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    • 1. 发明申请
    • LLRP-BASED FLEXIBLE READER SYSTEM AND METHOD
    • 基于LLRP的灵活读取系统和方法
    • WO2010075149A1
    • 2010-07-01
    • PCT/US2009/068385
    • 2009-12-17
    • SYMBOL TECHNOLOGIES, INC.LIN, Lang,MOLINA, Hugo,ZHU, Ping,
    • LIN, Lang,MOLINA, Hugo,ZHU, Ping,
    • H04L29/08
    • H04L67/12H04L67/28
    • A system includes a host computing device (110), a first RFID transceiver (120), and at least one second RFID transceiver (130; 140). The host computing device (110) executes an application according to a predetermined RFID communication protocol. The predetermined RFID communication protocol supports communication only with a single RFID transceiver. The first RFID transceiver (120) communicates with the host computing device (110) according to the predetermined RFID communication protocol. The at least one second RFID transceiver (130; 140) communicates with the first RFID transceiver (120). The at least one second RFID transceiver (130; 140) provides data to the host computing device (110) only via the first RFID transceiverb (120).
    • 系统包括主计算设备(110),第一RFID收发器(120)和至少一个第二RFID收发器(130; 140)。 主计算设备(110)根据预定的RFID通信协议执行应用。 预定的RFID通信协议仅支持与单个RFID收发器的通信。 第一RFID收发器(120)根据预定的RFID通信协议与主机计算设备(110)进行通信。 所述至少一个第二RFID收发器(130; 140)与所述第一RFID收发器(120)通信。 至少一个第二RFID收发器(130; 140)仅通过第一RFID收发器(120)向主计算设备(110)提供数据。
    • 2. 发明申请
    • RADIO FREQUENCY IDENTIFICATION SYSTEM AND RELATED OPERATING METHODS
    • 无线电频率识别系统及相关操作方法
    • WO2012071132A1
    • 2012-05-31
    • PCT/US2011/058345
    • 2011-10-28
    • SYMBOL TECHNOLOGIES, INC.LIN, Lang,HARISCHANDRA, Chandrashekhara,KHADE, Deepak,
    • LIN, Lang,HARISCHANDRA, Chandrashekhara,KHADE, Deepak,
    • G06K17/00G01S5/00
    • G06K17/0022G01S13/82G01S13/878G06K2017/0045
    • A method of operating a radio frequency identification (RFID) system is provided. The method interrogates RFID tags with an RFID reader and provides at least some of the collected tag data to a mobile device that is unable to communicate with RFID tags using the over-the-air interface. In some situations, the RFID system obtains the current location of the mobile device and determines the location of a target tag relative to the current location of the mobile device. Locating the target tag in this manner involves the interrogation of a reference tag located at the mobile device, along with the target tag, using one RFID reader. The position of the target tag relative to the reference tag is calculated in response to the tag response signals obtained from the target and reference tags. Moreover, location of the target tag can be independently determined relative to the location of a mobile reader, by using a reference tag attached to a fixed reader or to the mobile reader.
    • 提供了一种操作射频识别(RFID)系统的方法。 该方法用RFID读取器来询问RFID标签,并且将收集的标签数据中的至少一些提供给无法使用空中接口与RFID标签通信的移动设备。 在某些情况下,RFID系统获得移动设备的当前位置并且确定目标标签相对于移动设备的当前位置的位置。 以这种方式定位目标标签涉及使用一个RFID阅读器询问位于移动设备处的参考标签以及目标标签。 响应于从目标和参考标签获得的标签响应信号来计算目标标签相对于参考标签的位置。 此外,通过使用附接到固定阅读器或移动阅读器的参考标签,可以相对于移动阅读器的位置独立地确定目标标签的位置。