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    • 22. 发明授权
    • Predistortion apparatuses and methods
    • 预失真装置和方法
    • US08704595B2
    • 2014-04-22
    • US13331377
    • 2011-12-20
    • Young-Hoon KimGweon Do JoJung Hoon OhJae Ho Jung
    • Young-Hoon KimGweon Do JoJung Hoon OhJae Ho Jung
    • H03F1/26
    • H03F1/3247H03F1/3258H03F2201/3209H03F2201/3212H03F2201/3224
    • Provided is a predistortion apparatus which performs predistortion by reflecting a memory effect when linearizing an output of a nonlinear device using a wideband signal. The predistortion apparatus includes a predistortion unit and a coefficient extraction unit. The predistortion unit selects and outputs one of outputs of the sub-predistorters as an output signal according to intensity of an input signal. The coefficient extraction unit selects one of a plurality of coefficient extractors according to intensity of a nonlinear signal which is generated in response to the output signal, extracts a plurality of predistortion coefficients with the nonlinear signal and the output signal, and delivers the extracted predistortion coefficients to the predistortion unit. Accordingly, the memory effect is reflected even when the input signal is a wideband signal.
    • 提供一种预失真装置,其通过使用宽带信号线性化非线性装置的输出来反映存储器效应来执行预失真。 预失真装置包括预失真单元和系数提取单元。 预失真单元根据输入信号的强度选择并输出副预失真器的输出之一作为输出信号。 系数提取单元根据输出信号产生的非线性信号的强度,选择多个系数提取器中的一个,用非线性信号和输出信号提取多个预失真系数,并将提取的预失真系数 到预失真单位。 因此,即使当输入信号是宽带信号时也会反映存储效应。
    • 24. 发明授权
    • Method of storing data in a personal information terminal
    • 在个人信息终端中存储数据的方法
    • US07747948B2
    • 2010-06-29
    • US10036378
    • 2002-01-07
    • Jae Ho Jung
    • Jae Ho Jung
    • G06F17/30G06F3/048
    • G06F17/30569
    • A method of storing all or part of data entered to an application program embedded in a personal data assistant to another application program is disclosed. A data storing method includes composing data in one of a plurality of application programs embedded in the personal data assistant, wherein the application programs have mutually different data formats, converting a format of the composed data to a suitable format for another application program manually or automatically, and storing the format-converted data in the other application program.
    • 公开了将输入到嵌入在个人数据助理中的应用程序的全部或部分数据存储到另一应用程序的方法。 一种数据存储方法,包括将嵌入在个人数据助理中的多个应用程序之一中的数据组成数据,其中应用程序具有相互不同的数据格式,将编译数据的格式手动或自动地转换为另一应用程序的合适格式 并将格式转换的数据存储在另一个应用程序中。
    • 25. 发明申请
    • Homogeneous Catalyst System For Producing Ethylene Homopolymer or Ethylene Copolymers With Alpha-Olefins
    • 用α-烯烃生产乙烯均聚物或乙烯共聚物的均相催化剂体系
    • US20080262174A1
    • 2008-10-23
    • US12065974
    • 2006-09-08
    • Tae Woo WooMyung Ahn OkJong Sok HahnSang Ook KangJae Ho Jung
    • Tae Woo WooMyung Ahn OkJong Sok HahnSang Ook KangJae Ho Jung
    • C08F4/76C07F7/02B01J31/14B01J31/02
    • C08F10/02C08F4/65908C08F4/65912C08F210/16C08F2420/02C08F4/6592C08F210/14C08F2500/04C08F2500/03
    • Disclosed is a homogeneous catalyst system for producing an ethylene homopolymer or an ethylene copolymer with α-olefin. Specifically, this invention pertains to a transition metal catalyst which has stability under high temperature solution polymerization at 120˜250° C., in which a cyclopentadiene derivative and an electron donating substituent, both of which are bonded to a Group IV transition metal acting as a central metal, are crosslinked through a silyl derivative substituted with a cyclohexyl, to a catalyst system including such a transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and to a method of producing an ethylene homopolymer or an ethylene copolymer with α-olefin, having high molecular weight, using the catalyst system under conditions of high-temperature solution polymerization. The catalyst according to this invention has excellent thermal stability and compatibility with a paraffin hydrocarbon solvent and thus is effective in the production of an ethylene homopolymer or an ethylene copolymer with α-olefin having various properties in commercial polymerization processes.
