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公开(公告)号：US20080258977A1
公开(公告)日：2008-10-23
申请号：US11785789
申请日：2007-04-20
IPC分类号： H01Q1/38
摘要： A multiband antenna system is provided. The system includes a substrate; an antenna which is disposed on a first side and a second side of the substrate, and produces a resonance in a plurality of frequency bands; a plurality of feeders which are disposed on the first side of the substrate; and a filter which is disposed on the first side of the substrate, is coupled to an end of the antenna, and transfers signals of the plurality of frequency bands output from the antenna to respective feeders of the plurality of the feeders.
摘要翻译： 提供多频天线系统。 该系统包括基板; 天线，其布置在所述基板的第一侧和第二侧上，并且在多个频带中产生谐振; 设置在所述基板的第一侧上的多个进给器; 并且设置在所述基板的第一侧上的滤波器被耦合到所述天线的端部，并且将从所述天线输出的所述多个频带的信号传送到所述多个馈送器中的相应馈线。
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2.发明授权Method and apparatus for acquiring code synchronization in a CDMA communication system 失效用于在CDMA通信系统中获取码同步的方法和装置公开(公告)号：US06798758B1
公开(公告)日：2004-09-28
申请号：US09577596
申请日：2000-05-25
申请人： Ji-yong Chun , Hyoung-woon Park
发明人： Ji-yong Chun , Hyoung-woon Park
IPC分类号： H04B1707
摘要： Acquisition of initial code synchronization in a receiving system for a code division multiple access (CDMA) signal is realized by producing a complex digital signal having K components by sampling an analog signal derived from the received CDMA-modulated signal. Components of the complex digital signal are correlated with N code phases. The energies of these correlated values are examined, in parallel, to determine whether the ratio of the maximum energy within the block to the average energy in the block equals or exceeds a predetermined threshold. If so, this is a valid maximum, and the code synchronization is complete. If not, further components of the complex digital signal are correlated with another set of N code phases, and are examined in the same manner. Accordingly, reliable determination as to whether code synchronization has been achieved can be realized with minimal influence of channel distortion in a CDMA received signal.
摘要翻译： 通过对从接收的CDMA调制信号中得到的模拟信号进行采样，产生具有K个分量的复数数字信号，来实现用于码分多址（CDMA）信号的接收系统中初始码同步的获取。 复数字信号的分量与N个码相位相关。 并行地检查这些相关值的能量，以确定块内的最大能量与块中的平均能量的比是否等于或超过预定阈值。 如果是这样，这是有效的最大值，并且代码同步完成。 如果不是，则复数字信号的其他分量与另一组N个码相位相关，并以相同的方式进行检查。 因此，可以以CDMA接收信号中的信道失真的影响最小的方式来实现关于是否已经实现了码同步的可靠性。
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3.发明授权Adaptive equalizer of disk reproducing apparatus using a constant angular velocity method 失效使用恒定角速度法的盘重放装置的自适应均衡器
公开(公告)号：US5543978A
公开(公告)日：1996-08-06
申请号：US365945
申请日：1994-12-29
申请人： Hyoung-woon Park
发明人： Hyoung-woon Park
CPC分类号： G11B20/10481 , G11B20/10009 , G11B20/10037 , G11B20/10046 , G11B5/09
摘要： An adaptive equalizer includes a recording density detector for calculating a recording density reference value by obtaining the track radius using input track information, a reference tap coefficient storage portion for storing the reference tap coefficient obtained according to the channel impulse response at the lowest density position, a tap coefficient controller for obtaining a tap coefficient according to the recording density using the recording density reference value on the basis of the reference tap coefficient stored in the reference tap coefficient storage portion, and a waveform equalizer for eliminating the interference of the signal adjacent to the input reproducing digital signal using the tap coefficient obtained from the tap coefficient controller, to output the reproducing information signal. Therefore, the recording density is assumed by the track information of the reproduced data and the reproduction signal is adaptively waveform-equalized, so that high-speed real-time processing is possible and the circuit construction can be simplified.
