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：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).

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：US08619987B2

公开(公告)日：2013-12-31

申请号：US11909543

申请日：2005-11-04

申请人： Chung-Pyo Hong ,  Tae-June Chae ,  Won-Jin Park ,  Hyun Lee ,  Soo-In Lee ,  Gwang-Soon Lee ,  Bong-Ho Lee ,  Jong-Soo Lim

发明人： Chung-Pyo Hong ,  Tae-June Chae ,  Won-Jin Park ,  Hyun Lee ,  Soo-In Lee ,  Gwang-Soon Lee ,  Bong-Ho Lee ,  Jong-Soo Lim

IPC分类号： H04N7/167

CPC分类号： H04N7/165 ,  H04H20/06 ,  H04H20/67 ,  H04H60/21 ,  H04H60/23 ,  H04N21/2347 ,  H04N21/25875 ,  H04N21/4405 ,  H04N21/6131

摘要： Disclosed is a system for transmitting encrypted broadcast signals to different transmitters on a single frequency network (SFN) in a digital broadcasting system. The system for transmitting encrypted broadcast signals on the SFN includes: a main broadcasting system for transmitting encrypted broadcast signals including data streams and transmitter identification information (TII) through a main broadcasting network; a repeating system for amplifying encrypted broadcast signals of the main broadcasting network and transmitting the amplified broadcast signals, or modulating and amplifying streams input by the main broadcasting system through a private line and repeating broadcast signals of the main broadcasting system through a repeating network; and a decrypting key provider for receiving a decrypting key value from the main broadcasting or repeating system and transmitting a user authentication and decrypting key to a charged subscriber terminal through a mobile communication network.

摘要翻译： 公开了一种用于在数字广播系统中的单个频率网络（SFN）上向不同发射机发送加密的广播信号的系统。 用于在SFN上发送加密广播信号的系统包括：主广播系统，用于通过主广播网络发送包括数据流和发射机识别信息（TII）的加密广播信号; 用于放大主广播网络的加密广播信号并发送放大的广播信号的重复系统，或者通过专线调制和放大由主广播系统输入的流，并通过重复网络重复主广播系统的广播信号; 以及解密密钥提供者，用于从主广播或重复系统接收解密密钥值，并通过移动通信网络向用户终端发送用户认证和解密密钥。

公开(公告)号：US20100177895A1

公开(公告)日：2010-07-15

申请号：US11909543

申请日：2005-11-04

申请人： Chung-Pyo Hong ,  Tae-June Chae ,  Won-Jin Park ,  Hyun Lee ,  Soo-In Lee ,  Gwang-Soon Lee ,  Bong-Ho Lee ,  Jong-Soo Lim

发明人： Chung-Pyo Hong ,  Tae-June Chae ,  Won-Jin Park ,  Hyun Lee ,  Soo-In Lee ,  Gwang-Soon Lee ,  Bong-Ho Lee ,  Jong-Soo Lim

IPC分类号： H04L9/00 ,  H04N7/16

CPC分类号： H04N7/165 ,  H04H20/06 ,  H04H20/67 ,  H04H60/21 ,  H04H60/23 ,  H04N21/2347 ,  H04N21/25875 ,  H04N21/4405 ,  H04N21/6131

摘要： Disclosed is a system for transmitting encrypted broadcast signals to different transmitters on a single frequency network (SFN) in a digital broadcasting system. The system for transmitting encrypted broadcast signals on the SFN includes: a main broadcasting system for transmitting encrypted broadcast signals including data streams and transmitter identification information (TII) through a main broadcasting network; a repeating system for amplifying encrypted broadcast signals of the main broadcasting network and transmitting the amplified broadcast signals, or modulating and amplifying streams input by the main broadcasting system through a private line and repeating broadcast signals of the main broadcasting system through a repeating network; and a decrypting key provider for receiving a decrypting key value from the main broadcasting or repeating system and transmitting a user authentication and decrypting key to a charged subscriber terminal through a mobile communication network.

