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49 条记录 (耗时 0.026 秒)

    Mixer
    31.
    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
    33.
    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。

    Communication apparatus and low noise amplifying method
    34.
    发明授权
    Communication apparatus and low noise amplifying method 有权
    通信设备和低噪声放大方法

    公开(公告)号：US08078126B2

    公开(公告)日：2011-12-13

    申请号：US11733401

    申请日：2007-04-10

    申请人： Jae-woo Park ,  Chang-sik Yoo ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim

    发明人： Jae-woo Park ,  Chang-sik Yoo ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H03G3/3036

    摘要： A communication apparatus and a low noise amplifying method. The communication apparatus includes a gain adjusting unit to adjust a gain of an input signal; a combiner to generate an output signal using the signal gain-adjusted at the gain adjusting unit; and a feedback unit which provides a feedback signal, which is generated using the output signal generated at the combiner, to an input stage. Accordingly, various frequency bands defined in the wireless standards can be supported. Since the load impedance is generated without resistance, the manufacturing cost and the product size can be reduced.

    摘要翻译： 通信装置和低噪声放大方法。 通信装置包括：增益调整单元，用于调节输入信号的增益; 组合器，用于使用在增益调整单元处调整的信号增益来产生输出信号; 以及反馈单元，其将使用在组合器处产生的输出信号生成的反馈信号提供给输入级。 因此，可以支持在无线标准中定义的各种频带。 由于无阻力地产生负载阻抗，因此可以降低制造成本和产品尺寸。

    RF filter and digital broadcast receiving tuner and RF signal processing device using RF filter
    35.
    发明授权
    RF filter and digital broadcast receiving tuner and RF signal processing device using RF filter 有权
    RF滤波器和数字广播接收调谐器以及使用射频滤波器的射频信号处理装置

    公开(公告)号：US07983639B2

    公开(公告)日：2011-07-19

    申请号：US11765479

    申请日：2007-06-20

    申请人： Kyu-don Choi ,  Choong-yul Cha ,  Heung-bae Lee

    发明人： Kyu-don Choi ,  Choong-yul Cha ,  Heung-bae Lee

    IPC分类号： H04B1/10 ,  H04B1/16

    CPC分类号： H04B15/06

    摘要： A radio frequency (RF) filter is provided which includes a band pass filter unit and an amplifying unit. If a signal having a frequency in a first band is input, the RF filter performs band pass filtering, and if a signal having a frequency in a second band is input, the RF filter performs an amplifying process. The RF filter can be used for various RF signal processing devices, such as digital broadcast receiving tuners.

    摘要翻译： 提供了一种包括带通滤波器单元和放大单元的射频（RF）滤波器。 如果输入了具有第一频带的频率的信号，则RF滤波器进行带通滤波，并且如果输入了具有第二频带的频率的信号，则RF滤波器进行放大处理。 RF滤波器可用于各种RF信号处理设备，例如数字广播接收调谐器。

    Mobile radio frequency identification (mRFID) reader
    36.
    发明授权
    Mobile radio frequency identification (mRFID) reader 有权
    移动射频识别（mRFID）阅读器

    公开(公告)号：US07825773B2

    公开(公告)日：2010-11-02

    申请号：US11702490

    申请日：2007-02-06

    申请人： Si-gyoung Koo ,  Woo-shik Kang ,  Heung-bae Lee

    发明人： Si-gyoung Koo ,  Woo-shik Kang ,  Heung-bae Lee

    IPC分类号： H04Q5/22 ,  G08B13/14 ,  H04B1/00 ,  H04B17/02 ,  H04B7/00

    CPC分类号： H04B1/408 ,  H04L27/0014

    摘要： A mobile radio frequency identification (mRFID) reader having a receiving circuit is provided. The receiving circuit includes a local oscillator which generates a carrier signal at a predetermined frequency band; a mixer which mixes a tag signal received from a tag with the carrier signal, to lower a frequency of the tag signal; a phase adjusting block which adjusts a phase of the carrier signal by determining a phase of the tag signal; and a control block which processes the tag signal through a series of operations, and controls an operation of the phase adjusting block to compensate for a phase delay of the tag signal according to an output of the processed tag signal. Because the mRFID reader can be provided as small as a half size of a related art reader, a mobile communication terminal accommodating the mRFID reader can be compact-sized. Additionally, because the number of components for the receiving circuit decreases, not only the power consumption but also the unit price can be reduced.

    摘要翻译： 提供具有接收电路的移动射频识别（mRFID）读取器。 所述接收电路包括以预定频带产生载波信号的本地振荡器; 混合器，其将从标签接收的标签信号与载波信号混合，以降低标签信号的频率; 相位调整块，通过确定标签信号的相位来调整载波信号的相位; 以及通过一系列操作来处理标签信号的控制块，并且控制相位调整块的操作，以根据处理的标签信号的输出来补偿标签信号的相位延迟。 由于mRFID读取器可以被提供为相关技术读取器的一半的尺寸，所以容纳mRFID读取器的移动通信终端可以是紧凑型的。 此外，由于接收电路的部件数量减少，所以不仅可以降低功耗，而且降低单价。

    RADIO COMMUNICATION APPARATUS AND FREQUENCY GENERATING METHOD THEREOF
    37.
    发明申请
    RADIO COMMUNICATION APPARATUS AND FREQUENCY GENERATING METHOD THEREOF 审中-公开
    无线电通信装置及其频率发生方法

    公开(公告)号：US20080113641A1

    公开(公告)日：2008-05-15

    申请号：US11734435

    申请日：2007-04-12

    申请人： Chan-young Jeong ,  Chang-sik Yoo ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim

    发明人： Chan-young Jeong ,  Chang-sik Yoo ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim

    IPC分类号： H04B1/26 ,  H04B15/00

    CPC分类号： H04B1/0082

    摘要： A radio communication apparatus and a frequency generating method thereof the communication apparatus including a frequency generator to generate a plurality of local oscillator (LO) frequencies; and a mixer to convert a frequency of an input signal by mixing the input signal with at least two of the LO frequencies generated by the frequency generator. As the LO frequencies are generated using the single VCO to support the radio communication standard of the multiple bands, the circuit area can be reduced and the multimode and multiband can be supported with one chip.

    摘要翻译： 一种无线电通信装置及其频率产生方法，该通信装置包括频率发生器以产生多个本地振荡器（LO）频率; 以及混频器，用于通过将输入信号与由频率发生器产生的至少两个LO频率进行混合来转换输入信号的频率。 由于使用单个VCO产生LO频率以支持多个频带的无线电通信标准，所以可以减少电路面积，并且可以通过一个芯片来支持多模和多频带。

    RFID reader and method for removing a transmission carrier leakage signal
    39.
    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。