专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07301994B2 Modulation apparatus for reducing time delay of on-channel repeater in terrestrial digital TV broadcasting system 有权
标题翻译：用于减少地面数字电视广播系统中的同频中继器的时延的调制装置
公开(公告)号：US07301994B2
公开(公告)日：2007-11-27
申请号：US10839315
申请日：2004-05-04
申请人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04B3/36
CPC分类号： H04H20/72 , H04H20/02 , H04N5/40
摘要： Provided is a modulation apparatus that can reduce time delay of on-channel repeaters in a terrestrial digital television broadcasting system. The time delay is caused by a filter during the modulation operation in the on-channel repeaters. The modulation apparatus of the present research includes: a baseband signal forming unit for forming a baseband signal by combining the output signals of an equalization unit with the pre-defined field/segment synchronization signals in the on-channel repeaters; a pilot inserting unit for inserting a pilot signal to the baseband signal; an up-sampling unit for up-sampling the baseband signal with the pilot signal; a VSB filtering unit for filtering the up-sampled baseband signal based on a Window technique and/or an Equi-Ripple filter to thereby form an in-phase (I) signal and a quadrature (Q) signal; an up-converting unit for up-converting the frequencies of the filtered I and Q signals to frequencies of an intermediate frequency (IF) band; an adding unit for adding the up-converted I and Q signals and converting a resultant signal into a digital VSB signal of the IF band; and a digital-to-analogue converting unit for converting the digital signal of the IF band to an analogue signal.
摘要翻译：提供了一种可以减少地面数字电视广播系统中的通道中继器的时间延迟的调制装置。在通道中继器的调制操作期间，时间延迟是由滤波器引起的。本研究的调制装置包括：基带信号形成单元，用于通过将均衡单元的输出信号与在线通道中继器中的预定义的场/段同步信号组合来形成基带信号; 导频插入单元，用于将导频信号插入到基带信号中; 用于使用导频信号对基带信号进行上采样的上采样单元; VSB滤波单元，用于基于Window技术和/或Equi-Ripple滤波器对上采样基带信号进行滤波，从而形成同相（I）信号和正交（Q）信号; 上变频单元，用于将滤波的I和Q信号的频率上变频到中频（IF）频带的频率; 加法单元，用于将上变频的I和Q信号相加，并将结果信号转换成IF频带的数字VSB信号; 以及用于将IF频带的数字信号转换为模拟信号的数模转换单元。

22. 发明申请

US20070041434A1 Apparatus and method of on-channel repeater 失效
标题翻译：通道中继器的装置和方法
公开(公告)号：US20070041434A1
公开(公告)日：2007-02-22
申请号：US10577532
申请日：2004-10-29
申请人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04B3/36
CPC分类号： H04H20/06 , H04B7/15564 , H04N5/211 , H04N5/38
摘要： Provided is an on-channel repeater and method thereof. The on-channel repeating apparatus includes: a receiving unit for receiving a Radio Frequency (RF) broadcast signal; a demodulating unit for converting the RF signal into a baseband signal; an equalizing unit for equalizing the baseband signal to generate an equalized baseband signal; a modulating unit for converting the equalized baseband signal into an RF signal; and a transmitting unit for transmitting the RF signal.
摘要翻译：提供一种同频中继器及其方法。所述在线中继装置包括：接收单元，用于接收射频（RF）广播信号; 解调单元，用于将RF信号转换成基带信号; 用于均衡基带信号以产生均衡的基带信号的均衡单元; 调制单元，用于将均衡的基带信号转换成RF信号; 以及发送单元，用于发送RF信号。

