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    • 2. 发明授权
    • Apparatus for receiving analog baseband signal
    • 用于接收模拟基带信号的装置
    • US08660510B2
    • 2014-02-25
    • US13696751
    • 2010-05-07
    • Seong-Jun SongSang-Yun HwangChul-Jin KimJong-Rim LeeHyun-Kuk ChoiSeok-Yong Lee
    • Seong-Jun SongSang-Yun HwangChul-Jin KimJong-Rim LeeHyun-Kuk ChoiSeok-Yong Lee
    • H04B1/06H04B1/16
    • H04B1/0014H04B13/005H04L27/0002
    • Provided is a receiving apparatus for processing an analog baseband signal in an information terminal that communicates using a dielectric. The receiving apparatus includes an electrode for receiving an electric-field signal; a first gain adjuster for gain adjustment by amplifying the received signal; a channel selection filter for selecting a signal corresponding to a receive channel bandwidth from the gain-adjusted signal; a second gain adjuster for gain adjustment by amplifying the selected signal; a comparator for converting a signal output from the second gain adjuster into a digital signal; an oversampler for oversampling the digital signal at a frequency fClock higher than a receive channel frequency fSignal; a demodulator for demodulating the oversampled signal; and a clock generator for providing necessary a clock signal to the oversampler and the demodulator.
    • 提供一种用于在使用电介质进行通信的信息终端中处理模拟基带信号的接收装置。 接收装置包括用于接收电场信号的电极; 用于通过放大接收信号来增益调整的第一增益调节器; 频道选择滤波器,用于从增益调整信号中选择与接收信道带宽对应的信号; 第二增益调节器,用于通过放大所选择的信号进行增益调整; 比较器,用于将从第二增益调节器输出的信号转换为数字信号; 过采样器,其以比接收信道频率fSignal高的频率fClock过采样数字信号; 解调器,用于解调过采样信号; 以及用于向过采样器和解调器提供必要的时钟信号的时钟发生器。
    • 4. 发明授权
    • Method and apparatus for signal detection in radio frequency identification system
    • 射频识别系统信号检测方法及装置
    • US08284032B2
    • 2012-10-09
    • US11946480
    • 2007-11-28
    • Jong-Rim LeeSang-Yun HwangChul-Jin KimJune-Hyeok ImHyun-Kuk ChoiChul-Hyun Park
    • Jong-Rim LeeSang-Yun HwangChul-Jin KimJune-Hyeok ImHyun-Kuk ChoiChul-Hyun Park
    • H04Q5/22
    • G06K7/0008H04B1/30H04B1/525
    • Disclosed is an apparatus and method for signal detection according to frequency bands used in an RFID system. The apparatus includes a low-noise amplifier for low-noise amplifying a received signal, a receiver unit for detecting a CW signal and a tag signal, a transmitter unit for frequency up-converting and outputting an input signal, a PLL for generating a frequency signal according to a transmission signal band or a reception signal band, a receiver unit switch for connecting the receiver unit with the low-noise amplifier or a directional coupler, an antennas switch for connecting the antenna with the directional coupler or low-noise amplifier, and a controller unit for controlling a frequency of the frequency signal generated by the PLL, turning off transmission power in a case of an LBT scheme, controlling the receiver unit switch and the antenna switch, and determining if a corresponding channel is an idle channel.