摘要翻译： 自适应均衡器包括：记录密度检测器，用于通过使用输入轨道信息获得轨道半径来计算记录密度参考值;参考抽头系数存储部分，用于存储根据在最低密度位置处的信道脉冲响应获得的参考抽头系数; 抽头系数控制器，用于根据存储在参考抽头系数存储部分中的参考抽头系数，使用记录密度参考值根据记录密度获得抽头系数;以及波形均衡器，用于消除与...相邻的信号的干扰 使用从抽头系数控制器获得的抽头系数的输入再现数字信号，输出再现信息信号。 因此，记录密度由再现数据的轨道信息假设，并且再现信号被自适应地波形均衡，使得可以进行高速实时处理并且可以简化电路结构。
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公开(公告)号：US07605760B2
公开(公告)日：2009-10-20
申请号：US11785789
申请日：2007-04-20
摘要： A multiband antenna system is provided. The system includes a substrate; an antenna which is disposed on a first side and a second side of the substrate, and produces a resonance in a plurality of frequency bands; a plurality of feeders which are disposed on the first side of the substrate; and a filter which is disposed on the first side of the substrate, is coupled to an end of the antenna, and transfers signals of the plurality of frequency bands output from the antenna to respective feeders of the plurality of the feeders.
摘要翻译： 提供多频天线系统。 该系统包括基板; 天线，其布置在所述基板的第一侧和第二侧上，并且在多个频带中产生谐振; 设置在所述基板的第一侧上的多个进给器; 并且设置在所述基板的第一侧上的滤波器被耦合到所述天线的端部，并且将从所述天线输出的所述多个频带的信号传送到所述多个馈送器中的相应馈线。
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5.发明授权公开(公告)号：US06892059B1
公开(公告)日：2005-05-10
申请号：US09644241
申请日：2000-08-23
申请人： Sung-jin Kim , Hyoung-woon Park
发明人： Sung-jin Kim , Hyoung-woon Park
CPC分类号： H04L25/03343 , H04B7/0626 , H04B7/0641 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L2025/03426 , H04L2025/03802
摘要： A closed-loop transmitting antenna diversity method, and a base station and mobile station apparatus therefore in a next generation mobile telecommunications system, the closed-loop transmitting antenna diversity method having a plurality of antennas in a mobile telecommunications system, including the steps of (a) measuring the changed amount per unit time of the phase difference between antennas for each of the plurality of antennas which are used in a base station; (b) transmitting the result of measuring as feedback information for adjusting transmitting antenna diversity; (c) receiving and interpreting feedback information in the base station; (d) calculating the weighted value of array antennas for each antenna, using the interpreted feedback information; and (e) multiplying data which is to be transmitted from the base station to a mobile station by the array antenna weighted value, and outputting the result through a corresponding antenna. Here, the changed amount per unit time of the phase difference between antennas is obtained by subtracting the previous phase difference between antennas which the base station knows from the phase difference between antennas which is calculated by a current mobile station.
摘要翻译： 一种闭环发送天线分集方法，以及下一代移动通信系统中的基站和移动站装置，在移动电信系统中具有多个天线的闭环发送天线分集方法，包括以下步骤： a）测量在基站中使用的所述多个天线中的每一个的天线之间的相位差的每单位时间的改变量; （b）将测量结果作为用于调整发射天线分集的反馈信息; （c）接收和解释基站中的反馈信息; （d）使用解释的反馈信息来计算每个天线的阵列天线的加权值; 以及（e）将通过阵列天线加权值将要从基站发送到移动台的数据相乘，并通过相应的天线输出结果。 这里，通过从当前移动台计算的天线之间的相位差中减去基站知道的天线之前的相位差来获得天线之间的相位差的每单位时间的改变量。
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