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    • 1. 发明申请
    • Rfid System
    • Rfid系统
    • US20080290997A1
    • 2008-11-27
    • US12158291
    • 2006-12-21
    • Nam Yun KimYong Hee LeeYoung Bin ChoJae Yeon ChoiSergeyev SergeyBelonozhkin Alexander
    • Nam Yun KimYong Hee LeeYoung Bin ChoJae Yeon ChoiSergeyev SergeyBelonozhkin Alexander
    • H04Q5/22
    • G06K7/0008G06K7/10039G06K7/10069
    • A radio frequency identification tag includes an antenna terminal, a memory, a D/A converter, a clock extractor, a frequency synthesizer, a radio frequency UP converter, and a power unit. An energy pumping signal is received and tag identification information is transmitted through the antenna terminal. The tag identification information is stored in the memory. The D/A converter converts the tag identification information into an analog signal in response to an information request signal included in the energy pumping signal. The clock extractor extracts a clock signal from the energy pumping signal. The frequency synthesizer is operated according to the clock signal of the clock extractor, and generates a frequency. The radio frequency up converter up-converts a signal output from the D/A converter, and allows the up-converted signal to be transmitted through the antenna terminal. The power unit supplies internal power.
    • 射频识别标签包括天线端子,存储器,D / A转换器,时钟提取器,频率合成器,射频UP转换器和功率单元。 接收能量泵送信号,通过天线端子发送标签识别信息。 标签识别信息存储在存储器中。 D / A转换器响应于包括在能量抽取信号中的信息请求信号,将标签识别信息转换成模拟信号。 时钟提取器从能量抽取信号中提取时钟信号。 频率合成器根据时钟提取器的时钟信号进行工作,并产生频率。 射频上变频器对从D / A转换器输出的信号进行上变频,并允许上变频信号通过天线端子传输。 电源单元提供内部电源。