译： 一种用于在RFID标签中产生整流信号的系统和方法。 交替信号由RFID标签接收，交流信号的第一相耦合到第一开关晶体管的栅极和第一非控制端子。 第一开关晶体管的非控制端子是第一开关晶体管的源极和漏极之一。 在第一非控制端子和第一开关晶体管的栅极之间施加第一偏置电压，并且在第一非控制端子和第一开关晶体管的第二非控制端子之间接收整流电压。
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公开(公告)号：US07245213B1
公开(公告)日：2007-07-17
申请号：US11033028
申请日：2005-01-10
CPC分类号： H04L63/0428 , H04L63/0492 , H04L63/083
摘要： RFID system components, such as readers and tags, communicate where at least a portion of data or a password is transmitted in encrypted form. The reader transmits a command, along with data or a password encrypted using an encryption kernel. In some instances, the tag itself has sent the kernel.
摘要翻译： 诸如读取器和标签的RFID系统组件在以加密形式传送数据或密码的至少一部分的情况下通信。 读取器发送命令，以及使用加密内核加密的数据或密码。 在某些情况下，标签本身已发送内核。
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10.发明授权RFID readers and tags transmitting and receiving waveform segment with ending-triggering transition 有权RFID阅读器和标签发送和接收具有结束触发转换的波形段公开(公告)号：US07187290B2
公开(公告)日：2007-03-06
申请号：US11347734
申请日：2006-02-02
IPC分类号： G08B13/14
CPC分类号： G06K7/10297 , G06K7/0008
摘要： RFID readers exchange information with RFID tags. The information is encoded for transmission and decoded upon reception. Encoding is in binary bits, which are in turn encoded in waveform segments. The last transmitted waveform incorporates an ending-triggering transition, and terminates in a preset manner with respect to when the ending-triggering transition occurs. Parsing while decoding can happen by waiting for the ending-triggering transition, and then waiting according to the preset manner. This way there is no ambiguity in the ending of the waveform, and no End Frame is necessary.
摘要翻译： RFID读写器与RFID标签交换信息。 信息被编码用于发送并在接收时被解码。 编码是二进制位，它们又以波形段编码。 最后发送的波形包含终止触发转换，并且相对于结束触发转换发生时以预设的方式结束。 解码时可以通过等待结束触发转换来进行解码，然后根据预设的方式进行等待。 这样一来，波形的结束就没有歧义，没有结束帧是必要的。
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