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    • 2. 发明授权
    • On-channel repeater and on-channel repeating method
    • 通道中继器和通道重复方法
    • US08934834B2
    • 2015-01-13
    • US12599457
    • 2007-11-09
    • Sung-Ik ParkHeung-Mook KimJae-Hyun SeoHo-Min EumJae-Young LeeYong-Tae LeeJong-Soo LimSoo-In Lee
    • Sung-Ik ParkHeung-Mook KimJae-Hyun SeoHo-Min EumJae-Young LeeYong-Tae LeeJong-Soo LimSoo-In Lee
    • H04M1/00H04B7/155
    • H04B7/15585
    • Provided are an on-channel repeater and an on-channel repeating method. The on-channel repeater includes: a receiving means for receiving a Radio Frequency (RF) signal; a subtracting means for subtracting a replica of feedback signals from the signal received by the receiving means; a replica generating means for calculating the replica based on the signal acquired from the subtraction in the subtracting means and feeding back the replica to the subtracting means; an inverse channel estimating means for estimating inverse of a reception channel based on the signal acquired from the subtraction in the subtracting means and generating filter tab coefficients; a first adaptive filtering means for compensating for channel distortion of the signal subtracted by the subtracting means based on the filter tab coefficients generated in the inverse channel estimating means; and a transmitting means for converting a signal whose channel distortion is compensated by the first adaptive filtering means into an RF signal and performing radio transmission.
    • 提供了一个通道内中继器和一个通道间重复方法。 所述同频中继器包括:接收装置,用于接收射频(RF)信号; 减法装置,用于从接收装置接收的信号中减去反馈信号的副本; 复制产生装置,用于基于从减法装置中减法获得的信号计算副本,并将副本反馈给减法装置; 反向信道估计装置,用于基于从减法装置中的减法获得的信号估计接收信道的反向,并产生滤波器标签系数; 第一自适应滤波装置,用于基于在反向信道估计装置中产生的滤波器选项卡系数来补偿由减法装置减去的信号的信道失真; 以及发送装置,用于将由第一自适应滤波装置补偿的信道失真的信号转换为RF信号并执行无线电发送。
    • 9. 发明申请
    • BETA-BASED TITANIUM ALLOY WITH LOW ELASTIC MODULUS
    • 基于BETA的钛合金与低弹性模量
    • US20110070121A1
    • 2011-03-24
    • US12994083
    • 2008-12-24
    • Dong Geun LeeYong Tae LeeXujun MiWenjun YeSongxiao Hui
    • Dong Geun LeeYong Tae LeeXujun MiWenjun YeSongxiao Hui
    • C22C14/00
    • C22C14/00A61L27/06C22F1/183
    • Provided is a beta-based titanium alloy with a low elastic modulus, including no elements harmful to the human body and having excellent biocompatibility. The beta-based titanium alloy includes titanium (Ti), niobium (Nb) and zirconium (Zr) as major alloying elements, and further includes tantalum (Ta), hafnium (Hf), molybdenum (Mo), tin (Sn), and the like. The beta-based titanium alloy has a much lower elastic modulus than the typical biomedical titanium alloys, and thus can resolve the problem of so-called “stress shield effect.” Therefore, the beta-based titanium alloy can be widely used as a material for general civilian goods such as eyewear frames and headsets and sports and leisure goods, as well as a biomedical material for artificial bones, artificial teeth and artificial hip joints.
    • 本发明提供一种具有低弹性模量的β型钛合金,其不含对人体有害的元素,具有优异的生物相容性。 β型钛合金包括钛(Ti),铌(Nb)和锆(Zr)作为主要合金元素,还包括钽(Ta),铪(Hf),钼(Mo),锡(Sn)和 类似。 β型钛合金具有比典型的生物医学钛合金低得多的弹性模量,因此可以解决所谓的“应力屏蔽效应”的问题。因此,β型钛合金可以广泛用作材料 用于一般民用品如眼镜架,耳机,运动休闲用品,以及人造骨,人造牙和人造髋关节的生物医学材料。