23. 发明申请

US20050094750A1 Demodulation apparatus and method for reducing time delay of on-channel repeater in terrestrial digital TV broadcasting system 审中-公开
标题翻译：用于减少地面数字电视广播系统中的同频中继器的时延的解调装置和方法
公开(公告)号：US20050094750A1
公开(公告)日：2005-05-05
申请号：US10832901
申请日：2004-04-26
申请人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04N7/015 , H04B1/10 , H04H20/06 , H04L27/06 , H04L27/14 , H04N5/21 , H04N5/38 , H04N5/455
CPC分类号： H04H20/06 , H04B7/15564 , H04N5/211 , H04N5/38
摘要： Provided is a demodulation apparatus capable of reducing time delay of an on-channel repeater in a terrestrial digital television (TV) broadcasting system and a demodulation method thereof. The demodulation method includes the steps of a) converting an analogue intermediate frequency (IF) signal into a digital IF signal; b) generating an in-phase (I) signal and a quadrature (Q) signal by converting the frequency of the digital IF signals and down-converting the frequencies of the pilot components of the I and Q signals so that the center frequencies of the I and Q signals could be shifted to 0; c) filtering the down-converted I and Q signals and maximizing signal-to-noise ratio; d) up-converting the filtered I and Q signals into baseband signals in which the center frequencies of the filtered I and Q signals are placed in baseband and shifting the frequency of the pilot components of the filtered I and Q signals to 0; and e) adding up the up-converted I and Q signals to restore the signals into baseband signals for broadcasting.
摘要翻译：提供了能够减少地面数字电视（TV）广播系统中的同频中继器的时间延迟的解调装置及其解调方法。解调方法包括以下步骤：a）将模拟中频（IF）信号转换成数字IF信号; b）通过转换数字IF信号的频率并对I和Q信号的导频分量的频率进行下变频来产生同相（I）信号和正交（Q）信号，使得 I和Q信号可以转移到0; c）对下变频的I和Q信号进行滤波并使信噪比最大化; d）将经滤波的I和Q信号上变频成基带信号，其中将滤波的I和Q信号的中心频率置于基带中，并将滤波的I和Q信号的导频分量的频率移位到0; e）将上变频的I和Q信号相加，将信号恢复成基带信号进行广播。

24. 发明申请

US20050094717A1 Modulation apparatus for reducing time delay of on-channel repeater in terrestrial digital TV broadcasting system 有权
标题翻译：用于减少地面数字电视广播系统中的同频中继器的时延的调制装置
公开(公告)号：US20050094717A1
公开(公告)日：2005-05-05
申请号：US10839315
申请日：2004-05-04
申请人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04N7/015 , H04B17/40 , H04H20/72 , H04L27/12 , H04N5/40 , H04N7/24 , H04B17/02
CPC分类号： H04H20/72 , H04H20/02 , H04N5/40
摘要： Provided is a modulation apparatus that can reduce time delay of on-channel repeaters in a terrestrial digital television broadcasting system. The time delay is caused by a filter during the modulation operation in the on-channel repeaters. The modulation apparatus of the present research includes: a baseband signal forming unit for forming a baseband signal by combining the output signals of an equalization unit with the pre-defined field/segment synchronization signals in the on-channel repeaters; a pilot inserting unit for inserting a pilot signal to the baseband signal; an up-sampling unit for up-sampling the baseband signal with the pilot signal; a VSB filtering unit for filtering the up-sampled baseband signal based on a Window technique and/or an Equi-Ripple filter to thereby form an in-phase (I) signal and a quadrature (Q) signal; an up-converting unit for up-converting the frequencies of the filtered I and Q signals to frequencies of an intermediate frequency (IF) band; an adding unit for adding the up-converted I and Q signals and converting a resultant signal into a digital VSB signal of the IF band; and a digital-to-analogue converting unit for converting the digital signal of the IF band to an analogue signal.
摘要翻译：提供了一种可以减少地面数字电视广播系统中的通道中继器的时间延迟的调制装置。在通道中继器的调制操作期间，时间延迟是由滤波器引起的。本研究的调制装置包括：基带信号形成单元，用于通过将均衡单元的输出信号与在线通道中继器中的预定义的场/段同步信号组合来形成基带信号; 导频插入单元，用于将导频信号插入到基带信号中; 用于使用导频信号对基带信号进行上采样的上采样单元; VSB滤波单元，用于基于Window技术和/或Equi-Ripple滤波器对上采样基带信号进行滤波，从而形成同相（I）信号和正交（Q）信号; 上变频单元，用于将滤波的I和Q信号的频率上变频到中频（IF）频带的频率; 加法单元，用于将上变频的I和Q信号相加，并将结果信号转换成IF频带的数字VSB信号; 以及用于将IF频带的数字信号转换为模拟信号的数模转换单元。

