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    • 41. 发明申请
    • APPARATUS AND METHOD FOR CORRECTING NON-LINEAR DISTORTION BASED ON CHARACTERISTIC MODELING OF HIGH POWER AMPLIFIER
    • 基于大功率放大器特性建模的非线性失真校正装置及方法
    • US20090219088A1
    • 2009-09-03
    • US12089475
    • 2006-09-28
    • Jae-Hyun SeoHeung-Mook KimYong-Tae LeeHo-Min EumSung-Ik ParkSeung-Won KimSoo-In Lee
    • Jae-Hyun SeoHeung-Mook KimYong-Tae LeeHo-Min EumSung-Ik ParkSeung-Won KimSoo-In Lee
    • H03F1/26
    • H04B1/04H03F1/3241H03F1/3247H04B2001/0425
    • An apparatus for correcting a non-linear distortion includes a pre-distorter for pre-distorting a transmit signal inputted from an external apparatus based on pre-distortion characteristics outputted from a pre-distortion characteristic predictor; a modulator for modulating the pre-distorted signal to thereby generate a modulated signal; a frequency up-converter for up-converting a frequency of the modulated signal to thereby generate an up-converted signal; a high power amplifier for amplifying the up-converted signal to a high power amplified signal; a frequency down-converter for down-converting a frequency of the high power amplified signal, thereby generate a down-converted signal; a demodulator for demodulating the down-converted signal, to thereby generate a demodulated signal; a high power amplifying characteristic predictor for predicting characteristics of the high power amplifier based on the pre-distorted signal and the demodulated signal; and a pre-distortion characteristic predictor for predicting the pre-distortion characteristics based on the pre-distorted signal and the predicted high power amplifying characteristics.
    • 用于校正非线性失真的装置包括:预失真器,用于基于从预失真特性预测器输出的预失真特性来预失真从外部设备输入的发送信号; 调制器,用于调制预失真信号从而产生调制信号; 上变频器,用于上变频调制信号的频率,从而产生上变频信号; 用于将上变频信号放大到高功率放大信号的高功率放大器; 降频转换器,用于下变频大功率放大信号的频率,从而产生下变频信号; 解调器,用于解调下变频信号,从而产生解调信号; 用于基于预失真信号和解调信号来预测大功率放大器的特性的高功率放大特性预测器; 以及预失真特性预测器,用于基于预失真信号和预测的高功率放大特性预测预失真特性。
    • 42. 发明申请
    • APPARATUS AND METHOD OF ON-CHANNEL REPEATER
    • 通道重复器的设备和方法
    • US20090209201A1
    • 2009-08-20
    • US11912536
    • 2005-12-29
    • Sung-Ik ParkYong-Tae LeeHo-Min EumHeung-Mook KimJae-Hyun SeoSeung-Won KimSoo-In Lee
    • Sung-Ik ParkYong-Tae LeeHo-Min EumHeung-Mook KimJae-Hyun SeoSeung-Won KimSoo-In Lee
    • H04B7/14
    • H04B7/155H04B7/15564
    • Provided are an on-channel repeater and a method thereof. The on-channel repeater can extract reception channel information from signals transmitted from a main transmitter or another repeater, compensate for channel distortion caused on a transmission channel by inversely reflecting the extracted reception channel information to the received signals, and transmit the channel-distortion compensated signals through the same channel as a reception channel, and a method thereof. The on-channel repeater includes: a receiver for receiving RF signals transmitted from outside; a down-converter for down-converting the received RF signals into signals of a desired band; a channel-estimator for estimating an inverse value of a reception channel based on the down-converted signals; an adaptation filter for compensating for channel distortion by using a filter having the inverse value of the estimated reception channel; an up-converter for up-converting the channel distortion-compensated signals into RF signals; and a transmitter for transmitting the up-converted RF signals.
