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1. 发明授权

US07123653B2 Method and apparatus for blind decision feedback equalization 有权
公开(公告)号：US07123653B2
公开(公告)日：2006-10-17
申请号：US10334578
申请日：2002-12-31
申请人： Hyoung-Nam Kim , Yong Tae Lee , Seung Won Kim
发明人： Hyoung-Nam Kim , Yong Tae Lee , Seung Won Kim
IPC分类号： H03H7/30 , G06F17/10
CPC分类号： H04L25/0305 , H04L2025/0349 , H04L2025/03681 , H04L2025/03694
摘要： The present invention relates to blind decision feedback equalization. The present invention selects one of a filter signal and a quantized signal as an input signal of a feedback filter in the DFE and update the tap coefficient according to the SAG flag f[k] by including a main filtering unit, a SAG flag determining unit and a blind feedback controlling unit. The present invention prevents decrement of a performance caused by an error propagation and also improve a convergence performance in an equalization apparatus and reduce a symbol error rate (SER) at a steady state after converging. In conclusion, the present invention can be used effectively to a receiver in a digital TV, which is required the blind equalizer.

2. 发明授权

US08411540B2 Recording and/or reproducing apparatus and control method thereof 有权
标题翻译：记录和/或再现装置及其控制方法
公开(公告)号：US08411540B2
公开(公告)日：2013-04-02
申请号：US12099228
申请日：2008-04-08
申请人： Sung Chul Kim , Hyoung Nam Kim , Hyung Keuk Lim , Sang Min Lee
发明人： Sung Chul Kim , Hyoung Nam Kim , Hyung Keuk Lim , Sang Min Lee
IPC分类号： G11B7/00
CPC分类号： G11B19/12
摘要： A recording and/or reproducing apparatus outputs a loading time of a recording medium through a display to inform a user of the loading time, and a control method thereof. The recording and/or reproducing apparatus includes a calculation unit to calculate loading time of a recording medium when the recording medium is inserted into the recording and/or reproducing apparatus, and an output unit to output the calculated loading time to a display.
摘要翻译：记录和/或再现装置通过显示器输出记录介质的加载时间，以通知用户加载时间及其控制方法。记录和/或再现装置包括计算单元，用于当记录介质插入到记录和/或再现装置中时计算记录介质的加载时间;以及输出单元，用于将计算出的加载时间输出到显示器。

3. 发明授权

US08364076B2 Apparatus and method of feedback cancellation for radio signal 失效
标题翻译：无线电信号反馈消除的装置和方法
公开(公告)号：US08364076B2
公开(公告)日：2013-01-29
申请号：US12884805
申请日：2010-09-17
申请人： Ho-Min Eum , Heung-Mook Kim , Hyoung-Nam Kim , Yong-Gu Jo
发明人： Ho-Min Eum , Heung-Mook Kim , Hyoung-Nam Kim , Yong-Gu Jo
IPC分类号： H04B7/14
CPC分类号： H04B1/525 , H04B7/15585
摘要： A feedback signal cancellation apparatus includes a first RF receiver configured to down-convert a received RF signal to a predetermined frequency band, a subtractor configured to subtract a replica of a feedback signal from the down-converted signal, a transmission signal generator configured to generate a repeater output signal using a feedback cancelled signal, a RF transmitter configured to transmit the repeater output signal, a second RF receiver configured to down-convert a RF signal outputted from the RF transmitter to a predetermined frequency band, a reference signal generator configured to receive the RF signal and generate a reference signal having no DC pilot, and a replica generator configured to generate a filter coefficient using correlation between the feedback cancelled signal and the reference signal and to generate a replica of the feedback signal using the generated filter coefficient and the down-converted signal of the second RF receiver.
摘要翻译：反馈信号消除装置包括被配置为将接收的RF信号下变频到预定频带的第一RF接收器，被配置为从下变频信号中减去反馈信号的副本的减法器，被配置为产生使用反馈消除信号的中继器输出信号，被配置为发送中继器输出信号的RF发射机，被配置为将从RF发射机输出的RF信号下变频到预定频带的第二RF接收机;参考信号发生器，被配置为接收RF信号并产生不具有直流导频的参考信号，以及复制发生器，被配置为使用反馈消除信号和参考信号之间的相关来产生滤波器系数，并使用所生成的滤波器系数产生反馈信号的副本，第二RF接收机的下变频信号。