25. 发明申请

US20110111722A1 IDENTIFICATION SIGNAL ANALYZING APPARATUS AND METHOD FOR COMPENSATING FOR SEPARATION AND ATTENUATION OF CHANNEL PROFILE 有权
标题翻译：识别信号分析装置和用于分离和衰减通道配置文件的方法
公开(公告)号：US20110111722A1
公开(公告)日：2011-05-12
申请号：US12676656
申请日：2008-05-15
申请人： Jae-Young Lee , Sung-Ik Park , Ho-Min Eum , Jae-Hyun Seo , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
发明人： Jae-Young Lee , Sung-Ik Park , Ho-Min Eum , Jae-Hyun Seo , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
IPC分类号： H04B1/16
CPC分类号： H04H20/12 , H04H20/06
摘要： Provided is an identification signal analyzing apparatus and method for compensating power of a channel profile occurring at a conventional identification signal analyzing apparatus by using a power compensation. The identification signal analyzing apparatus includes: an identification signal generator for generating an identification signal identical to a known identification signal inserted by a transmission device; a partial correlator for calculating a correlation value between a received signal including the known identification signal inserted by the transmission device and the identification signal generated by the identification signal generator through a partial correlation; a power compensator for compensating power of the correlation value calculated by the partial correlator; and a channel profile extractor for extracting a channel profile from the correlation value compensated by the power compensator.
摘要翻译：提供一种识别信号分析装置和方法，用于通过使用功率补偿来补偿在常规识别信号分析装置发生的信道分布的功率。识别信号分析装置包括：识别信号发生器，用于产生与由传输装置插入的已知识别信号相同的识别信号; 一个部分相关器，用于计算包括由发送装置插入的已知识别信号的接收信号与由识别信号发生器通过部分相关产生的识别信号之间的相关值; 功率补偿器，用于补偿由所述部分相关器计算出的相关值的功率; 以及用于从由功率补偿器补偿的相关值中提取信道分布的信道分布提取器。

26. 发明授权

US08681911B2 Identification signal analyzing apparatus and method for compensating for separation and attenuation of channel profile 有权
标题翻译：识别信号分析装置和补偿信道分布衰减的方法
公开(公告)号：US08681911B2
公开(公告)日：2014-03-25
申请号：US12676656
申请日：2008-05-15
申请人： Jae-Young Lee , Sung-Ik Park , Ho-Min Eum , Jae-Hyun Seo , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
发明人： Jae-Young Lee , Sung-Ik Park , Ho-Min Eum , Jae-Hyun Seo , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
IPC分类号： H03D1/00
CPC分类号： H04H20/12 , H04H20/06
摘要： Provided is an identification signal analyzing apparatus and method for compensating power of a channel profile occurring at a conventional identification signal analyzing apparatus by using a power compensation. The identification signal analyzing apparatus includes: an identification signal generator for generating an identification signal identical to a known identification signal inserted by a transmission device; a partial correlator for calculating a correlation value between a received signal including the known identification signal inserted by the transmission device and the identification signal generated by the identification signal generator through a partial correlation; a power compensator for compensating power of the correlation value calculated by the partial correlator; and a channel profile extractor for extracting a channel profile from the correlation value compensated by the power compensator.
摘要翻译：提供一种识别信号分析装置和方法，用于通过使用功率补偿来补偿在常规识别信号分析装置发生的信道分布的功率。识别信号分析装置包括：识别信号发生器，用于产生与由传输装置插入的已知识别信号相同的识别信号; 一个部分相关器，用于计算包括由发送装置插入的已知识别信号的接收信号与由识别信号发生器通过部分相关产生的识别信号之间的相关值; 功率补偿器，用于补偿由所述部分相关器计算出的相关值的功率; 以及用于从由功率补偿器补偿的相关值中提取信道分布的信道分布提取器。

