公开(公告)号：US08180005B2

公开(公告)日：2012-05-15

申请号：US12096641

申请日：2006-11-07

申请人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B7/10

CPC分类号： H04B7/0814 ,  H04L25/03012 ,  H04L2025/03426 ,  H04L2025/03535

摘要： Provided are an apparatus and method for selecting an optimal signal using auxiliary equalization in a diversity receiver. The optimal signal selecting apparatus includes: a plurality of sync recovery units for extracting sync information from baseband signals, which are candidate signals, except a baseband signal selected as a current optimal signal a plurality of auxiliary equalizers for channel-equalizing the candidate signals based on the extracted sync information; a plurality of SNR measuring units for measuring signal-to-noise ratios (SNRs) of the candidate signals inputted to the auxiliary equalizers and the candidates signals equalized in the auxiliary equalizers; and an optimal signal selector for selecting an optimal candidate signal from the candidate signals by using the extracted sync information and the measured SNRs, and replacing the optimal signal with the optimal candidate signal when reception quality of the current optimal signal is poor.

摘要翻译： 提供了一种用于在分集接收机中使用辅助均衡来选择最佳信号的装置和方法。 最佳信号选择装置包括：多个同步恢复单元，用于从作为候选信号的基带信号中提取同步信息，除了选择为当前最优信号的基带信号，多个辅助均衡器，用于对候选信号进行信道均衡，基于 提取的同步信息; 多个SNR测量单元，用于测量输入到辅助均衡器的候选信号的信噪比（SNR）和在辅助均衡器中均衡的候选信号; 以及最优信号选择器，用于通过使用所提取的同步信息和测量的SNR从候选信号中选择最佳候选信号，并且当当前最佳信号的接收质量差时，用最佳候选信号替换最佳信号。

公开(公告)号：US20080291336A1

公开(公告)日：2008-11-27

申请号：US12096641

申请日：2006-11-07

申请人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B7/08

CPC分类号： H04B7/0814 ,  H04L25/03012 ,  H04L2025/03426 ,  H04L2025/03535

摘要： Provided are an apparatus and method for selecting an optimal signal using auxiliary equalization in a diversity receiver. The optimal signal selecting apparatus includes: a plurality of sync recovery units for extracting sync information from baseband signals, which are candidate signals, except a baseband signal selected as a current optimal signal a plurality of auxiliary equalizers for channel-equalizing the candidate signals based on the extracted sync information; a plurality of SNR measuring units for measuring signal-to-noise ratios (SNRs) of the candidate signals inputted to the auxiliary equalizers and the candidates signals equalized in the auxiliary equalizers; and an optimal signal selector for selecting an optimal candidate signal from the candidate signals by using the extracted sync information and the measured SNRs, and replacing the optimal signal with the optimal candidate signal when reception quality of the current optimal signal is poor.

摘要翻译： 提供了一种用于在分集接收机中使用辅助均衡来选择最佳信号的装置和方法。 最佳信号选择装置包括：多个同步恢复单元，用于从作为候选信号的基带信号中提取同步信息，除了选择为当前最优信号的基带信号，多个辅助均衡器，用于对候选信号进行信道均衡，基于 提取的同步信息; 多个SNR测量单元，用于测量输入到辅助均衡器的候选信号的信噪比（SNR）和在辅助均衡器中均衡的候选信号; 以及最优信号选择器，用于通过使用所提取的同步信息和测量的SNR从候选信号中选择最佳候选信号，并且当当前最佳信号的接收质量差时，用最佳候选信号替换最佳信号。

公开(公告)号：US20110107376A1

公开(公告)日：2011-05-05

申请号：US12904639

申请日：2010-10-14

申请人： Dong-hoon LEE ,  Ju-yeun KIM ,  Ki-bo KIM

发明人： Dong-hoon LEE ,  Ju-yeun KIM ,  Ki-bo KIM

IPC分类号： H04N5/445

CPC分类号： H04N5/46 ,  H04N5/50 ,  H04N21/4345 ,  H04N21/4622

摘要： Method and apparatus for managing channels for a plurality of digital broadcasting methods. The method of managing channels comprises: detecting broadcasting channels which correspond to at least one broadcasting method predetermined from a plurality of digital broadcasting methods with respect to each physical channel in a predetermined reception range; and storing channel information of the detected broadcasting channels in a memory. Accordingly, an efficient and convenient method of managing channels is provided in a plurality of digital broadcasting standards.

摘要翻译： 用于管理多个数字广播方法的频道的方法和装置。 管理信道的方法包括：在预定的接收范围内，检测对应于从多个数字广播方式预先确定的至少一种广播方式相对于每个物理信道的广播信道; 并将检测到的广播频道的频道信息存储在存储器中。 因此，在多个数字广播标准中提供了一种管理频道的有效方便的方法。

公开(公告)号：US07408982B2

公开(公告)日：2008-08-05

申请号：US10425837

申请日：2003-04-30

申请人： Hyun-Bae Jeon ,  Dong-Seog Han ,  Hae-Sock Oh ,  Ju-Yeun Kim ,  Do-Jun Rhee ,  Ji-Sun Shin

发明人： Hyun-Bae Jeon ,  Dong-Seog Han ,  Hae-Sock Oh ,  Ju-Yeun Kim ,  Do-Jun Rhee ,  Ji-Sun Shin

IPC分类号： H03H7/30

CPC分类号： H04N5/211 ,  H04L2025/03382 ,  H04L2025/0349 ,  H04L2025/0377 ,  H04N5/4401 ,  H04N11/002

摘要： An equalizer and an equalization method usable in a high definition television (HDTV) are provided. The equalizer may receive an input signal including a data signal and a training sequence and may compensate for distortion of the input signal in a high definition television. The equalizer may include an input signal reuse unit, a filter unit, and an error calculation unit. The error calculation unit may receive an equalizer output signal, may estimate the equalizer output signal at an estimate value, may generate the estimate value as a decision value, and may output a difference between the equalizer output signal and the decision value as the error signal.