    • 公开了一种用α-烯烃生产乙烯均聚物或乙烯共聚物的均相催化剂体系。 具体地说,本发明涉及在120〜250℃的高温溶液聚合下具有稳定性的过渡金属催化剂,其中环戊二烯衍生物和给电子取代基都与IV族过渡金属键合,作为 中间金属通过由环己基取代的甲硅烷基衍生物交联到包括这种过渡金属催化剂和铝氧烷助催化剂或硼化合物助催化剂的催化剂体系中,以及制备乙烯均聚物或乙烯共聚物的方法,其中α α-烯烃,具有高分子量,在高温溶液聚合条件下使用催化剂体系。 根据本发明的催化剂具有优异的热稳定性和与链烷烃溶剂的相容性,因此在商业聚合方法中与α-烯烃的各种性质的乙烯均聚物或乙烯共聚物的制备是有效的。
    • 26. 发明授权
    • Calibration apparatus of adaptive array antenna and calibration method thereof
    • 自适应阵列天线校准装置及其校准方法
    • US06480153B1
    • 2002-11-12
    • US09995838
    • 2001-11-29
    • Jae Ho JungHyeong Geon ParkHyun Seo OhMun Geon Kyeong
    • Jae Ho JungHyeong Geon ParkHyun Seo OhMun Geon Kyeong
    • H01Q322
    • H01Q3/267
    • The present invention utilizes a calibration signal weight vector as a response vector corresponding to a predetermined orientation angle of the antenna, thereby reducing an interference signal and enhancing a data communication effectively. The calibration method of an array antenna begins with generating a calibration signal in order to measure a transfer function of an array receiving means. A calibration signal vector is injected into the array receiver/transmitter, after multiplying a divided calibration signal and a predetermined weight vector corresponding to each channel together. The divided calibration signal is obtained by dividing the calibration signal by total number of channels. A calibration coefficient is obtained by using that the transfer function of each channel is estimated by analyzing the signal injected from the array receiver or transmitter. Finally, an interference signal is eliminated, by multiplying the received signal of a baseband and the calibration coefficient together.
    • 本发明利用校准信号权重向量作为与天线的预定取向角对应的响应向量,从而有效地减少干扰信号和增强数据通信。 阵列天线的校准方法从生成校准信号开始,以测量阵列接收装置的传递函数。 在将分割的校准信号和对应于每个通道的预定权重向量相乘之后,将校准信号向量注入到阵列接收器/发射器中。 分频校准信号通过将校准信号除以总信道数获得。 通过使用通过分析从阵列接收器或发射器注入的信号来估计每个通道的传递函数来获得校准系数。 最后,通过将基带的接收信号和校准系数相乘来消除干扰信号。
    • 27. 发明授权
    • Method of measuring error vector magnitude
    • 测量误差矢量幅度的方法
    • US08798124B2
    • 2014-08-05
    • US13614130
    • 2012-09-13
    • Sung Jun LeeYoung-Hoon KimJae Ho Jung
    • Sung Jun LeeYoung-Hoon KimJae Ho Jung
    • H04B3/46H04B17/00H04Q1/20
    • H04L25/0232H04B17/21H04L5/0048
    • A method of checking an error vector magnitude of transmitter in accordance with some embodiments of the inventive concept may include dividing a transmission baseband signal which the transmitter transmits into a plurality of processing units; performing a transmitter function and an ideal receiver function with respect to each of the plurality of processing units; generating a reception baseband signal by recombining a processing result of each of the plurality of processing units; and calculating an error vector magnitude (EVM) by comparing the transmission baseband signal with the reception baseband signal. A simplified method of checking an error vector magnitude of transmitter in accordance with some embodiments of the inventive concept may include generating symbols composed of only pilots; generating symbol composed of only data; and checking an error vector magnitude (EVM) using the all the symbols.
