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    • 23. 发明授权
    • Apparatus and method for selecting optimal signal using auxiliary equalization in diversity receiver
    • 在分集接收机中使用辅助均衡来选择最优信号的装置和方法
    • US08180005B2
    • 2012-05-15
    • US12096641
    • 2006-11-07
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • H04B7/10
    • H04B7/0814H04L25/03012H04L2025/03426H04L2025/03535
    • 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.
    • 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。
    • 27. 发明授权
    • Method for selecting optimal beam and apparatus for receiving digital broadcasting signal using the same
    • 用于选择最佳波束的方法和使用该波束的装置接收数字广播信号
    • US07742538B2
    • 2010-06-22
    • US11720323
    • 2005-11-25
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • H04B7/02
    • H04B7/0897H04B7/0408H04B7/086H04L25/0206
    • 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.
    • 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。
    • 29. 发明申请
    • Apparatus and Method for Selecting Optimal Signal Using Auxiliary Equalization in Diversity Receiver
    • 在分集接收机中使用辅助均衡选择最优信号的装置和方法
    • US20080291336A1
    • 2008-11-27
    • US12096641
    • 2006-11-07
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • Ju-Yeun KimYoung-Su KimJae-Hwui BaeHyun LeeJong-Soo LimSoo-In Lee
    • H04B7/08
    • H04B7/0814H04L25/03012H04L2025/03426H04L2025/03535
    • 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.
    • 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。