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    • 55. 发明授权
    • Analog correlator for very high speed data communication
    • 用于非常高速数据通信的模拟相关器
    • US07606338B2
    • 2009-10-20
    • US11357998
    • 2006-02-22
    • Young-hwan KimHak-sun KimChang-seok LeeKwy-ro LeeSeong-soo Lee
    • Young-hwan KimHak-sun KimChang-seok LeeKwy-ro LeeSeong-soo Lee
    • H03D1/00H03H7/18
    • H04B1/709H04B1/7093
    • An analog correlator for very high speed data communication, including a single transmission line receiving an input signal and used as a signal delay circuit, a plurality of analog multipliers connected in parallel with a predetermined gap from the transmission line, for receiving a predetermined size of voltages, respectively, and an adder for adding the signals from the plurality of analog multipliers and transmitting the resultant signal as an output signal. The analog correlator can perform very high speed data communication, and can be applied to a high precision position estimation system. Moreover, the time delay is controlled in each part of the transmission line by adjusting a size of a variable capacitor. As a result, the length of the transmission line can be adjusted. Furthermore, the correlator is adaptively used according to variations of the very high speed communication environment by adjusting voltages of application voltage devices.
    • 一种用于非常高速数据通信的模拟相关器,包括接收输入信号并用作信号延迟电路的单个传输线,多个模拟乘法器,与来自传输线的预定间隙并联连接,用于接收预定大小的 电压,以及用于将来自多个模拟乘法器的信号相加并将结果信号作为输出信号发送的加法器。 模拟相关器可以执行非常高速的数据通信,并且可以应用于高精度位置估计系统。 此外,通过调整可变电容器的尺寸,在传输线的每个部分中控制时间延迟。 结果,可以调节传输线的长度。 此外,通过调整施加电压装置的电压,根据非常高速的通信环境的变化自适应地使用相关器。
    • 56. 发明授权
    • Method and apparatus for measuring distance using low clock rate signal
    • 使用低时钟速率信号测量距离的方法和装置
    • US07518546B2
    • 2009-04-14
    • US11369724
    • 2006-03-08
    • Jae-hyon KimYoung-hwan KimDmitriev S. AlexanderAndreyev V. YuriSeong-soo Lee
    • Jae-hyon KimYoung-hwan KimDmitriev S. AlexanderAndreyev V. YuriSeong-soo Lee
    • G01S13/08
    • G01S13/76
    • Provided is an apparatus and a method of measuring a distance between devices using a low clock frequency signal. The apparatus includes clock frequency generators, counters, a controller and a calculator for determining the distance based on clock signal overlap. Radio waves are transmitted and a number of clocks of a clock signal having a clock frequency b are counted, and if the transmitted radio waves are received again, a number of clocks of a clock signal having a clock frequency a are counted. If the clock signals having the clock frequencies a and b overlap with each other, counting of the numbers of the clocks of the clock signals having the frequencies b and a stops, and the distance is measured using the count values of the clock signals having the clock frequencies a and b. As a result, number of clocks of clock signals having low clock frequencies with a uniform difference can be counted to precisely measure a distance.
    • 提供了使用低时钟频率信号来测量设备之间的距离的装置和方法。 该装置包括时钟频率发生器,计数器,控制器和用于基于时钟信号重叠确定距离的计算器。 对无线电波进行发送,对具有时钟频率b的时钟信号的时钟数进行计数,并且如果再次接收到发送的无线电波,则对具有时钟频率a的时钟信号的时钟数进行计数。 如果具有时钟频率a和b的时钟信号彼此重叠,则具有频率b和a的时钟信号的时钟数的计数停止,并且使用具有频率b和a的时钟信号的计数值来测量距离 时钟频率a和b。 结果,可以计数具有均匀差的具有低时钟频率的时钟信号的时钟数,以精确地测量距离。
    • 57. 发明申请
    • METHOD AND APPARATUS FOR ANALYZING CIRCUIT MODEL BY REDUCTION AND COMPUTER PROGRAM PRODUCT FOR ANALYZING THE CIRCUIT MODEL
    • 用于分析电路模型分析电路模型的方法和装置以及用于分析电路模型的计算机程序产品
    • US20080209366A1
    • 2008-08-28
    • US12027732
    • 2008-02-07
    • Hong Bo CheYoung Hwan Kim
    • Hong Bo CheYoung Hwan Kim
    • G06F17/50
    • G06F17/5036G06F2217/78
    • Provided are a method and apparatus for analyzing a circuit model by reducing, and a computer program product for analyzing the circuit model. The circuit model at least includes independent current source models, resistance models, and capacitance models. Also, the circuit model forms a resistance capacitance (RC) network with independent current sources. The method includes selecting a node to be removed using resistance information and comparing conductance of a capacitor for a given time step and the total conductance of the node. Further, the method includes removing the selected nodes and generating RC elements and independent current sources using adjacent nodes, which maintain the accuracy of node voltages of a circuit reduced in an accuracy order used for entrywise perturbation of the corresponding circuit equation. Moreover, an efficient method of handling the independent current sources while reducing the circuit is provided.