    • 提供一种同频中继器及其方法。 同频中继器可以从主发射机或另一中继器发送的信号中提取接收信道信息,通过将所提取的接收信道信息反向反映到接收信号来补偿在传输信道上引起的信道失真,并发送信道失真补偿 通过与接收信道相同的信道发送信号,及其方法。 同频中继器包括:用于接收从外部发送的RF信号的接收机; 用于将所接收的RF信号下变频为期望频带的信号的下变频器; 用于基于下变频信号估计接收信道的反相值的信道估计器; 适应滤波器,用于通过使用具有估计的接收信道的逆值的滤波器来补偿信道失真; 用于将信道失真补偿信号上变频成RF信号的上变频器; 以及用于发送上变频的RF信号的发射机。
    • 43. 发明授权
    • Apparatus and method for corresponding frequency synchronization in on-channel repeater
    • 通道中继器对应频率同步的装置和方法
    • US07773665B2
    • 2010-08-10
    • US11579657
    • 2005-05-12
    • Ho-Min EumYong-Tae LeeSeung-Won KimHeung-Mook KimJae-Hyun SeoSung-Ik ParkSoo-In Lee
    • Ho-Min EumYong-Tae LeeSeung-Won KimHeung-Mook KimJae-Hyun SeoSung-Ik ParkSoo-In Lee
    • H04L25/60H03D3/24
    • H04H20/02H03J7/04H04B7/15528H04H20/67H04H20/72H04W56/00
    • Provided is a frequency synchronizing apparatus and method that can synchronize frequencies between receiving signals and transmitting signals by extracting a carrier error and sampling timing error information in a synchronization process of the receiving signal from a main transmitter or another repeater and reflecting them in the transmitting signal in an on-channel repeater. The apparatus includes a carrier recovery means for compensating a carrier frequency error of a receiving signal; a timing recovery means for compensating a sampling timing error of the receiving signal; a carrier error reflecting means for reflecting the carrier frequency error extracted from the carrier recovery means to a transmitting signal; and a timing error reflecting means for reflecting the sampling timing error extracted from the timing recovery means to the transmitting signal. The present invention is used to form an on-channel repeating network in any transmission system including a digital television broadcasting system.
    • 提供一种频率同步装置和方法,其可以通过在来自主发射机或另一个中继器的接收信号的同步处理中提取载波误差和采样定时误差信息来同步接收信号和发射信号之间的频率并将其反射到发射信号中 在一个通道中继器。 该装置包括用于补偿接收信号的载波频率误差的载波恢复装置; 定时恢复装置,用于补偿接收信号的采样定时误差; 用于将从载波恢复装置提取的载波频率误差反映到发射信号的载波误差反射装置; 以及定时误差反映装置,用于将从定时恢复装置提取的采样定时误差反映到发射信号。 本发明用于在包括数字电视广播系统的任何传输系统中形成一个同信道重复网络。
    • 44. 发明申请
    • APPARATUS FOR EQUALIZING CHANNEL IN FREQUENCY DOMAIN AND METHOD THEREFOR
    • 用于使频域中的频道均衡的装置及其方法
    • US20090220035A1
    • 2009-09-03
    • US12088040
    • 2005-12-26
    • Sung-Ik ParkSeung-Won KimSoo-In LeeSang-Won SonYou-Seok LeeHyoung-Nam Kim
    • Sung-Ik ParkSeung-Won KimSoo-In LeeSang-Won SonYou-Seok LeeHyoung-Nam Kim
    • H04L27/01
    • H04L25/03159H04L25/0212
    • Provided is an apparatus for channel equalization in frequency domain, including: a channel estimation unit for estimating a channel on received signal from outside, a channel matched filter for changing channel characteristic of the channel estimated by the channel estimation unit and the received signal to channel characteristic to meet condition required for noncausal filtering, a noncausal filter for changing the channel characteristic changed by the channel matched filter from nonminimum phase channel to minimum phase channel, a reverse channel calculation unit for calculating a reverse of the channel changed by the non-causal filter in frequency domain, and a frequency domain equalization unit for performing channel equalization with respect to the channel changed by the noncausal filter in the frequency domain by using the reverse obtained by the reverse channel calculation unit as coefficients of the frequency domain equalization apparatus.