摘要翻译： 公开了一种用于在数字广播系统中的单个频率网络（SFN）上向不同发射机发送加密的广播信号的系统。 用于在SFN上发送加密广播信号的系统包括：主广播系统，用于通过主广播网络发送包括数据流和发射机识别信息（TII）的加密广播信号; 用于放大主广播网络的加密广播信号并发送放大的广播信号的重复系统，或者通过专线调制和放大由主广播系统输入的流，并通过重复网络重复主广播系统的广播信号; 以及解密密钥提供者，用于从主广播或重复系统接收解密密钥值，并通过移动通信网络向用户终端发送用户认证和解密密钥。

公开(公告)号：US07315589B2

公开(公告)日：2008-01-01

申请号：US10749322

申请日：2003-12-31

申请人： Jae-Hwui Bae ,  Jae-Hyun Seo ,  Seung-Won Kim ,  Soo-In Lee

发明人： Jae-Hwui Bae ,  Jae-Hyun Seo ,  Seung-Won Kim ,  Soo-In Lee

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04B7/088 ,  H04N5/211 ,  H04N5/4401 ,  H04N5/455

摘要： There is provided to an apparatus and method for selecting a beam having an optimal channel characteristic among multiple beams, which are formed at a digital TV receiver employing a switched beamforming part. The beam selecting apparatus of the digital TV receiver having a switched beamformer and a channel equalize includes: a correlating unit for calculating cross-correlation values with respect to previous known Field Sync signals and Field Sync signals of beams having energy larger than a predefined value among beams outputted from the switched beamformer; a channel profile extracting unit for extracting multi-path channel profiles of the beams by using the cross-correlation values; an effective signal path searching unit for obtaining the number of effective signal paths having values larger than a predefined threshold based on the channel profiles; and a beam selecting unit for selecting beams of a channel profile having the smallest number of the effective signal paths among the beams outputted from the switched beamforming means as an input beam of the channel equalizer.

摘要翻译： 提供了一种用于选择在多个波束中具有最佳信道特性的波束的装置和方法，其在使用切换波束形成部分的数字TV接收机上形成。 具有切换波束形成器和信道均衡的数字TV接收机的波束选择装置包括：相关单元，用于计算相对于先前已知的场同步信号的互相关值和具有大于预定值的能量的波束​​的场同步信号， 从交换波束形成器输出的波束; 信道简档提取单元，用于通过使用互相关值来提取所述波束的多径信道分布; 有效信号路径搜索单元，用于基于所述信道简档获得具有大于预定阈值的有效信号路径的数量; 以及光束选择单元，用于选择从切换波束形成装置输出的波束中具有最小数目的有效信号路径的波束，作为信道均衡器的输入波束。

公开(公告)号：US08238820B2

公开(公告)日：2012-08-07

申请号：US12507115

申请日：2009-07-22

申请人： Sung-Ik Park ,  Heung-Mook Kim ,  Jae-Young Lee ,  Jae-Hyun Seo ,  Ho-Min Eum ,  Yong-Tae Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Sung-Ik Park ,  Heung-Mook Kim ,  Jae-Young Lee ,  Jae-Hyun Seo ,  Ho-Min Eum ,  Yong-Tae Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B7/14

CPC分类号： H04B7/15585

摘要： Provided is an on-channel repeater, which includes a receiver for receiving radio frequency (RF) signals; a subtractor for subtracting replica from the RF signals to thereby produce output signals of the subtractor; a repeating process unit for performing a repeating process onto the output signals of the subtractor; and a replica generator for calculating replica based on the output signals of the subtractor and the signals obtained after repeating process performed thereon and feeding the replica back to the subtractor.

摘要翻译： 提供一种同信道中继器，其包括用于接收射频（RF）信号的接收机; 减法器，用于从RF信号中减去副本，从而产生减法器的输出信号; 重复处理单元，用于对减法器的输出信号执行重复处理; 以及副本生成器，用于基于减法器的输出信号和在其上执行的重复处理之后获得的信号来计算副本，并将副本送回减法器。