RFID reader system capable of adjusting tags to modify internal operations for a sensed environment
    1.
    发明授权
    RFID reader system capable of adjusting tags to modify internal operations for a sensed environment 有权
    RFID读取器系统能够调整标签以修改感测环境的内部操作

    公开(公告)号:US08451119B1

    公开(公告)日:2013-05-28

    申请号:US12370523

    申请日:2009-02-12

    IPC分类号: G08B13/14

    CPC分类号: G06K7/10198

    摘要: A method of adjusting operation of an RFID tag for an environment is described. The method includes sensing an aspect of the environment. The method also includes sending an instruction, based on the sensed aspect of the environment, to the RFID tag. The instruction encoded in a TUNE command. The instruction causes the RFID tag to perform a specific act. The specific act includes one of the following: turning a sub-circuit of the RFID tag's semiconductor chip on; turning a sub-circuit of the RFID tag's semiconductor chip off; altering a bias current within a sub-circuit of the RFID tag's semiconductor chip; altering a bias voltage within a sub-circuit of the RFID tag's semiconductor chip; and, adjusting a threshold within a sub-circuit of the RFID tag's semiconductor chip.

    摘要翻译: 描述了一种用于调整环境的RFID标签的操作的方法。 该方法包括感测环境的一个方面。 该方法还包括基于感测到的环境方面向RFID标签发送指令。 在TUNE命令中编码的指令。 该指令使RFID标签执行特定动作。 具体动作包括以下之一:将RFID标签的半导体芯片的子电路打开; 转移RFID标签的半导体芯片的子电路; 改变RFID标签的半导体芯片的子电路内的偏置电流; 改变RFID标签的半导体芯片的子电路内的偏置电压; 并且调整RFID标签的半导体芯片的子电路内的阈值。

    RFID tag chips and tags refraining from participating in a subsequent inventorying attempt and methods
    2.
    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

    IPC分类号: H04Q5/22

    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。

    RFID tags and readers employing QT command to switch tag profiles
    4.
    发明授权
    RFID tags and readers employing QT command to switch tag profiles 有权
    使用QT命令的RFID标签和读卡器切换标签配置文件

    公开(公告)号:US09024731B1

    公开(公告)日:2015-05-05

    申请号:US13900443

    申请日:2013-05-22

    摘要: RFID readers transmit a Quiet Technology (QT) command to RFID tags causing at least one of the tags to transition between a private profile and a public profile. When a tag is inventoried in the private profile, it replies to the reader with contents from its private memory. When a tag is inventoried in the public profile, it replies to the reader with contents from its public memory, where the contents of the public memory may be a subset and/or modified version of the private memory contents, or entirely different altogether. The tag's profile can be switched again by another QT command from the reader, or following a loss of power at the tag. An access password and/or a short-range mechanism may be employed to allow only authorized readers to transition tag profiles or interrogate the private memory contents of tags in the public profile.

    摘要翻译: RFID读取器将安静技术(QT)命令传输到RFID标签,使至少一个标签在私有配置文件和公共配置文件之间转换。 当标签在专用配置文件中进行盘点时,它会从其专用内存中的内容中回复读卡器。 当在公共简档中标记标签时,它从其公共存储器中的内容回复读取器,其中公共存储器的内容可以是专用存储器内容的子集和/或修改版本,或者完全不同。 标签的配置文件可以通过读写器的另一个QT命令重新切换,或者在标签丢失电源之后。 可以采用访问密码和/或短程机制来仅允许授权的读者转换标签简档或询问公共简档中的标签的私人存储器内容。

    RFID tag chips and tags with alternative behaviors and methods
    5.
    发明授权
    RFID tag chips and tags with alternative behaviors and methods 有权
    RFID标签芯片和具有替代行为和方法的标签

    公开(公告)号:US08665074B1

    公开(公告)日:2014-03-04

    申请号:US13528653

    申请日:2012-06-20

    IPC分类号: H04Q5/22

    CPC分类号: G06K19/07749

    摘要: RFID tags, ICs for RFID tags, and methods are provided. In some embodiments, an RFID tag includes a memory with multiple sections, and a processing block. The processing block may map one of these sections, or another of these sections, for purposes of responding to a first command from an RFID reader. As such, an RFID tag can operate according to the data stored in the section mapped at the time. In some embodiments, a tag can even transition from mapping one of the sections to mapping another of the sections. This can amount to the tag exhibiting alternative behaviors, and permits hiding data on the tag.

