SYSTEMS AND METHODS FOR POWER SUPPLY SYNCHRONIZATION IN RADIO FREQUENCY IDENTIFICATION (RFID) READERS
    1.
    发明申请
    SYSTEMS AND METHODS FOR POWER SUPPLY SYNCHRONIZATION IN RADIO FREQUENCY IDENTIFICATION (RFID) READERS 有权
    无线电频率识别(RFID)读取器中的电源同步的系统和方法

    公开(公告)号:US20090261659A1

    公开(公告)日:2009-10-22

    申请号:US12425932

    申请日:2009-04-17

    IPC分类号: H02J1/00

    摘要: A system for power supply synchronization in an Radio Frequency Identification (RFID) reader is shown and described. In one embodiment, the system includes one or more switched mode power supply devices and a signal generator. Each of the switched mode power supply devices provides power to at least one component of the RFID reader. The signal generator transmits a synchronization signal of a controlling frequency to each of the one or more power supply devices. In one embodiment, the system includes a signal processing unit that is configured to reject one or more spectral components from the output of the RFID reader.

    摘要翻译: 示出并描述了射频识别(RFID)读取器中的电源同步系统。 在一个实施例中,系统包括一个或多个开关模式电源装置和信号发生器。 每个开关模式电源装置向RFID读取器的至少一个部件提供电力。 信号发生器将控制频率的同步信号发送到一个或多个电源装置中的每一个。 在一个实施例中,系统包括被配置为从RFID读取器的输出中拒绝一个或多个频谱分量的信号处理单元。

    Systems and methods for power supply synchronization in radio frequency identification (RFID) readers
    2.
    发明授权
    Systems and methods for power supply synchronization in radio frequency identification (RFID) readers 有权
    射频识别(RFID)阅读器中电源同步的系统和方法

    公开(公告)号:US08196831B2

    公开(公告)日:2012-06-12

    申请号:US12425932

    申请日:2009-04-17

    IPC分类号: G06K7/08

    摘要: A system for power supply synchronization in an Radio Frequency Identification (RFID) reader is shown and described. In one embodiment, the system includes one or more switched mode power supply devices and a signal generator. Each of the switched mode power supply devices provides power to at least one component of the RFID reader. The signal generator transmits a synchronization signal of a controlling frequency to each of the one or more power supply devices. In one embodiment, the system includes a signal processing unit that is configured to reject one or more spectral components from the output of the RFID reader.

    摘要翻译: 示出并描述了射频识别(RFID)读取器中的电源同步系统。 在一个实施例中,系统包括一个或多个开关模式电源装置和信号发生器。 每个开关模式电源装置向RFID读取器的至少一个部件提供电力。 信号发生器将控制频率的同步信号发送到一个或多个电源装置中的每一个。 在一个实施例中,系统包括被配置为从RFID读取器的输出中拒绝一个或多个频谱分量的信号处理单元。

    Correlator co-processor for CDMA RAKE receiver operations
    3.
    发明授权
    Correlator co-processor for CDMA RAKE receiver operations 有权
    用于CDMA RAKE接收机操作的相关协同处理器

    公开(公告)号:US06650694B1

    公开(公告)日:2003-11-18

    申请号:US09607410

    申请日:2000-06-30

    IPC分类号: H04B169

    摘要: A programmable, flexible, vector correlation engine for CDMA mobile and base station chip rate signal processing. A correlator co-processor (CCP) performs the de-spreading tasks for a RAKE receiver, early/late correlations for time tracking, and has provision for coherent accumulation of different lengths. The CCP also performs energy estimation and non-coherent accumulation functions. The CCP can also perform correlation functions required for delay profile estimation, and for search/acquisition functions. The same centralized Data Path is used to perform all these functions; a common controller generates signals into the Data Path in response to tasks initiated by a host processor (e.g., DSP). The tasks written into the CCP are performed effectively in parallel by the CCP Data Path.

    摘要翻译: 用于CDMA移动和基站码片速率信号处理的可编程的,灵活的矢量相关引擎。 相关器协处理器(CCP)执行RAKE接收机的解扩任务,用于时间跟踪的早/晚相关性,并且提供了不同长度的相干累加。 CCP也执行能量估计和非相干累积函数。 CCP还可以执行延迟轮廓估计和搜索/获取功能所需的相关函数。 使用相同的集中式数据路径来执行所有这些功能; 公共控制器响应于由主处理器(例如,DSP)发起的任务,将信号产生到数据路径中。 写入CCP的任务由CCP Data Path并行执行。