27. 发明授权

US08514960B2 Apparatus and method for compensating feedback path distortion 失效
标题翻译：用于补偿反馈路径失真的装置和方法
公开(公告)号：US08514960B2
公开(公告)日：2013-08-20
申请号：US12517924
申请日：2007-12-05
申请人： Jae-Hyun Seo , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Jae-Young Lee , Jong-Soo Lim , Soo-In Lee
发明人： Jae-Hyun Seo , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Jae-Young Lee , Jong-Soo Lim , Soo-In Lee
IPC分类号： H04B7/02
CPC分类号： H04L25/03343 , H04H20/72 , H04L2025/03382
摘要： Provided are an apparatus and method for compensating a feedback path distortion in a digital broadcasting signal. The apparatus for improving a performance of a pre-equalizer in a transmitter of a digital broadcasting system having a feedback path for adaptively generating a filter coefficient of the pre-equalizer, includes a reference signal generator for generating a reference radio frequency (RF) signal, a feedback path estimator for estimating transmission band characteristic information for the feedback path based on the reference RF signal generated from the reference signal generator, and a feedback path compensator for compensating a demodulated signal transferred through the feedback path based on the estimated transmission band characteristic information from the feedback path estimator and generating a filter coefficient of the pre-equalizer.
摘要翻译：提供了一种用于补偿数字广播信号中的反馈路径失真的装置和方法。用于提高具有用于自适应地生成预均衡器的滤波器系数的反馈路径的数字广播系统的发送机中的前置均衡器的性能的装置包括：参考信号发生器，用于产生参考射频（RF）信号基于从参考信号发生器产生的参考RF信号估计用于反馈路径的传输频带特性信息的反馈路径估计器，以及用于基于所估计的传输频带特性补偿通过反馈路径传送的解调信号的反馈路径补偿器来自反馈路径估计器的信息并产生预均衡器的滤波器系数。

28. 发明申请

US20130129015A1 METHOD AND APPARATUS FOR TRANSCEIVING A BROADCAST SIGNAL IN A DIGITAL BROADCAST SYSTEM 审中-公开
标题翻译：用于在数字广播系统中收发广播信号的方法和装置
公开(公告)号：US20130129015A1
公开(公告)日：2013-05-23
申请号：US13813267
申请日：2011-07-29
申请人： Jae-Hyun Seo , Heung-Mook Kim , Sung-Ik Park , Ho-Min Eum , Hyoungsoo Lim , Soo-In Lee
发明人： Jae-Hyun Seo , Heung-Mook Kim , Sung-Ik Park , Ho-Min Eum , Hyoungsoo Lim , Soo-In Lee
IPC分类号： H04H20/00
CPC分类号： H04H20/00 , H04H20/28 , H04H60/07 , H04N7/08 , H04N21/84 , Y02D70/168
摘要： The present invention relates to a method and apparatus for transceiving a broadcast signal in a digital broadcast system. The method for transmitting a broadcast signal according to one embodiment of the present invention comprises the following steps: generating a main signal using main data; generating an additional signal, the power of which is lower than that of the main signal, using a plurality of additional data; generating an additional signal frame using the additional signal and a frame header; and generating a broadcast signal using the main signal and an additional signal frame. The frame header is used in selectively extracting the plurality of additional data from the additional signal frame. According to the present invention, additional data can be efficiently transmitted while maintaining compatibility with existing digital broadcasting systems.
摘要翻译：本发明涉及用于在数字广播系统中收发广播信号的方法和装置。根据本发明的一个实施例的用于发送广播信号的方法包括以下步骤：使用主数据产生主信号; 使用多个附加数据产生其功率低于主信号的功率的附加信号; 使用附加信号和帧头生成附加信号帧; 以及使用主信号和附加信号帧产生广播信号。帧头用于从附加信号帧中选择性地提取多个附加数据。根据本发明，可以有效地发送附加数据，同时保持与现有数字广播系统的兼容性。

