SYNCHRONIZATION METHOD BETWEEN READER AND TAG
    3.
    发明申请
    SYNCHRONIZATION METHOD BETWEEN READER AND TAG 有权
    读者和标签之间的同步方法

    公开(公告)号:US20090153309A1

    公开(公告)日:2009-06-18

    申请号:US12265205

    申请日:2008-11-05

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/0008

    摘要: Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time.

    摘要翻译: 公开了根据示例实施例的读取器和标签之间的同步方法,所述方法包括:由读取器在第一时间向标签发送第一写入命令消息; 通过标签在第二时间从读取器检测第一写入命令消息,并响应于第一写入消息向读取器发送第一响应消息; 由读取器发送包含第一次的第一时间信息到标签的第二写入命令消息; 以及使用所述第一时间和所述第二时间之间的差异,通过所述标签来校正时钟偏移。