    摘要翻译: RFID标签,RFID标签的IC和方法。 在一些实施例中,RFID标签包括具有多个部分的存储器和处理块。 处理块可以映射这些部分中的一个或这些部分中的另一个,以便响应来自RFID读取器的第一命令。 因此,RFID标签可以根据当时映射的部分中存储的数据进行操作。 在一些实施例中,标签甚至可以从映射中的一个部分转换为映射另一个部分。 这可以代表展示替代行为的标签,并允许在标签上隐藏数据。

    RFID tag chips and tags with alternative behaviors and methods
    9.
    发明授权
    RFID tag chips and tags with alternative behaviors and methods 有权
    RFID标签芯片和具有替代行为和方法的标签

    公开(公告)号:US08228175B1

    公开(公告)日:2012-07-24

    申请号:US12404934

    申请日:2009-03-16

    IPC分类号: H04Q5/22

    CPC分类号: G06K19/07749

    摘要: RFID tags, ICs for RFID tags, and methods are provided. In some embodiments, an RFID tag includes a memory with multiple sections, and a processing block. The processing block may map one of these sections, or another of these sections, for purposes of responding to a first command from an RFID reader. As such, an RFID tag can operate according to the data stored in the section mapped at the time. In some embodiments, a tag can even transition from mapping one of the sections to mapping another of the sections. This can amount to the tag exhibiting alternative behaviors, and permits hiding data on the tag.

    摘要翻译: RFID标签,RFID标签的IC和方法。 在一些实施例中,RFID标签包括具有多个部分的存储器和处理块。 处理块可以映射这些部分中的一个或这些部分中的另一个,以便响应来自RFID读取器的第一命令。 因此,RFID标签可以根据当时映射的部分中存储的数据进行操作。 在一些实施例中,标签甚至可以从映射中的一个部分转换为映射另一个部分。 这可以代表展示替代行为的标签,并允许在标签上隐藏数据。

    RFID tag capable of modifying internal operations for a sensed environment
    10.
    发明授权
    RFID tag capable of modifying internal operations for a sensed environment 有权
    RFID标签能够修改感测环境的内部操作

    公开(公告)号:US08115632B1

    公开(公告)日:2012-02-14

    申请号:US12370503

    申请日:2009-02-12

    IPC分类号: G08B13/14

    CPC分类号: G06K7/10198

    摘要: A semiconductor chip for an RFID tag is described. The semiconductor chip including wireless transceiver and processing block circuitry to receive and put into effect a wirelessly received instruction encoded in a TUNE command. The instruction commanding the semiconductor chip to perform at least one specific act. The semiconductor chip having circuitry to perform the at least one specific act. The circuitry being coupled to the processing block. The circuitry and its corresponding specific act identified by at least one of the following: enablement circuitry to turn a sub-circuit within the semiconductor chip on; disablement circuitry to turn a sub-circuit within the semiconductor chip off; current bias circuitry to alter a bias current within a sub-circuit of the semiconductor chip; voltage bias circuitry to alter a bias voltage within a sub-circuit of the semiconductor chip; threshold adjustment circuitry to adjust a threshold within a sub-circuit of the semiconductor chip.

    摘要翻译: 描述了用于RFID标签的半导体芯片。 该半导体芯片包括无线收发器和处理块电路,用于接收并实施以TUNE命令编码的无线接收的指令。 指令半导体芯片执行至少一个特定动作的指令。 所述半导体芯片具有执行所述至少一个特定动作的电路。 电路耦合到处理块。 该电路及其相应的特定动作由以下至少一个标识:使半导体芯片内的子电路转动的启用电路; 使半导体芯片内的子电路断开的禁止电路; 电流偏置电路,用于改变半导体芯片的子电路内的偏置电流; 电压偏置电路,用于改变半导体芯片的子电路内的偏置电压; 阈值调整电路,用于调整半导体芯片的子电路内的阈值。