Product identification tag device and reader
    1.
    发明申请
    Product identification tag device and reader 失效
    产品识别标签设备和读卡器

    公开(公告)号:US20060038658A1

    公开(公告)日:2006-02-23

    申请号:US10919800

    申请日:2004-08-17

    IPC分类号: H04Q5/22 G08B13/14

    CPC分类号: G06K19/0701 G06K7/0008

    摘要: An electronic identification tag, usually in very small size, responds to a reader with an identification code unique to the object to which the tag is attached. The stand-alone device responds to a reader signal by storing energy received from the signal, then using the stored energy to generate another signal that is encoded with identification information. In operation, a reader generates RF energy which can reach a multiplicity of such tags over a distance of several meters. The system minimizes power requirements for the tag by minimizing intelligence in the IC. Use of a transmit frequency which is different from the reader's power frequency reduces interference between the power pulse and information pulse, eliminates the need for filters and enables the multiplied clock reference frequency as the transmit carrier frequency.

    摘要翻译: 通常尺寸非常小的电子识别标签用读写器对标签附着的对象特有的识别代码进行响应。 独立设备通过存储从信号接收的能量来响应读取器信号,然后使用所存储的能量来生成另外的用识别信息编码的信号。 在操作中,读取器产生RF能量,其可以在几米的距离上达到多个这样的标签。 该系统通过最小化IC中的智能来最小化标签的电源要求。 使用不同于读取器功率频率的发射频率可以减少功率脉冲与信号脉冲之间的干扰,消除了对滤波器的需要,并使倍频时钟参考频率成为发射载波频率。

    Product identification tag device and reader
    2.
    发明授权
    Product identification tag device and reader 失效
    产品识别标签设备和读卡器

    公开(公告)号:US07317378B2

    公开(公告)日:2008-01-08

    申请号:US10919800

    申请日:2004-08-17

    IPC分类号: H04Q1/00

    CPC分类号: G06K19/0701 G06K7/0008

    摘要: An electronic identification tag, usually in very small size, responds to a reader with an identification code unique to the object to which the tag is attached. The stand-alone device responds to a reader signal by storing energy received from the signal, then using the stored energy to generate another signal that is encoded with identification information. In operation, a reader generates RF energy which can reach a multiplicity of such tags over a distance of several meters. The system minimizes power requirements for the tag by minimizing intelligence in the IC. Use of a transmit frequency which is different from the reader's power frequency reduces interference between the power pulse and information pulse, eliminates the need for filters and enables the multiplied clock reference frequency as the transmit carrier frequency.

    摘要翻译: 通常尺寸非常小的电子识别标签用读写器对标签附着的对象特有的识别代码进行响应。 独立设备通过存储从信号接收的能量来响应读取器信号,然后使用所存储的能量来生成另外的用识别信息编码的信号。 在操作中,读取器产生RF能量,其可以在几米的距离上达到多个这样的标签。 该系统通过最小化IC中的智能来最小化标签的电源要求。 使用不同于读取器功率频率的发射频率可以减少功率脉冲与信号脉冲之间的干扰,消除了对滤波器的需要,并使倍频时钟参考频率成为发射载波频率。