29. 发明申请

US20110013688A1 APPARATUS AND METHOD FOR COMPENSATING FEEDBACK PATH DISTORTION 失效
标题翻译：用于补偿反馈路径失真的装置和方法
公开(公告)号：US20110013688A1
公开(公告)日：2011-01-20
申请号：US12517924
申请日：2007-12-05
申请人： Jae-Hyun Seo , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Jae-Young Lee , Jong-Soo Lim , Soo-In Lee
发明人： Jae-Hyun Seo , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Jae-Young Lee , Jong-Soo Lim , Soo-In Lee
IPC分类号： H03K5/159
CPC分类号： H04L25/03343 , H04H20/72 , H04L2025/03382
摘要： Provided are an apparatus and method for compensating a feedback path distortion in a digital broadcasting signal. The apparatus for improving a performance of a pre-equalizer in a transmitter of a digital broadcasting system having a feedback path for adaptively generating a filter coefficient of the pre-equalizer, includes a reference signal generator for generating a reference radio frequency (RF) signal, a feedback path estimator for estimating transmission band characteristic information for the feedback path based on the reference RF signal generated from the reference signal generator, and a feedback path compensator for compensating a demodulated signal transferred through the feedback path based on the estimated transmission band characteristic information from the feedback path estimator and generating a filter coefficient of the pre-equalizer.
摘要翻译：提供了一种用于补偿数字广播信号中的反馈路径失真的装置和方法。用于提高具有用于自适应地生成预均衡器的滤波器系数的反馈路径的数字广播系统的发送机中的前置均衡器的性能的装置包括：参考信号发生器，用于产生参考射频（RF）信号基于从参考信号发生器产生的参考RF信号估计用于反馈路径的传输频带特性信息的反馈路径估计器，以及用于基于所估计的传输频带特性补偿通过反馈路径传送的解调信号的反馈路径补偿器来自反馈路径估计器的信息并产生预均衡器的滤波器系数。

30. 发明申请

US20100091908A1 APPARATUS AND METHOD FOR ANALYZING IDENTIFICATION SIGNAL BASED ON PARTIAL CORRELATION 有权
标题翻译：基于部分关联分析识别信号的装置和方法
公开(公告)号：US20100091908A1
公开(公告)日：2010-04-15
申请号：US12447736
申请日：2007-10-12
申请人： Sung-Ik Park , Jae-Young Lee , Jae-Hyun Seo , Ho-Min Eum , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
发明人： Sung-Ik Park , Jae-Young Lee , Jae-Hyun Seo , Ho-Min Eum , Heung-Mook Kim , Jong-Soo Lim , Soo-In Lee
IPC分类号： H04L27/22 , H04L27/00
CPC分类号： H04H20/06 , H04B1/707 , H04B7/15528 , H04H20/12 , H04H60/41
摘要： Provided is an apparatus and method for analyzing identification (ID) signals by converting radio frequency (RF) signals which are transmitted with an ID signal added thereto by a transmitting part, e.g., a plurality of transmitters or repeaters, into signals of a desired band; creating ID signals that are identical to the ID signals added to the RF signals; calculating correlation values between the converted signals and the created ID signals based on partial correlation; and extracting channel profile of multi-path signals caused by a channel between the transmitting part and the ID signal analyzing apparatus from the correlation value. The technology of the present research is applied to broadcasting and communication.
摘要翻译：提供了一种用于通过将由发射部分（例如多个发射器或中继器）附加的ID信号发射的射频（RF）信号转换成期望频带的信号来分析识别（ID）信号的装置和方法 ; 创建与添加到RF信号的ID信号相同的ID信号; 基于部分相关来计算转换后的信号与所创建的ID信号之间的相关值; 以及从所述相关值提取由所述发送部分和所述ID信号分析装置之间的信道引起的多径信号的信道简档。本研究的技术应用于广播和通信。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式