    • 公开了一种根据RFID系统中使用的频带进行信号检测的装置和方法。 该装置包括用于低噪声放大接收信号的低噪声放大器,用于检测CW信号的接收器单元和标签信号,用于对输入信号进行上变频和输出的发射器单元,用于产生频率的PLL 根据发送信号频带或接收信号频带的信号,用于将接收机单元与低噪声放大器或定向耦合器连接的接收机单元开关,用于将天线与定向耦合器或低噪声放大器连接的天线开关, 以及控制单元,用于控制由PLL产生的频率信号的频率,在LBT方案的情况下关闭发送功率,控制接收机单元切换和天线切换,以及确定对应的信道是否为空闲信道。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR SIGNAL DETECTION IN RADIO FREQUENCY IDENTIFICATION SYSTEM
    • 无线电频率识别系统中信号检测的方法与装置
    • US20080150700A1
    • 2008-06-26
    • US11946480
    • 2007-11-28
    • Jong-Rim LeeSang-Yun HwangChul-Jin KimJune-Hyeok ImHyun-Kuk ChoiChul-Hyun Park
    • Jong-Rim LeeSang-Yun HwangChul-Jin KimJune-Hyeok ImHyun-Kuk ChoiChul-Hyun Park
    • G06K7/00H04Q5/22
    • G06K7/0008H04B1/30H04B1/525
    • Disclosed is an apparatus and method for signal detection according to frequency bands used in an RFID system. The apparatus includes a low-noise amplifier for low-noise amplifying a received signal, a receiver unit for detecting a CW signal and a tag signal, a transmitter unit for frequency up-converting and outputting an input signal, a PLL for generating a frequency signal according to a transmission signal band or a reception signal band, a receiver unit switch for connecting the receiver unit with the low-noise amplifier or a directional coupler, an antennas switch for connecting the antenna with the directional coupler or low-noise amplifier, and a controller unit for controlling a frequency of the frequency signal generated by the PLL, turning off transmission power in a case of an LBT scheme, controlling the receiver unit switch and the antenna switch, and determining if a corresponding channel is an idle channel.
    • 公开了一种根据RFID系统中使用的频带进行信号检测的装置和方法。 该装置包括用于低噪声放大接收信号的低噪声放大器,用于检测CW信号的接收器单元和标签信号,用于对输入信号进行上变频和输出的发射器单元,用于产生频率的PLL 根据发送信号频带或接收信号频带的信号,用于将接收机单元与低噪声放大器或定向耦合器连接的接收机单元开关,用于将天线与定向耦合器或低噪声放大器连接的天线开关, 以及控制单元,用于控制由PLL产生的频率信号的频率,在LBT方案的情况下关闭发送功率,控制接收机单元切换和天线切换,以及确定对应的信道是否为空闲信道。
    • 8. 发明申请
    • APPARATUS FOR RECEIVING ANALOG BASEBAND SIGNAL
    • 用于接收模拟基带信号的装置
    • US20130052974A1
    • 2013-02-28
    • US13696751
    • 2010-05-07
    • Seong-Jun SongSang-Yun HwangChul-Jin KimJong-Rim LeeHyun-Kuk ChoiSeok-Yong Lee
    • Seong-Jun SongSang-Yun HwangChul-Jin KimJong-Rim LeeHyun-Kuk ChoiSeok-Yong Lee
    • H04B1/16
    • H04B1/0014H04B13/005H04L27/0002
    • Provided is a receiving apparatus for processing an analog baseband signal in an information terminal that communicates using a dielectric. The receiving apparatus includes an electrode for receiving an electric-field signal; a first gain adjuster for gain adjustment by amplifying the received signal; a channel selection filter for selecting a signal corresponding to a receive channel bandwidth from the gain-adjusted signal; a second gain adjuster for gain adjustment by amplifying the selected signal; a comparator for converting a signal output from the second gain adjuster into a digital signal; an oversampler for oversampling the digital signal at a frequency fClock higher than a receive channel frequency fSignal; a demodulator for demodulating the oversampled signal; and a clock generator for providing necessary a clock signal to the oversampler and the demodulator.
    • 提供一种用于在使用电介质进行通信的信息终端中处理模拟基带信号的接收装置。 接收装置包括用于接收电场信号的电极; 用于通过放大接收信号来增益调整的第一增益调节器; 频道选择滤波器,用于从增益调整信号中选择与接收信道带宽对应的信号; 第二增益调节器,用于通过放大所选择的信号进行增益调整; 比较器,用于将从第二增益调节器输出的信号转换为数字信号; 过采样器,其以比接收信道频率fSignal高的频率fClock过采样数字信号; 解调器,用于解调过采样信号; 以及用于向过采样器和解调器提供必要的时钟信号的时钟发生器。