    • 提供了一种频域信道均衡的装置,包括:信道估计单元,用于估计来自外部的接收信号的信道,用于改变由信道估计单元估计的信道的信道特性的信道匹配滤波器,以及接收的信道到信道 满足非因果滤波所需条件的特征,用于将由信道匹配滤波器改变的信道特性改变为非最小相位信道的非因果滤波器,用于计算由非因果变换的信道的反向的反向信道计算单元 滤波器,以及频域均衡单元,用于通过使用由反向信道计算单元获得的反向作为频域均衡装置的系数,对频域中的非因果滤波器改变的信道进行信道均衡。
    • 45. 发明申请
    • Pre-Equalization Apparatus and Method for Reducing Time Delay in On-Channel Repeater
    • 预均衡装置及减少上行中继器延时的方法
    • US20080267266A1
    • 2008-10-30
    • US12089468
    • 2006-10-04
    • Heung-Mook KimSung-Ik ParkJae-Hyun SeoHo-Min EumYong-Tae LeeSeung-Won KimSoo-In Lee
    • Heung-Mook KimSung-Ik ParkJae-Hyun SeoHo-Min EumYong-Tae LeeSeung-Won KimSoo-In Lee
    • H04L25/20
    • H04L25/03343H04L25/03038H04L2025/03375H04L2025/03477
    • Provided is a pre-equalization apparatus and method that can reduce time delay of an on-channel repeater. The pre-equalization apparatus reduces time delay in an on-channel repeater by generating modified filter coefficient from a given filter coefficient and a pre-equalization filter coefficient after an up-sampling process and filtering up-sampled signals. The pre-equalization apparatus includes: a baseband signal generating unit for forming a baseband signal by combining an inputted signal, field sync signal, and segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; an up-sampling unit for up-sampling the baseband signal having the pilot signal; a pre-equalization filter coefficient generating unit for generating a pre-equalization filter coefficient; a modified filter coefficient generating unit for generating a modified filter coefficient by using the pre-equalization filter coefficient and a given filter coefficient; and a filtering unit for filtering the up-sampled signal by using the modified filter coefficient.
    • 提供了一种可以减少同信道中继器的时间延迟的预均衡装置和方法。 预均衡装置通过从上采样处理产生修正的滤波器系数和预均衡滤波器系数,并对上采样信号进行滤波,从而减少同频中继器的时延。 预均衡装置包括:基带信号生成单元,用于通过组合输入信号,场同步信号和分段同步信号来形成基带信号; 导频添加单元,用于向所述基带信号添加导频信号; 上采样单元,用于对具有导频信号的基带信号进行上采样; 预均衡滤波器系数产生单元,用于产生预均衡滤波器系数; 修正滤波器系数生成单元,用于通过使用预均衡滤波器系数和给定的滤波器系数来生成修正的滤波器系数; 以及滤波单元,用于通过使用修正的滤波器系数对上采样信号进行滤波。
    • 47. 发明授权
    • Structure of roll-rod for subframe
    • 子框滚动杆结构
    • US08839900B2
    • 2014-09-23
    • US13551339
    • 2012-07-17
    • Seung-Won Kim
    • Seung-Won Kim
    • B60K5/12B62D21/00B60K5/00
    • B60K5/00F16F13/1463
    • A structure of a roll-rod for a subframe filled with a hydro liquid therein, may include a bracket bar, an inner pipe including a cylindrical pipe and a supporting plate joined with the cylindrical pipe, an endplate joined to the cylindrical pipe, an outer pipe enclosing the inner pipe between the bracket bar and the endplate and including an extension part, where the supporting plate may be disposed with a gap in the extension part having a curved shape, an insulator forming a front liquid chamber and a rear liquid chamber with the supporting plate to receive the hydro-liquid therein, and a housing, wherein the supporting plate may move relative to the outer pipe such that the gap varies while the insulator is elastically transformed according to movement of the bracket bar and the endplate.
    • 用于其中装有液体液体的机架的滚动杆的结构可以包括支架杆,包括圆柱形管的内管和与圆柱形管接合的支撑板,连接到圆柱形管的端板,外部 管道将管道封闭在支架杆和端板之间并且包括延伸部分,其中支撑板可以设置成具有弯曲形状的延伸部分中的间隙,形成前液体室的绝缘体和具有 用于在其中容纳液体液体的支撑板和壳体,其中支撑板可以相对于外管移动,使得当绝缘体根据支架杆和端板的移动弹性变形时间隙变化。
    • 48. 发明授权
    • Pre-equalizer, VSB transmission system using the same, and transmission method thereof
    • 前置均衡器,VSB传输系统使用相同,及其传输方法
    • US07406132B2
    • 2008-07-29
    • US10267818
    • 2002-10-10
    • Jae-Hyun SeoYong-Tae LeeSeung-Won Kim
    • Jae-Hyun SeoYong-Tae LeeSeung-Won Kim
    • H04B15/00H04L25/03H04L25/49
    • H04L25/03343H04L2025/03484H04L2025/03573H04L2025/03802
    • Disclosed is a pre-equalizer, a vestigial sideband (VSB) transmission system using the pre-equalizer, and a VSB transmission method. A first transmit signal is stored in a first memory, and a pre-equalizer pre-equalizes the first transmit signal based on a set tap coefficient. A transmitter modulates the pre-equalized first transmit signal, and sends the modulated signal. The first transmit signal is fed back to a receiver, which demodulates the transmitted first transmit signal and stores the demodulated signal as the second transmit signal in a second memory. Subsequently, the pre-equalizer calculates a tap coefficient based on an error value as the difference between the first transmit signal and the second transmit signal, and updates the set tap coefficient based on the calculated tap coefficient.