摘要翻译： 提供了可用于高分辨率电视（HDTV）的均衡器和均衡方法。 均衡器可以接收包括数据信号和训练序列的输入信号，并且可以补偿高分辨率电视机中的输入信号的失真。 均衡器可以包括输入信号重用单元，滤波器单元和误差计算单元。 误差计算单元可以接收均衡器输出信号，可以以估计值估计均衡器输出信号，可以将估计值生成为判定值，并且可以将均衡器输出信号和判定值之间的差作为误差信号输出 。

公开(公告)号：US07746968B2

公开(公告)日：2010-06-29

申请号：US11722036

申请日：2005-07-04

申请人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B7/10

CPC分类号： H01Q25/00 ,  H04B7/088 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/42638

摘要： Provided are a beam combining and hybrid beam selection method that can improve digital broadcasting reception performance by combining more than two beam output signals (beam combination type) instead of simply selecting one of beam output signals (beam selection type), or even selecting an optimal method between the beam selection type and the beam combination type, and a digital broadcasting receiving apparatus using the same.

摘要翻译： 提供了一种通过组合两个以上的光束输出信号（光束组合型）而不是简单地选择光束输出信号（光束选择型）中的一种，或者甚至选择最优的光束组合和混合光束选择方法来提高数字广播接收性能 波束选择类型和波束组合类型之间的方法以及使用它们的数字广播接收装置。

公开(公告)号：US07742538B2

公开(公告)日：2010-06-22

申请号：US11720323

申请日：2005-11-25

申请人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0897 ,  H04B7/0408 ,  H04B7/086 ,  H04L25/0206

摘要： There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams.

摘要翻译： 提供了一种用于选择最佳波束以改善数字广播接收性能的方法，以及使用该方法的数字广播接收装置。 该方法包括以下步骤：a）基于根据天线输出信号的转向方向形成的多个波束的信道脉冲响应，计算主路径信号与多路径信号和噪声比（SMNR），其中输出信号 每个天线根据天线元件的位置具有不同的相移; b）通过比较所计算的各个光束的SMNR值来选择具有高SMNR值的预定数量的光束; c）基于对应于所选择的波束的信道脉冲响应来计算主路径信号到主导多径信号比（SDMR）; 以及d）通过比较在选择预定数量的光束中计算的SDMR值来选择具有最大SDMR值的光束输出信号。

公开(公告)号：US20080205537A1

公开(公告)日：2008-08-28

申请号：US11720323

申请日：2005-11-25

申请人： Ju-yeun Kim ,  Young-Su Kim ,  Jae-hwui Bae ,  Hyun Lee ,  Jong-soo Lim ,  Soo-In Lee

发明人： Ju-yeun Kim ,  Young-Su Kim ,  Jae-hwui Bae ,  Hyun Lee ,  Jong-soo Lim ,  Soo-In Lee

IPC分类号： H04N7/015

CPC分类号： H04B7/0897 ,  H04B7/0408 ,  H04B7/086 ,  H04L25/0206

摘要： There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams.

摘要翻译： 提供了一种用于选择最佳波束以改善数字广播接收性能的方法，以及使用该方法的数字广播接收装置。 该方法包括以下步骤：a）基于根据天线输出信号的转向方向形成的多个波束的信道脉冲响应，计算主路径信号与多径信号和噪声比（SMNR），其中输出信号 每个天线根据天线元件的位置具有不同的相移; b）通过比较所计算的各个光束的SMNR值来选择具有高SMNR值的预定数量的光束; c）基于对应于所选择的波束的信道脉冲响应来计算主路径信号到主导多径信号比（SDMR）; 以及d）通过比较在选择预定数量的光束中计算的SDMR值来选择具有最大SDMR值的光束输出信号。

公开(公告)号：US20080092194A1

公开(公告)日：2008-04-17

申请号：US11722036

申请日：2005-07-04

申请人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Ju-Yeun Kim ,  Young-Su Kim ,  Jae-Hwui Bae ,  Hyun Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04N7/173

CPC分类号： H01Q25/00 ,  H04B7/088 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/42638

摘要： Provided are a beam combining and hybrid beam selection method that can improve digital broadcasting reception performance by combining more than two beam output signals (beam combination type) instead of simply selecting one of beam output signals (beam selection type), or even selecting an optimal method between the beam selection type and the beam combination type, and a digital broadcasting receiving apparatus using the same. The beam selecting method includes: a) calculating SMNRs (mainpath signal to multipath signal and noise ratios) with respect to a plurality of beam output signals, formed according to directions from a plurality of antenna output signals whose phases are shifted depending on arrangement positions of array antennas, by using corresponding channel impulse responses; b) selecting a first predetermined number of beam output signals according to magnitudes of the SMNRs by comparing the calculated SMNRs with respect to the respective beam output signals; c) calculating a delay time between mainpath signals of the selected beam output signals, and generating a combined beam output signal by combining the two beam output signals by adjusting the calculated delay time; d) when the SMNR of the combined beam output signal is less than the maximal SMNR of the selected beam output signals, calculating an SDMR (mainpath signal to dominant multipath signal ratio) with respect to the respective beam output signals, and selecting a beam output signal having the greatest SDMR; and e) calculating an SMNR of the combined beam output signal using channel impulse response of the combined beam output signal, and comparing the calculated SMNR with a maximal value among the SMNRs of the selected beam output signals; and f) when the SMNR of the combined beam output signal is greater than or equal to the maximal SMNR of the selected output signals, selecting the combined beam output signal generated in step c).