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    RF receiver and method to receive, amplify, sample, down convert, anti-aliasing filter, and ADC convert an RF signal
    3.
    发明授权
    RF receiver and method to receive, amplify, sample, down convert, anti-aliasing filter, and ADC convert an RF signal 有权
    RF接收器和接收，放大，采样，降压转换，抗混叠滤波器和ADC转换RF信号的方法

    公开(公告)号：US08391822B2

    公开(公告)日：2013-03-05

    申请号：US12169073

    申请日：2008-07-08

    申请人： Hyung-sun Lim ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim ,  Sang-yoon Jeon ,  Ick-jin Kwon ,  Bum-man Kim ,  Chang-joon Park

    发明人： Hyung-sun Lim ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim ,  Sang-yoon Jeon ,  Ick-jin Kwon ,  Bum-man Kim ,  Chang-joon Park

    IPC分类号： H04B1/16

    CPC分类号： H04B1/28

    摘要： A radio frequency (RF) receiver and a method of receiving an RF signal are provided. The RF receiver includes a low-noise amplifying unit which amplifies a received signal while restricting out-of-band interference of the received signal, a sampling unit which performs sampling to convert the amplified signal to a discrete time domain signal, a frequency translation unit which down-converts the discrete time domain signal into a frequency band that enables the discrete time domain signal to be converted into a digital signal and restricts interference from a frequency within an aliasing band according to a sampling frequency, an anti-aliasing filtering unit which prevents aliasing from the down-converted signal, a clock unit which provides the sampling unit, the frequency translation unit, and the anti-aliasing filtering unit with sampling frequencies, and an analog-digital-converter which converts the converted signal into the digital signal.

    摘要翻译： 提供射频（RF）接收机和接收RF信号的方法。 RF接收机包括低噪声放大单元，其在限制接收信号的带外干扰的同时放大接收信号;执行采样以将放大信号转换为离散时域信号的采样单元;频率转换单元 其将离散时域信号下变频成使得离散时域信号能够被转换为数字信号的频带，并根据采样频率限制来自混叠频带内的频率的干扰;抗混叠滤波单元， 防止来自下变频信号的混叠，提供采样单元的时钟单元，频率转换单元和具有采样频率的抗混叠滤波单元，以及将转换的信号转换成数字信号的模数转换器 。

    RF RECEIVER AND METHOD OF RECEIVING RF SIGNAL
    4.
    发明申请
    RF RECEIVER AND METHOD OF RECEIVING RF SIGNAL 有权
    RF接收机和接收RF信号的方法

    公开(公告)号：US20090215421A1

    公开(公告)日：2009-08-27

    申请号：US12169073

    申请日：2008-07-08

    申请人： Hyung-sun LIM ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim ,  Sang-yoon Jeon ,  Ick-jin Kwon ,  Bum-man Kim ,  Chang-joon Park

    发明人： Hyung-sun LIM ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim ,  Sang-yoon Jeon ,  Ick-jin Kwon ,  Bum-man Kim ,  Chang-joon Park

    IPC分类号： H04B1/26

    CPC分类号： H04B1/28

    摘要： A radio frequency (RF) receiver and a method of receiving an RF signal are provided. The RF receiver includes a low-noise amplifying unit which amplifies a received signal while restricting out-of-band interferer of the received signal, a sampling unit which performs sampling to convert the amplified signal to a discrete time domain signal, a frequency translation unit which down-converts the sampled signal into a frequency band that enables the sampled signal to be converted into a digital signal and restricts interferer from a frequency within an aliasing band according to a sampling frequency, an anti-aliasing filtering unit which prevents aliasing from the down-converted signal, a clock unit which provides the sampling unit, the frequency translation unit, and the anti-aliasing filtering unit with sampling frequencies, and an analog-digital-converter which converts the converted signal into the digital signal.

