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    • 1. 发明申请
    • APPARATUS AND METHOD FOR ACQUIRING INITIAL COEFFICIENT OF DECISION FEEDBACK EQUALIZER USING FAST FOURIER TRANSFORM
    • 使用快速傅立叶变换获取决策反馈均衡器的初始系数的装置和方法
    • US20100046599A1
    • 2010-02-25
    • US12515998
    • 2007-10-16
    • Dong-Kyoo KimJoo-Ho ParkKwang-Roh ParkYoung-Jin KangJae-Young Kim
    • Dong-Kyoo KimJoo-Ho ParkKwang-Roh ParkYoung-Jin KangJae-Young Kim
    • H04L27/01
    • H04L25/03159H04L25/0224H04L25/03057
    • Provided is an apparatus and method for acquiring an initial coefficient of a DFE using an FFT. The apparatus includes a channel impulse response estimating unit for estimating a non-causal impulse response by delaying a received signal of a time domain and transforming it into frequency domain signals; a feedforward filter coefficient acquisition unit for extracting a predetermined number of signals from the non-causal channel impulse response signals estimated by the channel impulse response estimating unit, and transforming the same into frequency domain signals to acquire an initial coefficient of a feedforward filter; and a feedback filter coefficient acquisition unit for transforming the non-causal channel impulse response signals estimated by the channel impulse response estimating unit into frequency domain signals, multiplying the same by the initial coefficient of the feedforward filter, and transforming the results of multiplication into time domain signals to calculate an initial coefficient of a feedback filter.
    • 提供了一种使用FFT获取DFE的初始系数的装置和方法。 该装置包括:信道脉冲响应估计单元,用于通过延迟时域的接收信号并将其变换成频域信号来估计非因果脉冲响应; 前馈滤波器系数获取单元,用于从由信道脉冲响应估计单元估计的非因果信道脉冲响应信号中提取预定数量的信号,并将其变换为频域信号以获取前馈滤波器的初始系数; 以及反馈滤波器系数获取单元,用于将由信道脉冲响应估计单元估计的非因果信道脉冲响应信号变换为频域信号,将其乘以前馈滤波器的初始系数,并将乘法结果变换为时间 域信号来计算反馈滤波器的初始系数。
    • 3. 发明申请
    • ULTRA-WIDEBAND PULSE GENERATOR AND METHOD THEREOF
    • 超宽带脉冲发生器及其方法
    • US20100046581A1
    • 2010-02-25
    • US12444881
    • 2007-06-26
    • Mi-Kyung OhJae-Young KimKwang-Roh Park
    • Mi-Kyung OhJae-Young KimKwang-Roh Park
    • H04B1/69
    • H04B1/7174
    • Provided is an ultra-wideband pulse generator using a digital scheme. The ultra-wideband pulse generator and a method for generating an ultra-wideband pulse therein can easily generate various ultra-wideband pulses having a random center frequency and bandwidth according to digital control schemes in a pulse-based ultra-wideband wireless communication system. The ultra-wideband pulse generator includes: a pulse waveform converting block for converting digital pulse waveform information on a desired ultra-wideband pulse into pulse waveform information having positive and negative signs; an unit pulse generating block for multiplying the converted pulse waveform information by a preset short-width pulse and amplifying the resulting pulses according to gain information of the desired ultra-wideband pulse; a pulse waveform arranging block for arranging the amplified pulses at predetermined delayed intervals; and a pulse waveform shaping block for summing the arranged pulses into a single pulse and integrating the single pulse to output the desired ultra-wideband pulse.
    • 提供了一种使用数字方案的超宽带脉冲发生器。 超宽带脉冲发生器和用于在其中产生超宽带脉冲的方法可以根据基于脉冲的超宽带无线通信系统中的数字控制方案容易地生成具有随机中心频率和带宽的各种超宽带脉冲。 超宽带脉冲发生器包括:脉冲波形转换块,用于将期望的超宽带脉冲上的数字脉冲波形信息转换为具有正和负符号的脉搏波形信息; 单位脉冲发生块,用于将经转换的脉搏波形信息乘以预置的短宽度脉冲,并根据期望的超宽带脉冲的增益信息放大所得到的脉冲; 用于以预定的延迟间隔排列放大的脉冲的脉搏波形排列块; 以及脉冲波形整形块,用于将排列的脉冲相加到单个脉冲中,并且对单个脉冲进行积分以输出期望的超宽带脉冲。
    • 4. 发明授权
    • Ultra-wideband pulse generator and method thereof
    • 超宽带脉冲发生器及其方法
    • US08204097B2
    • 2012-06-19
    • US12444881
    • 2007-06-26
    • Mi-Kyung OhJae-Young KimKwang-Roh Park
    • Mi-Kyung OhJae-Young KimKwang-Roh Park
    • H04B1/00H04L27/00
    • H04B1/7174
    • Provided is an ultra-wideband pulse generator using a digital scheme. The ultra-wideband pulse generator and a method for generating an ultra-wideband pulse therein can easily generate various ultra-wideband pulses having a random center frequency and bandwidth according to digital control schemes in a pulse-based ultra-wideband wireless communication system. The ultra-wideband pulse generator includes: a pulse waveform converting block for converting digital pulse waveform information on a desired ultra-wideband pulse into pulse waveform information having positive and negative signs; an unit pulse generating block for multiplying the converted pulse waveform information by a preset short-width pulse and amplifying the resulting pulses according to gain information of the desired ultra-wideband pulse; a pulse waveform arranging block for arranging the amplified pulses at predetermined delayed intervals; and a pulse waveform shaping block for summing the arranged pulses into a single pulse and integrating the single pulse to output the desired ultra-wideband pulse.