    • 根据本发明构思的一些实施例的检查发射机的误差向量幅度的方法可以包括将发射机发送的发射基带信号划分成多个处理单元; 针对所述多个处理单元中的每一个执行发送功能和理想的接收功能; 通过重新组合多个处理单元中的每一个的处理结果来产生接收基带信号; 以及通过将所述发送基带信号与所述接收基带信号进行比较来计算误差向量幅度(EVM)。 根据本发明构思的一些实施例,检查发射机的误差矢量幅度的简化方法可以包括产生仅由导频组成的符号; 生成仅由数据组成的符号; 并使用所有符号检查误差矢量幅度(EVM)。
    • 29. 发明授权
    • Amplifier structure and amplification method thereof
    • 放大器结构及其放大方法
    • US08521104B2
    • 2013-08-27
    • US13335481
    • 2011-12-22
    • Sung Jun LeeJae Ho Jung
    • Sung Jun LeeJae Ho Jung
    • H04B1/04
    • H03F3/24H03F3/217H03F2200/331
    • Provided is an amplifier structure. The amplifier structure includes a delta-sigma modulator, an up converter, a power amplifier, and a band-pass filter. The delta-sigma modulator receives an IF signal to delta-sigma modulate the IF signal. The up converter up-converts a frequency of the delta-sigma modulated signal with an LO signal. The power amplifier amplifies a power of the up-converted signal. The band-pass filter filters the amplified signal of a selected band. The amplifier structure performs the delta-sigma modulation operation on an IF input signal, and thus can considerably decrease a delta-sigma modulation operation speed compared to a typical amplifier structure and moderate the specification in implementing a power amplifier.
    • 提供了放大器结构。 放大器结构包括Δ-Σ调制器,上变频器,功率放大器和带通滤波器。 Δ-Σ调制器接收IF信号到Δ-Σ调制IF信号。 上变频器用LO信号上变频Δ-Σ调制信号的频率。 功率放大器放大上变频信号的功率。 带通滤波器对所选频带的放大信号进行滤波。 放大器结构对IF输入信号执行Δ-Σ调制操作,因此与典型的放大器结构相比可以显着地降低Δ-Σ调制操作速度,并适度实现功率放大器的规范。
    • 30. 发明授权
    • Homogeneous catalyst system for producing ethylene homopolymer or ethylene copolymers with alpha-olefins
    • 用于生产乙烯均聚物或乙烯与α-烯烃共聚物的均相催化剂体系
    • US07985817B2
    • 2011-07-26
    • US12065974
    • 2006-09-08
    • Tae Woo WooMyung Ahn OkJong Sok HahnSang Ook KangJae Ho Jung
    • Tae Woo WooMyung Ahn OkJong Sok HahnSang Ook KangJae Ho Jung
    • C08F4/52C08F4/64C08F4/76B01J31/14B01J31/38
    • C08F10/02C08F4/65908C08F4/65912C08F210/16C08F2420/02C08F4/6592C08F210/14C08F2500/04C08F2500/03
    • Disclosed is a homogeneous catalyst system for producing an ethylene homopolymer or an ethylene copolymer with α-olefin. Specifically, this invention pertains to a transition metal catalyst which has stability under high temperature solution polymerization at 120˜250° C., in which a cyclopentadiene derivative and an electron donating substituent, both of which are bonded to a Group IV transition metal acting as a central metal, are crosslinked through a silyl derivative substituted with a cyclohexyl, to a catalyst system including such a transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and to a method of producing an ethylene homopolymer or an ethylene copolymer with α-olefin, having high molecular weight, using the catalyst system under conditions of high-temperature solution polymerization. The catalyst according to this invention has excellent thermal stability and compatibility with a paraffin hydrocarbon solvent and thus is effective in the production of an ethylene homopolymer or an ethylene copolymer with α-olefin having various properties in commercial polymerization processes.
    • 公开了一种用于生产乙烯均聚物或与α-烯烃的乙烯共聚物的均相催化剂体系。 具体地说,本发明涉及在120〜250℃下在高温溶液聚合下具有稳定性的过渡金属催化剂,其中环戊二烯衍生物和给电子取代基都与IV族过渡金属键合,作为 中间金属通过由环己基取代的甲硅烷基衍生物与包含这种过渡金属催化剂和铝氧烷助催化剂或硼化合物助催化剂的催化剂体系交联,以及制备乙烯均聚物或乙烯共聚物的方法,其中α α-烯烃,具有高分子量,在高温溶液聚合条件下使用催化剂体系。 根据本发明的催化剂具有优异的热稳定性和与链烷烃溶剂的相容性,因此在商业聚合方法中与具有各种性能的α-烯烃一起生产乙烯均聚物或乙烯共聚物是有效的。