    摘要翻译： 提供射频（RF）接收机和接收RF信号的方法。 RF接收机包括低噪声放大单元，其在限制接收信号的带外干扰的同时放大接收信号;采样单元，其执行采样以将放大的信号转换为离散时域信号;频率转换单元 其将采样信号下变频成使得采样信号能够被转换为数字信号的频带，并且根据采样频率来限制来自混叠频带内的频率的干扰源;抗混叠滤波单元，其防止来自 降频转换信号，提供采样单元的时钟单元，频率转换单元和具有采样频率的抗混叠滤波单元，以及将转换的信号转换为数字信号的模数转换器。

    Mixer
    5.
    发明授权
    Mixer 有权
    混合器

    公开(公告)号：US07711347B2

    公开(公告)日：2010-05-04

    申请号：US11414346

    申请日：2006-05-01

    申请人： Ick-jin Kwon ,  Yun-seong Eo ,  Heung-bae Lee

    发明人： Ick-jin Kwon ,  Yun-seong Eo ,  Heung-bae Lee

    IPC分类号： H04B1/28

    CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0084

    摘要： Provided is a mixer including: an amplifier amplifying an input signal using at least one amplifier element; a mixing unit mixing the input signal amplified by the amplifier with a local oscillator signal output from a local oscillator. The mixing unit includes at least one pair of switching elements switching the amplifier, and the switching elements are MOSFETs having gates and body nodes to which a same local oscillator signal is applied. Thus, a time required for turning on the switching elements can be reduced, and 1/f noise is also reduced. Also, an overdrive voltage can be increased with respect to local oscillator signals having an identical intensity. Thus, a relatively low voltage operation can be performed.

    摘要翻译： 提供一种混频器，包括：使用至少一个放大器元件放大输入信号的放大器; 混合单元将由放大器放大的输入信号与从本地振荡器输出的本地振荡器信号进行混合。 混合单元包括至少一对开关放大器的开关元件，并且开关元件是具有施加相同本地振荡器信号的门和体节点的MOSFET。 因此，可以减少接通开关元件所需的时间，并且还可以降低1 / f噪声。 此外，相对于具有相同强度的本机振荡器信号，可以增加过驱动电压。 因此，可以执行相对低的电压操作。

    Mixer
    6.
    发明申请
    Mixer 有权
    混合器

    公开(公告)号：US20070004369A1

    公开(公告)日：2007-01-04

    申请号：US11414346

    申请日：2006-05-01

    申请人： Ick-jin Kwon ,  Yun-seong Eo ,  Heung-bae Lee

    发明人： Ick-jin Kwon ,  Yun-seong Eo ,  Heung-bae Lee

    IPC分类号： H04B1/26

    CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0084

    摘要： Provided is a mixer including: an amplifier amplifying an input signal using at least one amplifier element; a mixing unit mixing the input signal amplified by the amplifier with a local oscillator signal output from a local oscillator. The mixing unit includes at least one pair of switching elements switching the amplifier, and the switching elements are MOSFETs having gates and body nodes to which a same local oscillator signal is applied. Thus, a time required for turning on the switching elements can be reduced, and 1/f noise is also reduced. Also, an overdrive voltage can be increased with respect to local oscillator signals having an identical intensity. Thus, a relatively low voltage operation can be performed.

    摘要翻译： 提供一种混频器，包括：使用至少一个放大器元件放大输入信号的放大器; 混合单元将由放大器放大的输入信号与从本地振荡器输出的本地振荡器信号进行混合。 混合单元包括至少一对开关放大器的开关元件，并且开关元件是具有施加相同本地振荡器信号的门和体节点的MOSFET。 因此，可以减少接通开关元件所需的时间，并且还可以降低1 / f噪声。 此外，相对于具有相同强度的本机振荡器信号，可以增加过驱动电压。 因此，可以执行相对低的电压操作。

    Buffer amplifier
    7.
    发明授权
    Buffer amplifier 有权
    缓冲放大器

    公开(公告)号：US07358810B2

    公开(公告)日：2008-04-15

    申请号：US11438222

    申请日：2006-05-23

    申请人： Ick-jin Kwon ,  Seong-sik Song ,  Yun-seong Eo ,  Heung-bae Lee

    发明人： Ick-jin Kwon ,  Seong-sik Song ,  Yun-seong Eo ,  Heung-bae Lee

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45183 ,  H03F2203/45336 ,  H03F2203/45362 ,  H03F2203/45508 ,  H03F2203/45638 ,  H03F2203/45702

    摘要： A buffer amplifier, which includes a first differential signal amplifier including first and second NMOSFETs (N-type metal-oxide semiconductor field-effect transistors) amplifying differential input signals; a second differential signal amplifier including first and second PMOSFETs (P-type metal-oxide semiconductor field-effect transistors) amplifying the differential input signals; a first feedback resistor including an end commonly connected to drains of the first NMOSFET and the first PMOSFET and the other end commonly connected to gates of the first NMOSFET and the first PMOSFET; a second feedback resistor including an end commonly connected to drains of the second NMOSFET and the second PMOSFET and the other end commonly connected to gates of the second NMOSFET and the second PMOSFET; and a current source providing a bias current for driving the first and second differential signal amplifiers, is provided.