4. 发明授权

US08364074B2 On-channel repeater for feedback capable of removing feedback signals based on pilot partitioning and method thereof 有权
标题翻译：用于基于导频划分的能够去除反馈信号的反馈的通道内中继器及其方法
公开(公告)号：US08364074B2
公开(公告)日：2013-01-29
申请号：US12681966
申请日：2008-06-10
申请人： Sung-Ik Park , Yong-Tae Lee , Jong-Soo Lim , Soo-In Lee , Ji-Bong Lee , Wan-Jin Kim , Hyoung-Nam Kim , Kyung-Sik Son
发明人： Sung-Ik Park , Yong-Tae Lee , Jong-Soo Lim , Soo-In Lee , Ji-Bong Lee , Wan-Jin Kim , Hyoung-Nam Kim , Kyung-Sik Son
IPC分类号： H04B3/36
CPC分类号： H04B7/15585
摘要： Provided is an on-channel repeater capable of removing feedback signals based on pilot partitioning, which can efficiently remove a feedback signal by quickly coping with even a situation in which a feedback channel changes rapidly, by reducing a filter-coefficient update interval, i.e., increasing the number of times of filter-coefficient creation, through pilot partitioning, and a method thereof. The on-channel repeater includes: a receiver for receiving a signal; a subtractor for subtracting a replica of a feedback signal from the signal received in the receiver to remove the feedback signal; a replica creator for creating a filter coefficient using pilot partitioning, creating a replica of the feedback signal using the created filter coefficient, and feeding back the created replica to the subtractor; and a transmitter for transmitting an output signal of the subtractor.
摘要翻译：提供一种能够基于导频分割去除反馈信号的同信道中继器，其可以通过快速处理反馈信道快速变化的情况，通过减少滤波器系数更新间隔来有效地去除反馈信号，即，通过导频分割增加滤波器系数创建的次数及其方法。同频中继器包括：用于接收信号的接收机; 减法器，用于从接收器中接收的信号中减去反馈信号的副本以去除反馈信号; 用于使用导频分区创建滤波器系数的副本创建器，使用所创建的滤波器系数创建反馈信号的副本，以及将所创建的副本反馈到减法器; 以及用于发送减法器的输出信号的发送器。

5. 发明授权

US08233522B2 Decision feedback equalizer for digital TV and method thereof 有权
标题翻译：数字电视用决策反馈均衡器及其方法
公开(公告)号：US08233522B2
公开(公告)日：2012-07-31
申请号：US10545054
申请日：2004-02-11
申请人： Sung-Ik Park , Hyoung-Nam Kim , Seung-Won Kim , Chieteuk Ahn
发明人： Sung-Ik Park , Hyoung-Nam Kim , Seung-Won Kim , Chieteuk Ahn
IPC分类号： H03H7/30 , H03K5/159
CPC分类号： H04L25/03057 , H03M13/256 , H03M13/4161 , H03M13/6331 , H03M13/6538 , H04L1/0047 , H04L1/0054 , H04L1/006 , H04L2025/03382 , H04L2025/0349 , H04L2025/03617
摘要： The conventional decision feedback equalizer has a drawback that can't decide symbols correctly because a simple slicer is used as a symbol detector. A decision feedback equalizer as a symbol detector uses a Trellis Coded Modulation (TCM) decoder whose Trace Back depth is 1 (TBD=1), to thereby decide symbols correctly without decoding delay.
摘要翻译：传统的判决反馈均衡器具有不能正确地判断符号的缺点，因为简单的限幅器被用作符号检测器。作为符号检测器的判决反馈均衡器使用跟踪深度为1（TBD = 1）的网格编码调制（TCM）解码器，从而在没有解码延迟的情况下正确地确定符号。