    • 提供了一种通过减少电路模型分析的方法和装置,以及用于分析电路模型的计算机程序产品。 电路模型至少包括独立的电流源模型,电阻模型和电容模型。 此外,电路模型形成具有独立电流源的电阻电容(RC)网络。 该方法包括使用电阻信息来选择要去除的节点,并且比较给定时间步长的电容器的电导率和节点的总电导率。 此外,该方法包括使用相邻节点去除所选择的节点并产生RC元件和独立电流源,其保持电路的节点电压的精度以用于相应电路方程的入门扰动的精度顺序降低。 此外,提供了一种在减少电路的同时处理独立电流源的有效方法。
    • 59. 发明申请
    • Device and method for receiving digital multimedia broadcasting signal in wireless terminal
    • 在无线终端接收数字多媒体广播信号的装置和方法
    • US20070253354A1
    • 2007-11-01
    • US11524712
    • 2006-09-21
    • Min SakongJae-Ho LeeYoung-Hwan Kim
    • Min SakongJae-Ho LeeYoung-Hwan Kim
    • H04Q7/00
    • H04H40/18
    • Disclosed are a device and a method for receiving a Digital Multimedia Broadcasting (DMB) signal in a wireless terminal, which can receive a DMB signal corresponding to each channel. The apparatus includes an automatic matching unit resonating at a frequency band corresponding to a selected channel; a DMB reception unit outputting a DMB signal corresponding to the selected channel, which is received through the resonated frequency band using the automatic matching unit; and a control unit controlling the automatic matching unit to resonate at the frequency band corresponding to the selected channel and the DMB reception unit to output the DMB signal corresponding to the selected channel, which is received through the resonated frequency band. Further, the method includes: resonating at a frequency band corresponding to a selected channel if the channel is selected in a DMB mode of a wireless terminal; and outputting a DMB signal corresponding to the selected channel, which is received through the resonated frequency band.
    • 公开了一种用于在无线终端中接收数字多媒体广播(DMB)信号的装置和方法,其可以接收对应于每个信道的DMB信号。 该装置包括在对应于所选频道的频带上谐振的自动匹配单元; DMB接收单元,输出通过所述谐振频带使用所述自动匹配单元接收的与所选择的信道相对应的DMB信号; 以及控制单元,控制所述自动匹配单元在与所选择的频道相对应的频带和所述DMB接收单元之间谐振,以输出通过所述谐振频带接收到的所选频道对应的DMB信号。 此外,该方法包括:如果在无线终端的DMB模式中选择了信道,则在与所选择的信道相对应的频带上共振; 并且输出与通过所述谐振频带接收的所选择的信道相对应的DMB信号。
    • 60. 发明申请
    • Signal generator, signal generation method, and RF communication system using the same
    • 信号发生器,信号发生方法和使用其的RF通信系统
    • US20070248030A1
    • 2007-10-25
    • US11523534
    • 2006-09-20
    • Sang-Min HanSeong-soo LeeYoung-hwan KimAlexander S. Dmitriev
    • Sang-Min HanSeong-soo LeeYoung-hwan KimAlexander S. Dmitriev
    • H04B7/00
    • H03G3/3036H04B1/7174H04L27/001
    • A signal generator, a signal generation method, and a communication system using the same are provided. The signal generator includes a plurality of nonlinear elements which are connected in a ring; and a signal distributor which is arranged in the ring to form a closed loop, feeds part of a signal to one of the plurality of the nonlinear elements, and outputs signal generated by one of the plurality of nonlinear elements. The method includes arranging a plurality of nonlinear elements connected in a ring; inputting a signal to one of the nonlinear elements; amplifying the signal; receiving the amplified signal and generating a harmonic component of a frequency; clipping the signal; and feeding part of the signal back to one of the nonlinear elements and outputting a remainder of the signal. The system includes a chaotic signal generator; a signal distributor; a modulator; and a transmission circuit.
    • 提供信号发生器,信号生成方法和使用该信号发生方法的通信系统。 信号发生器包括以环形连接的多个非线性元件; 以及信号分配器,其布置在所述环中以形成闭环,将部分信号馈送到所述多个非线性元件中的一个,并输出由所述多个非线性元件之一产生的信号。 该方法包括布置连接在环中的多个非线性元件; 将信号输入到非线性元件之一; 放大信号; 接收放大的信号并产生频率的谐波分量; 剪辑信号; 并将信号的一部分馈送回非线性元件中的一个,并输出信号的剩余部分。 该系统包括混沌信号发生器; 信号分配器; 调制器 和发送电路。