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    • 7. 发明授权
    • RFID reader and method for removing a transmission carrier leakage signal
    • RFID读写器和去除传输载波泄漏信号的方法
    • US08120464B2
    • 2012-02-21
    • US11634099
    • 2006-12-06
    • Hee-mun BangYun-seong EoIck-jin KwonHeung-bae Lee
    • Hee-mun BangYun-seong EoIck-jin KwonHeung-bae Lee
    • G08B21/00
    • G06K7/0008H04B1/525H04B1/59
    • A radio frequency identification (RFID) reader is provided, having a transmitting circuit that generates a transmitted signal to operate an RFID tag, a receiving circuit that receives a received signal including a tag signal from the RFID tag and a transmission carrier leakage signal leaking from the transmitting circuit, and a leakage removing circuit that senses a phase and amplitude of the transmission carrier leakage signal inputted to the receiving circuit, converts the transmitted signal from the transmitting circuit into a signal having a phase opposite to that of the transmission carrier leakage signal and an amplitude equal to that of the transmission carrier leakage signal, and synthesizes the converted signal and the received signal inputted to the receiving circuit.
    • 提供了一种射频识别(RFID)读取器,其具有产生用于操作RFID​​标签的发送信号的发送电路,接收来自RFID标签的包含标签信号的接收信号的接收电路以及从RFID标签泄漏的发送载波泄漏信号 发送电路和检测输入到接收电路的传输载波泄漏信号的相位和幅度的泄漏消除电路将来自发送电路的发送信号转换成具有与发送载波泄漏信号相反的相位的信号 振幅等于发射载波泄漏信号的振幅,并将转换的信号和输入到接收电路的接收信号合成。
    • 8. 发明申请
    • RFID reader and method for removing a transmission carrier leakage signal
    • RFID读写器和去除传输载波泄漏信号的方法
    • US20070194886A1
    • 2007-08-23
    • US11634099
    • 2006-12-06
    • Hee-mun BangYun-seong EoIck-jin KwonHeung-bae Lee
    • Hee-mun BangYun-seong EoIck-jin KwonHeung-bae Lee
    • H04Q5/22
    • G06K7/0008H04B1/525H04B1/59
    • A radio frequency identification (RFID) reader is provided, having a transmitting circuit that generates a transmitted signal to operate an RFID tag, a receiving circuit that receives a received signal including a tag signal from the RFID tag and a transmission carrier leakage signal leaking from the transmitting circuit, and a leakage removing circuit that senses a phase and amplitude of the transmission carrier leakage signal inputted to the receiving circuit, converts the transmitted signal from the transmitting circuit into a signal having a phase opposite to that of the transmission carrier leakage signal and an amplitude equal to that of the transmission carrier leakage signal, and synthesizes the converted signal and the received signal inputted to the receiving circuit.
    • 提供了一种射频识别(RFID)读取器,其具有产生用于操作RFID​​标签的发送信号的发送电路,接收来自RFID标签的包含标签信号的接收信号的接收电路以及从RFID标签泄漏的发送载波泄漏信号 发送电路和检测输入到接收电路的传输载波泄漏信号的相位和幅度的泄漏消除电路将来自发送电路的发送信号转换成具有与发送载波泄漏信号相反的相位的信号 振幅等于发射载波泄漏信号的振幅,并将转换的信号和输入到接收电路的接收信号合成。
    • 9. 发明申请
    • Variable inductance applying device using variable capacitor and variable frequency generating device thereof
    • 使用可变电容器的可变电感施加装置及其变频发生装置
    • US20060197622A1
    • 2006-09-07
    • US11360525
    • 2006-02-24
    • Yun-seong EoKwang-du LeeHeung-bae Lee
    • Yun-seong EoKwang-du LeeHeung-bae Lee
    • H03B5/08
    • H03B5/08H03J3/20
    • Disclosed is a variable inductance applying device using a variable capacitor, and a variable frequency generating device thereof. The variable inductance applying device includes: a first inductor whose both terminals are connected to an inductance applying terminal applying inductance to an external circuit; a second inductor inductively coupled to the first inductor; and a variable capacitor connected to both terminals of the second inductor, which varies inductance from the inductance applying terminal by changing capacitance. Therefore, the inductance to be applied to the external circuit can be varied by changing the capacitance of the variable capacitor. Since the variable capacitor rarely contains a resistance component, energy loss due to the resistance component hardly occurs. As a result, the variable inductance applying device has a high value of Q.
    • 公开了一种使用可变电容器的可变电感施加装置及其可变频率发生装置。 可变电感施加装置包括:第一电感器,其两个端子连接到电感施加端子,将电感施加到外部电路; 电感耦合到第一电感器的第二电感器; 以及连接到第二电感器的两个端子的可变电容器,其通过改变电容来改变来自电感施加端子的电感。 因此,可以通过改变可变电容器的电容来改变施加到外部电路的电感。 由于可变电容器很少包含电阻分量,所以几乎不发生由电阻分量引起的能量损失。 结果,可变电感施加装置具有高的Q值。
    • 10. 发明申请
    • Variable Inductance Applying Device Using Variable Capacitor and Variable Frequency Generating Device Thereof
    • 可变电感应用可变电容器和变频发生器件的设备
    • US20090096557A1
    • 2009-04-16
    • US12333540
    • 2008-12-12
    • Yun-seong EoKwang-du LeeHeung-bae Lee
    • Yun-seong EoKwang-du LeeHeung-bae Lee
    • H03J3/22
    • H03B5/08H03J3/20
    • Disclosed is a variable inductance applying device using a variable capacitor, and a variable frequency generating device thereof. The variable inductance applying device includes: a first inductor whose both terminals are connected to an inductance applying terminal applying inductance to an external circuit; a second inductor inductively coupled to the first inductor; and a variable capacitor connected to both terminals of the second inductor, which varies inductance from the inductance applying terminal by changing capacitance. Therefore, the inductance to be applied to the external circuit can be varied by changing the capacitance of the variable capacitor. Since the variable capacitor rarely contains a resistance component, energy loss due to the resistance component hardly occurs. As a result, the variable inductance applying device has a high value of Q.
    • 公开了一种使用可变电容器的可变电感施加装置及其可变频率发生装置。 可变电感施加装置包括:第一电感器,其两个端子连接到电感施加端子,将电感施加到外部电路; 电感耦合到第一电感器的第二电感器; 以及连接到第二电感器的两个端子的可变电容器,其通过改变电容来改变来自电感施加端子的电感。 因此,可以通过改变可变电容器的电容来改变施加到外部电路的电感。 由于可变电容器很少包含电阻分量,所以几乎不发生由电阻分量引起的能量损失。 结果,可变电感施加装置具有高的Q值。