6. 发明授权

US07974335B2 Apparatus for equalizing decision feedback based on channel properties change and method therefor 失效
标题翻译：基于信道特性变化来均衡决策反馈的装置及其方法
公开(公告)号：US07974335B2
公开(公告)日：2011-07-05
申请号：US12089657
申请日：2005-12-26
申请人： Sung-Ik Park , Seung-Won Kim , Soo-In Lee , Hyoung-Nam Kim , You-Seok Lee
发明人： Sung-Ik Park , Seung-Won Kim , Soo-In Lee , Hyoung-Nam Kim , You-Seok Lee
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03057 , H04B3/04 , H04L25/0212 , H04L2025/0349 , H04L2025/03617
摘要： A decision feedback equalization apparatus includes a channel estimation unit estimating a channel on received signal based on the received signal and a training sequence; a channel matched filter maximizing SNR from the channel estimated by the channel estimation unit changing channel characteristics of the received signal; a noncausal filter approximating the changed channel; an equalizer input signal storage unit storing received symbols passed through the channel matched and the noncausal filters; a channel equalization unit performing a decision feedback equalization; a Trellis decoder detecting symbol from a channel-equalized signal; a mode selection unit selecting a specific mode; an error signal calculator comparing an output signal of the selected mode with an output signal of the channel equalization unit to calculate an error signal; and a tap coefficient updater updating tap coefficients to the channel equalization unit, an output signal from the storage unit, and an output signal from the Trellis decoder.
摘要翻译：判定反馈均衡装置包括：信道估计单元，基于接收信号和训练序列估计接收信号上的信道; 信道匹配滤波器，使由信道估计单元所估计的信道的信噪比最大化，改变接收信号的信道特性; 近似改变的信道的非因果滤波器; 均衡器输入信号存储单元，存储通过所述通道匹配的接收符号和非因果滤波器; 执行判决反馈均衡的信道均衡单元; 网格解码器从信道均衡信号检测符号; 选择特定模式的模式选择单元; 误差信号计算器，将所选择的模式的输出信号与所述信道均衡单元的输出信号进行比较，以计算误差信号; 抽头系数更新器更新抽头系数到信道均衡单元，来自存储单元的输出信号和来自网格解码器的输出信号。

7. 发明申请

US20100074320A1 APPARATUS FOR EQUALIZING DECISION FEEDBACK BASED ON CHANNEL PROPERTIES CHANGE AND METHOD THEREFOR 失效
标题翻译：基于通道特性的决策反馈均衡设备变更及其方法
公开(公告)号：US20100074320A1
公开(公告)日：2010-03-25
申请号：US12089657
申请日：2005-12-26
申请人： Sung-Ik Park , Seung-Won Kim , Soo-In Lee , Hyoung-Nam Kim , You-Seok Lee
发明人： Sung-Ik Park , Seung-Won Kim , Soo-In Lee , Hyoung-Nam Kim , You-Seok Lee
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04B3/04 , H04L25/0212 , H04L2025/0349 , H04L2025/03617
摘要： Provided is a decision feedback equalization apparatus including a channel estimation unit for estimating a channel on received signal based on the received signal and a training sequence; a channel matched filter for maximizing SNR from the channel estimated by the channel estimation unit to change channel characteristic of the received signal; a noncausal filter for approximating the channel changed by the channel matched filter from nonminimum phase channel to minimum phase channel; an equalizer input signal storage unit for storing received symbols passed through the channel matched filter and the noncausal filter; a channel equalization unit for performing a decision feedback equalization through filtering of a signal passed through the channel matched filter and the noncausal filter; a Trellis decoder for detecting symbol from a signal channel-equalized by the channel equalization unit; a mode selection unit for selecting a specific mode; an error signal calculator for comparing an output signal of the mode selected by the mode selection unit with an output signal of the channel equalization unit to calculate an error signal; and a tap coefficient updater for updating tap coefficients to the channel equalization unit by using the error signal from the error signal calculator, an output signal from the storage unit, and an output signal from the Trellis decoder.
摘要翻译：提供了一种判决反馈均衡装置，包括：信道估计单元，用于基于接收信号和训练序列估计接收信号上的信道; 信道匹配滤波器，用于使来自由信道估计单元估计的信道的SNR最大化，以改变接收信号的信道特性; 用于近似由信道匹配滤波器从非最小相位信道改变到最小相位信道的信道的非因果滤波器; 均衡器输入信号存储单元，用于存储通过信道匹配滤波器和非因果滤波器的接收符号; 信道均衡单元，用于通过对通过信道匹配滤波器和非因果滤波器的信号进行滤波来执行判决反馈均衡; 用于从信道均衡单元均衡的信道中检测符号的网格解码器; 模式选择单元，用于选择特定模式; 误差信号计算器，用于将由模式选择单元选择的模式的输出信号与信道均衡单元的输出信号进行比较，以计算误差信号; 以及抽头系数更新器，用于通过使用来自误差信号计算器的误差信号，来自存储单元的输出信号和来自网格解码器的输出信号来更新抽头系数到信道均衡单元。