    • 公开了一种预均衡器,使用前置均衡器的残留边带(VSB)传输系统和VSB传输方法。 第一发送信号存储在第一存储器中,并且预均衡器基于设定的抽头系数对第一发送信号进行预均衡。 发射机调制预均衡的第一发射信号,并发送调制信号。 将第一发送信号反馈到接收机,接收机解调所发送的第一发送信号,并将解调后的信号作为第二发送信号存储在第二存储器中。 随后,预均衡器基于作为第一发送信号和第二发送信号之间的差的误差值来计算抽头系数,并且基于计算出的抽头系数来更新设定的抽头系数。
    • 49. 发明授权
    • Structure of engine mount for vehicle
    • 车辆发动机支架结构
    • US08651217B2
    • 2014-02-18
    • US13191879
    • 2011-07-27
    • Yong-Jin KimSeung-Won KimKong-Sup JungHyo-Seok Kim
    • Yong-Jin KimSeung-Won KimKong-Sup JungHyo-Seok Kim
    • B60K5/12
    • B60K5/1241B60K5/04B60K17/24B62D21/11
    • A structure of an engine mount is provided for a vehicle in which an engine is disposed in the front of the vehicle, a front wheel is driven, and the engine is integrally coupled with a transmission to be seated horizontally on a vehicle body in a transverse mounting direction. The structure may include a driveshaft coupled to receive the driving force of the engine through the transmission and penetrate a center bearing through a bearing bracket fixed to the engine, a subframe as a plate shape coupled to the vehicle body in a rear lower part of the engine and coupled to a lower part of the transmission through a main roll rod mounted on the front, and a sub-roll rod having one end connected to the subframe and the other end connected to the bearing bracket.
    • 发动机支架的结构为发动机设置在车辆的前部而被驱动的车辆提供,并且发动机与变速器一体地联接,以使车身横向放置在横向 安装方向。 该结构可以包括被连接以通过传动装置接收发动机的驱动力的驱动轴,并通过固定在发动机上的轴承架穿过中心轴承,将副车架作为联接到车身的板形在后部的下部 发动机,并且通过安装在前部的主辊杆耦合到变速器的下部;以及副辊杆,其一端连接到副车架,另一端连接到轴承座。
    • 50. 发明申请
    • STRUCTURE OF ENGINE MOUNT FOR VEHICLE
    • 发动机结构用于车辆
    • US20120048638A1
    • 2012-03-01
    • US13191879
    • 2011-07-27
    • Yong-Jin KimSeung-Won KimKong-Sup JungHyo-Seok Kim
    • Yong-Jin KimSeung-Won KimKong-Sup JungHyo-Seok Kim
    • B60K5/04B60K5/12
    • B60K5/1241B60K5/04B60K17/24B62D21/11
    • A structure of an engine mount is provided for a vehicle in which an engine is disposed in the front of the vehicle, a front wheel is driven, and the engine is integrally coupled with a transmission to be seated horizontally on a vehicle body in a transverse mounting direction. The structure may include a driveshaft coupled to receive the driving force of the engine through the transmission and penetrate a center bearing through a bearing bracket fixed to the engine, a subframe as a plate shape coupled to the vehicle body in a rear lower part of the engine and coupled to a lower part of the transmission through a main roll rod mounted on the front, and a sub-roll rod having one end connected to the subframe and the other end connected to the bearing bracket.
    • 发动机支架的结构为发动机设置在车辆的前部而被驱动的车辆提供,并且发动机与变速器一体地联接,以使车身横向放置在横向 安装方向。 该结构可以包括被连接以通过传动装置接收发动机的驱动力的驱动轴,并通过固定在发动机上的轴承架穿过中心轴承,将副车架作为联接到车身的板形在后部的下部 发动机,并且通过安装在前部的主辊杆耦合到变速器的下部;以及副辊杆,其一端连接到副车架,另一端连接到轴承座。