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    • 41. 发明申请
    • Modulation apparatus for reducing time delay of on-channel repeater in terrestrial digital TV broadcasting system
    • 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
    • US20050094717A1
    • 2005-05-05
    • US10839315
    • 2004-05-04
    • Sung-Ik ParkYong-Tae LeeJae-Hyun SeoSeung-Won KimSoo-In Lee
    • Sung-Ik ParkYong-Tae LeeJae-Hyun SeoSeung-Won KimSoo-In Lee
    • H04N7/015H04B17/40H04H20/72H04L27/12H04N5/40H04N7/24H04B17/02
    • H04H20/72H04H20/02H04N5/40
    • 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.
    • 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。
    • 42. 发明授权
    • Method and apparatus for transmitting/receiving broadcasting-communication data
    • 用于发送/接收广播通信数据的方法和装置
    • US08654886B2
    • 2014-02-18
    • US12994827
    • 2009-05-29
    • Sung-Ik ParkHyoungsoo LimHeung-Mook KimSoo-In Lee
    • Sung-Ik ParkHyoungsoo LimHeung-Mook KimSoo-In Lee
    • H01L27/04H04B1/66
    • H04H40/18H04B1/709H04L1/0041H04L1/0047H04L1/0057H04L1/0065H04L1/0071H04L2001/0093H04W52/322
    • An apparatus for transmitting and receiving broadcasting-communication data, the apparatus including an original signal generator configured to receive the original data and generate baseband original signals, a first modulator configured to receive the baseband additional signals and generate original signals of a predetermined band, an additional signal generator configured to receive the additional data and generate baseband additional signals, a second modulator configured to receive the baseband additional signals and generate additional signals of a predetermined band, an average power controller configured to control an average power of the additional signals of the predetermined band, an inserter configured to insert the additional signals of the predetermined band with a controlled average power to the original signals of the predetermined band to thereby generate mixed signals of a predetermined band, and a transmitter configured to transmit the mixed signals of the predetermined band.
    • 一种用于发送和接收广播通信数据的装置,所述装置包括被配置为接收原始数据并生成基带原始信号的原始信号发生器,被配置为接收基带附加信号并生成预定频带的原始信号的第一调制器, 附加信号发生器,被配置为接收附加数据并产生基带附加信号,第二调制器被配置为接收基带附加信号并产生预定频带的附加信号,平均功率控制器被配置为控制所述附加信号的平均功率 预定频带,插入器,被配置为以预定频带的原始信号插入具有受控平均功率的预定频带的附加信号,从而产生预定频带的混合信号;以及发射机,被配置为发送预定频带的混合信号 内带。
    • 43. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING BROADCASTING-COMMUNICATION DATA
    • 用于发送/接收广播通信数据的方法和装置
    • US20110075710A1
    • 2011-03-31
    • US12994827
    • 2009-05-29
    • Sung-Ik ParkHyoungsoo LimHeung-Mook KimSoo-In Lee
    • Sung-Ik ParkHyoungsoo LimHeung-Mook KimSoo-In Lee
    • H04L27/00H04B1/707H04B1/709
    • H04H40/18H04B1/709H04L1/0041H04L1/0047H04L1/0057H04L1/0065H04L1/0071H04L2001/0093H04W52/322
    • A method and apparatus for transmitting/receiving broadcasting-communication data is provided. The apparatus includes: an original signal generator configured to receive the original data and generate baseband original signals; a first modulator configured to receive the baseband additional signals and generate original signals of a predetermined band; an additional signal generator configured to receive the additional data and generate baseband additional signals; a second modulator configured to receive the baseband additional signals and generate additional signals of a predetermined band; an average power controller configured to control an average power of the additional signals of the predetermined band; an inserter configured to insert the additional signals of the predetermined band with a controlled average power to the original signals of the predetermined band to thereby generate mixed signals of a predetermined band; and a transmitter configured to transmit the mixed signals of the predetermined band.
    • 提供了一种用于发送/接收广播通信数据的方法和装置。 该装置包括:原始信号发生器,被配置为接收原始数据并产生基带原始信号; 第一调制器,被配置为接收基带附加信号并产生预定频带的原始信号; 配置成接收附加数据并产生基带附加信号的附加信号发生器; 第二调制器,被配置为接收所述基带附加信号并产生预定频带的附加信号; 平均功率控制器,被配置为控制所述预定频带的附加信号的平均功率; 插入器,被配置为以预定频带的原始信号插入具有受控平均功率的预定频带的附加信号,从而产生预定频带的混合信号; 以及发送器,被配置为发送预定频带的混合信号。
    • 45. 发明申请
    • APPARATUS AND METHOD FOR MEASURING INDIVIDUAL RECEIVING POWER USING IDENTIFICATION SIGNAL
    • 使用识别信号测量个人接收电力的装置和方法
    • US20110170585A1
    • 2011-07-14
    • US13120756
    • 2009-04-13
    • Sung-Ik ParkHeung-Mook KimSoo-In Lee
    • Sung-Ik ParkHeung-Mook KimSoo-In Lee
    • H04B17/00
    • H04B7/2606
    • Provided is an apparatus and method for measuring an individual receiving power using an identification signal of a repeater or a transmitter. The apparatus and method includes a total receiving power measuring unit for measuring a total receiving power from transmitters; an identification signal analyzing unit for extracting a channel profile signal from the signal transmitted from the predetermined transmitter through a multi-path, wherein the predetermined transmitter transmits a signal having the identification signal; and an individual receiving power calculating unit for calculating an individual receiving power from the transmitter based on the measured total receiving power and the extracted channel profile signal.
    • 提供了一种使用中继器或发射机的识别信号来测量各个接收功率的装置和方法。 该装置和方法包括用于测量来自发射机的总接收功率的总接收功率测量单元; 识别信号分析单元,用于从通过多路径从所述预定发射机发送的信号中提取信道分布信号,其中,所述预定发射机发送具有所述识别信号的信号; 以及个体接收功率计算单元,用于基于所测量的总接收功率和所提取的信道分布信号来计算来自发射机的各个接收功率。