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    • 1. 发明授权
    • On-chip balun and transceiver using the same and method for fabricating on-chip balun
    • 片上平衡 - 不平衡变压器和收发器采用相同的方法制造片上平衡 - 不平衡转换器
    • US07449974B2
    • 2008-11-11
    • US11330104
    • 2006-01-12
    • Jae-sup LeeDong-hyun LeeSeong-soo Lee
    • Jae-sup LeeDong-hyun LeeSeong-soo Lee
    • H03H5/00
    • H01F17/0013H01F2017/008
    • Provided are an on-chip balun, a transceiver using the on-chip balun, and a method for fabricating the on-chip balun. The on-chip balun includes: a first metal winding including a port grounded and a port to which an unbalanced signal is input; a second winding outputting an induced current generated by the first metal winding as two signals having about equal intensity and a phase difference of about 180°; and a ground shield positioned between the first and second metal windings and having a symmetric structure so as to generate a symmetric parasitic capacitance between the ground shield and the second metal winding. The ground shield can be inserted between the first and second metal windings to remove an asymmetrical parasitic capacitance so as to reduce a phase imbalance and a gain imbalance of an output value of the second metal winding. As a result, a highly balanced on-chip balun can be fabricated.
    • 提供了片上平衡 - 不平衡转换器,使用片上平衡 - 不平衡转换器的收发器以及制造片上平衡 - 不平衡转换器的方法。 片上平衡 - 不平衡变压器包括:第一金属绕组,其包括接地的端口和输入不平衡信号的端口; 输出由第一金属绕组产生的感应电流的第二绕组作为具有大约相同强度的两个信号和约180°的相位差; 以及位于第一和第二金属绕组之间并具有对称结构以便在接地屏蔽和第二金属绕组之间产生对称寄生电容的接地屏蔽。 接地屏蔽可以插入在第一和第二金属绕组之间以去除不对称的寄生电容,以便减少相位不平衡和第二金属绕组的输出值的增益不平衡。 因此,可以制造高度平衡的片上平衡 - 不平衡变压器。
    • 2. 发明申请
    • On-chip balun and transceiver using the same and method for fabricating on-chip balun
    • 片上平衡 - 不平衡变压器和收发器采用相同的方法制造片上平衡 - 不平衡转换器
    • US20060202776A1
    • 2006-09-14
    • US11330104
    • 2006-01-12
    • Jae-sup LeeDong-hyun LeeSeong-soo Lee
    • Jae-sup LeeDong-hyun LeeSeong-soo Lee
    • H03H7/42
    • H01F17/0013H01F2017/008
    • Provided are an on-chip balun, a transceiver using the on-chip balun, and a method for fabricating the on-chip balun. The on-chip balun includes: a first metal winding including a port grounded and a port to which an unbalanced signal is input; a second winding outputting an induced current generated by the first metal winding as two signals having about equal intensity and a phase difference of about 180°; and a ground shield positioned between the first and second metal windings and having a symmetric structure so as to generate a symmetric parasitic capacitance between the ground shield and the second metal winding. The ground shield can be inserted between the first and second metal windings to remove an asymmetrical parasitic capacitance so as to reduce a phase imbalance and a gain imbalance of an output value of the second metal winding. As a result, a highly balanced on-chip balun can be fabricated.
    • 提供了片上平衡 - 不平衡转换器,使用片上平衡 - 不平衡转换器的收发器以及制造片上平衡 - 不平衡转换器的方法。 片上平衡 - 不平衡变压器包括:第一金属绕组,其包括接地的端口和输入不平衡信号的端口; 输出由第一金属绕组产生的感应电流的第二绕组作为具有大约相同强度的两个信号和约180°的相位差; 以及位于第一和第二金属绕组之间并具有对称结构以便在接地屏蔽和第二金属绕组之间产生对称的寄生电容的接地屏蔽。 接地屏蔽可以插入在第一和第二金属绕组之间以去除不对称的寄生电容,以便减少相位不平衡和第二金属绕组的输出值的增益不平衡。 因此,可以制造高度平衡的片上平衡 - 不平衡变压器。
    • 9. 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。
    • 10. 发明授权
    • Space-time multiuser detector in mobile communication system and method thereof
    • 移动通信系统中的时空多用户探测器及其方法
    • US07567609B2
    • 2009-07-28
    • US11346376
    • 2006-02-03
    • Jin-soo ParkHwan-min KangSeong-soo LeeSung-ho Cho
    • Jin-soo ParkHwan-min KangSeong-soo LeeSung-ho Cho
    • H04L27/30
    • H04B1/71072H04B7/0891H04L1/0631
    • A space-time multiuser detector simultaneously reduces multiple access interference (MAI) and multipath channel distortion (MCD) that are disadvantages of mobile communication systems. The space-time multiuser detector includes a plurality of receiving antennas; a channel estimator which estimates signals received via the receiving antennas; a space-time diversity decoder which performs space-time decoding with respect to the signals provided from the channel estimator and performs diversity combination; a signal aligner which aligns the signals provided from the space-time diversity decoder; and a successive interference cancellation detector which generates an interference signal from the signals that are provided from the signal aligner one by one in sequence, and removes the interference signal from the received original signals.
    • 时空多用户检测器同时降低了移动通信系统的多重接入干扰(MAI)和多径信道失真(MCD)。 时空多用户检测器包括多个接收天线; 估计经由接收天线接收的信号的信道估计器; 空时分集解码器,对从信道估计器提供的信号执行空时解码,并执行分集组合; 对准从时空分集解码器提供的信号的信号对准器; 以及连续的干扰消除检测器,其从依次从信号对准器提供的信号中产生干扰信号,并从接收到的原始信号中去除干扰信号。