    摘要翻译： 一种缓冲放大器，包括：第一差分信号放大器，包括放大差分输入信号的第一和第二NMOSFET（N型金属氧化物半导体场效应晶体管）; 包括放大差分输入信号的第一和第二PMOSFET（P型金属氧化物半导体场效应晶体管）的第二差分信号放大器; 第一反馈电阻器，其包括公共连接到第一NMOSFET和第一PMOSFET的漏极的端部，另一端公共连接到第一NMOSFET和第一PMOSFET的栅极; 第二反馈电阻器，其包括公共连接到第二NMOSFET和第二PMOSFET的漏极的端部，另一端公共连接到第二NMOSFET和第二PMOSFET的栅极; 并且提供了提供用于驱动第一和第二差分信号放大器的偏置电流的电流源。

    Buffer amplifier
    8.
    发明申请
    Buffer amplifier 有权
    缓冲放大器

    公开(公告)号：US20070001760A1

    公开(公告)日：2007-01-04

    申请号：US11438222

    申请日：2006-05-23

    申请人： Ick-jin Kwon ,  Seong-sik Song ,  Yun-seong Eo ,  Heung-bae Lee

    发明人： Ick-jin Kwon ,  Seong-sik Song ,  Yun-seong Eo ,  Heung-bae Lee

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45183 ,  H03F2203/45336 ,  H03F2203/45362 ,  H03F2203/45508 ,  H03F2203/45638 ,  H03F2203/45702

    摘要： A buffer amplifier, which includes a first differential signal amplifier including first and second NMOSFETs (N-type metal-oxide semiconductor field-effect transistors) amplifying differential input signals; a second differential signal amplifier including first and second PMOSFETs (P-type metal-oxide semiconductor field-effect transistors) amplifying the differential input signals; a first feedback resistor including an end commonly connected to drains of the first NMOSFET and the first PMOSFET and the other end commonly connected to gates of the first NMOSFET and the first PMOSFET; a second feedback resistor including an end commonly connected to drains of the second NMOSFET and the second PMOSFET and the other end commonly connected to gates of the second NMOSFET and the second PMOSFET; and a current source providing a bias current for driving the first and second differential signal amplifiers, is provided.

    摘要翻译： 一种缓冲放大器，包括：第一差分信号放大器，包括放大差分输入信号的第一和第二NMOSFET（N型金属氧化物半导体场效应晶体管）; 包括放大差分输入信号的第一和第二PMOSFET（P型金属氧化物半导体场效应晶体管）的第二差分信号放大器; 第一反馈电阻器，其包括公共连接到第一NMOSFET和第一PMOSFET的漏极的端部，另一端公共连接到第一NMOSFET和第一PMOSFET的栅极; 第二反馈电阻器，其包括公共连接到第二NMOSFET和第二PMOSFET的漏极的端部，另一端公共连接到第二NMOSFET和第二PMOSFET的栅极; 并且提供了提供用于驱动第一和第二差分信号放大器的偏置电流的电流源。

    RFID reader and method for removing a transmission carrier leakage signal
    9.
    发明授权
    RFID reader and method for removing a transmission carrier leakage signal 有权
    RFID读写器和去除传输载波泄漏信号的方法

    公开(公告)号：US08120464B2

    公开(公告)日：2012-02-21

    申请号：US11634099

    申请日：2006-12-06

    申请人： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

    发明人： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

    IPC分类号： G08B21/00

    CPC分类号： G06K7/0008 ,  H04B1/525 ,  H04B1/59

    摘要： 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.

    摘要翻译： 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。

    RFID reader and method for removing a transmission carrier leakage signal
    10.
    发明申请
    RFID reader and method for removing a transmission carrier leakage signal 有权
    RFID读写器和去除传输载波泄漏信号的方法

    公开(公告)号：US20070194886A1

    公开(公告)日：2007-08-23

    申请号：US11634099

    申请日：2006-12-06

    申请人： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

    发明人： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

    IPC分类号： H04Q5/22

    CPC分类号： G06K7/0008 ,  H04B1/525 ,  H04B1/59

    摘要： 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.

    摘要翻译： 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。