8. 发明申请

US20080172702A1 DIGITAL BROADCASTING RECEIVER AND CONTROL METHOD THEREOF 审中-公开
标题翻译：数字广播接收机及其控制方法
公开(公告)号：US20080172702A1
公开(公告)日：2008-07-17
申请号：US11862381
申请日：2007-09-27
申请人： Jung Su KIM , Hyoung Nam Kim , Dong Youn Lee , Jae Wook Jeon
发明人： Jung Su KIM , Hyoung Nam Kim , Dong Youn Lee , Jae Wook Jeon
IPC分类号： H04N7/173
CPC分类号： H04H60/25 , H04H60/72
摘要： A digital broadcasting receiver and a control method thereof. The method includes determining whether it is necessary to display a screen saver image on a display unit connected to the digital broadcasting receiver, and displaying the screen saver image on the display unit when it is necessary to display the screen saver image while receiving digital broadcasting signals to update EPG information.
摘要翻译：数字广播接收机及其控制方法。该方法包括确定是否需要在连接到数字广播接收机的显示单元上显示屏幕保护图像，以及当需要在接收数字广播信号时显示屏幕保护图像时在显示单元上显示屏幕保护图像更新EPG信息。

9. 发明申请

US20070104264A1 Apparatus and method of decision feedback equalization in terrestrial digital broadcasting receiver 失效
标题翻译：地面数字广播接收机中判决反馈均衡的装置和方法
公开(公告)号：US20070104264A1
公开(公告)日：2007-05-10
申请号：US10579793
申请日：2004-03-27
申请人： Sung-Ik Park , Seung-Won Kim , Hyoung-Nam Kim
发明人： Sung-Ik Park , Seung-Won Kim , Hyoung-Nam Kim
IPC分类号： H03H7/30 , H03D1/04
CPC分类号： H04N5/211 , H03M13/256 , H04L1/0054 , H04L1/006 , H04L1/0071 , H04L25/03057 , H04L27/02 , H04L2025/0349 , H04N5/4401
摘要： The present invention is related to a decision feedback equalizing apparatus and a method thereof. The object of the invention is to provide to an apparatus and a method of decision feedback equalization that make a channel property of an inferior receiving signal to mild by using a channel-matched filter and decreases decision errors of symbol detector output signals by using a trellis decoder with decreased complexity, whose trace back depth is 1 (TBD=1).
摘要翻译：本发明涉及一种判决反馈均衡装置及其方法。本发明的目的是提供一种判决反馈均衡的装置和方法，该设备和方法通过使用信道匹配滤波器使劣质接收信号的信道特性变得温和，并通过使用网格来减少符号检测器输出信号的判定误差解码器复杂度降低，其追溯深度为1（TBD = 1）。

10. 发明申请

US20100210205A1 On-channel Repeater for Feedback Capable of Removing Feedback Signals Based on Pilot Partitioning and Method Thereof 有权
标题翻译：基于导频分区及其方法消除反馈信号的反馈信道的直通中继器
公开(公告)号：US20100210205A1
公开(公告)日：2010-08-19
申请号：US12681966
申请日：2008-06-10
申请人： Sung-Ik Park , Yong-Tae Lee , Jong-Soo Lim , Soo-In Lee , Ji-Bong Lee , Wan-Jin Kim , Hyoung-Nam Kim , Kyung-Sik Son
发明人： Sung-Ik Park , Yong-Tae Lee , Jong-Soo Lim , Soo-In Lee , Ji-Bong Lee , Wan-Jin Kim , Hyoung-Nam Kim , Kyung-Sik Son
IPC分类号： H04B7/14
CPC分类号： H04B7/15585
摘要： Provided is an on-channel repeater capable of removing feedback signals based on pilot partitioning, which can efficiently remove a feedback signal by quickly coping with even a situation in which a feedback channel changes rapidly, by reducing a filter-coefficient update interval, i.e., increasing the number of times of filter-coefficient creation, through pilot partitioning, and a method thereof. The on-channel repeater includes: a receiver for receiving a signal; a subtractor for subtracting a replica of a feedback signal from the signal received in the receiver to remove the feedback signal; a replica creator for creating a filter coefficient using pilot partitioning, creating a replica of the feedback signal using the created filter coefficient, and feeding back the created replica to the subtractor; and a transmitter for transmitting an output signal of the subtractor.
摘要翻译：提供一种能够基于导频分割去除反馈信号的同信道中继器，其可以通过快速处理反馈信道快速变化的情况，通过减少滤波器系数更新间隔来有效地去除反馈信号，即，通过导频分割增加滤波器系数创建的次数及其方法。同频中继器包括：用于接收信号的接收机; 减法器，用于从接收器中接收的信号中减去反馈信号的副本以去除反馈信号; 用于使用导频分区创建滤波器系数的副本创建器，使用所创建的滤波器系数创建反馈信号的副本，以及将所创建的副本反馈到减法器; 以及用于发送减法器的输出信号的发送器。

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