Token passing protocol for RFID systems
    1.
    发明申请
    Token passing protocol for RFID systems 有权
    RFID系统令牌通过协议

    公开(公告)号:US20070229226A1

    公开(公告)日:2007-10-04

    申请号:US11393824

    申请日:2006-03-31

    IPC分类号: H04Q5/22

    CPC分类号: H04W74/00

    摘要: Methods, systems and apparatuses for RFID readers forming a reader network are described. In an aspect of the present invention, a plurality of RFID readers are configured to interrogate tags. Furthermore, the readers are configured to communicate with one another by transferring a token, represented by a signal. Possession of the token enables the reader to access a RF communications medium. Readers can be arranged in a ring configuration, and interconnected via wired links. A secondary token may circulate in the ring in addition to the primary token, to ensure redundancy in the system. A reader waits for a predetermined time interval before accessing the RF communications medium.

    摘要翻译: 描述了形成读取器网络的RFID阅读器的方法,系统和装置。 在本发明的一个方面,多个RFID阅读器配置成询问标签。 此外,读取器被配置为通过传送由信号表示的令牌来彼此通信。 拥有令牌使读者能够访问RF通信介质。 读者可以安排在环形配置中,并通过有线链接进行互连。 除了主令牌之外,辅助令牌可能在环中循环,以确保系统中的冗余。 读卡器在访问RF通信介质之前等待预定的时间间隔。

    Verification of singulated RFID tags by RFID readers
    2.
    发明申请
    Verification of singulated RFID tags by RFID readers 有权
    RFID阅读器对单片RFID标签的验证

    公开(公告)号:US20070257776A1

    公开(公告)日:2007-11-08

    申请号:US11412840

    申请日:2006-04-28

    IPC分类号: H04Q5/22

    摘要: Methods, systems, and apparatuses for verifying singulated tags are described. A radio frequency (RF) signal is transmitted to provide power to at least one tag. A powered tag is singulated. A delay time period is waited. A read verify command is transmitted to the singulated tag. A response is received to the read verify command. The response to the read verify command is verified to determine whether it was received from the singulated tag.

    摘要翻译: 描述用于验证单个标签的方法,系统和装置。 传输射频(RF)信号以向至少一个标签提供电力。 被动标签是单独的。 等待延迟时间。 读取验证命令被发送到单独的标签。 接收到读取验证命令的响应。 验证对读取验证命令的响应,以确定是否从单个标签接收。