    • 提供了一种使用数字方案的超宽带脉冲发生器。 超宽带脉冲发生器和用于在其中产生超宽带脉冲的方法可以根据基于脉冲的超宽带无线通信系统中的数字控制方案容易地生成具有随机中心频率和带宽的各种超宽带脉冲。 超宽带脉冲发生器包括:脉冲波形转换块,用于将期望的超宽带脉冲上的数字脉冲波形信息转换为具有正和负符号的脉搏波形信息; 单位脉冲发生块,用于将经转换的脉搏波形信息乘以预置的短宽度脉冲,并根据期望的超宽带脉冲的增益信息放大所得到的脉冲; 用于以预定的延迟间隔排列放大的脉冲的脉搏波形排列块; 以及脉冲波形整形块,用于将排列的脉冲相加到单个脉冲中,并且对单个脉冲进行积分以输出期望的超宽带脉冲。
    • 5. 发明申请
    • PCB TYPE DUAL BAND PATCH ANTENNA AND WIRELESS COMMUNICATION MODULE INCORPORATING THE SAME PCB TYPE DUAL BAND PATCH ANTENNNA
    • PCB类型双带天线和无线通信模块并入相同的PCB类型双带天线天线
    • US20100090907A1
    • 2010-04-15
    • US12443083
    • 2007-07-04
    • Young-Joon KoJae-Young KimKwang-Roh Park
    • Young-Joon KoJae-Young KimKwang-Roh Park
    • H01Q1/38H01Q1/24
    • H01Q9/0407H01Q1/38H01Q5/357
    • The invention provides a PCB type dual band patch antenna and a wireless communication module incorporating the antenna. The antenna includes a substrate. A ground pattern is formed on the substrate. A radiating patch is formed on the substrate to be spaced apart from the ground pattern at a predetermined distance. The radiating patch includes an input arm and a main radiator which are divided by a slot with ‘L’ and inverse ‘L’ shapes combined. The main radiator has an open terminal opposing the input arm across the slot. Also, a feeding part is connected to the input arm of the radiating patch to apply an electrical signal to the radiating patch. Further, wireless devices are integrally mounted on the PCB substrate used for the antenna, thereby achieving a high efficiency and wide-bandwidth dual band patch antenna and a minimal-sized and low-cost wireless communication module.
    • 本发明提供了一种PCB型双频贴片天线和包含天线的无线通信模块。 天线包括基板。 在基板上形成接地图案。 辐射贴片形成在衬底上,以与预定距离的接地图案间隔开。 辐射贴片包括由“L”和“L”形组合的槽划分的输入臂和主辐射器。 主散热器有一个打开的端子,与输入臂相对的插槽相对。 此外,馈电部分连接到辐射贴片的输入臂,以向辐射贴片施加电信号。 此外,无线设备一体地安装在用于天线的PCB衬底上,从而实现高效率和宽带宽双频贴片天线以及最小尺寸和低成本的无线通信模块。
    • 7. 发明授权
    • PCB type dual band patch antenna and wireless communication module incorporating the same PCB type dual band patch antennna
    • PCB型双频贴片天线和无线通信模块,并入同一PCB类型的双频带贴片天线
    • US08044868B2
    • 2011-10-25
    • US12443083
    • 2007-07-04
    • Young-Joon KoJae-Young KimKwang-Roh Park
    • Young-Joon KoJae-Young KimKwang-Roh Park
    • H01Q1/24
    • H01Q9/0407H01Q1/38H01Q5/357
    • The invention provides a PCB type dual band patch antenna and a wireless communication module incorporating the antenna. The antenna includes a substrate. A ground pattern is formed on the substrate. A radiating patch is formed on the substrate to be spaced apart from the ground pattern at a predetermined distance. The radiating patch includes an input arm and a main radiator which are divided by a slot with ‘L’ and inverse ‘L’ shapes combined. The main radiator has an open terminal opposing the input arm across the slot. Also, a feeding part is connected to the input arm of the radiating patch to apply an electrical signal to the radiating patch. Further, wireless devices are integrally mounted on the PCB substrate used for the antenna, thereby achieving a high efficiency and wide-bandwidth dual band patch antenna and a minimal-sized and low-cost wireless communication module.
    • 本发明提供了一种PCB型双频贴片天线和包含天线的无线通信模块。 天线包括基板。 在基板上形成接地图案。 辐射贴片形成在衬底上,以与预定距离的接地图案间隔开。 辐射贴片包括由“L”和“L”形组合的槽划分的输入臂和主辐射器。 主散热器有一个打开的端子,与输入臂相对的插槽相对。 此外,馈电部分连接到辐射贴片的输入臂,以向辐射贴片施加电信号。 此外,无线设备一体地安装在用于天线的PCB衬底上,从而实现高效率和宽带宽双频贴片天线以及最小尺寸和低成本的无线通信模块。