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61. 发明公开

KR1020090122096A 디지털 멀티미디어 방송 송수신 방법과 장치 失效
标题翻译：传输和接收数字多媒体广播的方法和装置
公开(公告)号：KR1020090122096A
公开(公告)日：2009-11-26
申请号：KR1020080067448
申请日：2008-07-11
申请人： 한국전자통신연구원
发明人： 임종수 , 김영수 , 양규태 , 배재휘 , 배병준 , 김광용 , 윤정일 , 최서미 , 이광순 , 이지봉 , 이수인 , 황승구 , 안치득
IPC分类号： H04N7/015 , H04N7/08 , H04N7/12
CPC分类号： H04L23/02 , H04H20/95 , H04L5/0016 , H04L5/0048 , H04L25/0226
摘要： PURPOSE: A transmitting/receiving method and device for a digital multimedia broadcasting is provided to offer high quality service in high speed movement by applying the OFDM-CDMA transmission technique to the digital multimedia broadcasting system. CONSTITUTION: The pilot signal is generated by mapping the transferred information with the orthogonal code(S610). The pilot signal is diffused to the frequency domain(S630). The expanded pilot signal is modulated and transmitted. The transferred information comprises the transmission parameter for demodulating the received signal by the receiving device. The pilot signal is reiterated and inserted in a plurality of subcarriers.
摘要翻译：目的：提供一种用于数字多媒体广播的发送/接收方法和装置，通过将OFDM-CDMA传输技术应用于数字多媒体广播系统来提供高速移动中的高质量服务。构成：通过用正交码映射传送的信息来生成导频信号（S610）。导频信号扩散到频域（S630）。扩展的导频信号被调制和传输。所传输的信息包括用于由接收装置解调接收到的信号的传输参数。导频信号被重复并插入到多个子载波中。

62. 发明公开

KR1020090062906A 디지털 방송 시스템에서 신호 수신 장치 및 방법 失效
标题翻译：数字广播系统接收信号的装置和方法
公开(公告)号：KR1020090062906A
公开(公告)日：2009-06-17
申请号：KR1020070130390
申请日：2007-12-13
申请人： 한국전자통신연구원
发明人： 배재휘 , 김영수 , 김주연 , 임종수 , 이수인
IPC分类号： H04L27/26 , H04B7/04 , H04B7/02
CPC分类号： H04L1/02 , H04B7/0857 , H04L27/2649
摘要： An apparatus and a method for receiving a signal in a digital broadcasting system are provided to improve a reception rate of a signal by applying a diversity method. A plurality of symbol estimation modules(210) receives a plurality of frequency multiplexing signals and outputs a first hierarchical estimation symbol row and a plurality of second hierarchical estimation symbol rows. A signal processor(220) diversity-signal-processes the plurality of second hierarchical estimation symbol rows and outputs the diversity signal. A first hierarchical symbol demapping unit(230) demaps the first hierarchical estimation symbol row and outputs the first hierarchical estimation demapping signal. A second hierarchical symbol demapping unit(240) demaps the diversity signal and outputs the second hierarchical symbol demapping signal. A first hierarchical decoder(250) channel-decodes the first hierarchical symbol demapping signal and outputs the first hierarchical decoding signal. A second hierarchical decoder(260) channel-decodes the second hierarchical symbol demapping signal and outputs the second hierarchical decoding signal.
摘要翻译：提供一种用于在数字广播系统中接收信号的装置和方法，以通过应用分集方法来提高信号的接收速率。多个符号估计模块（210）接收多个频率复用信号并输出第一分层估计符号行和多个第二分层估计符号行。信号处理器（220）对多个第二分层估计符号行进行分集信号处理，并输出分集信号。第一分层符号解映射单元（230）对第一分层估计符号行进行解映射并输出第一分层估计解映射信号。第二分层符号解映射单元（240）解映射分集信号并输出第二分层符号解映射信号。第一分层解码器（250）对第一分层符号解映射信号进行信道解码并输出第一分层解码信号。第二分层解码器（260）对第二分层符号解映射信号进行信道解码并输出第二分层解码信号。

63. 发明授权

KR100890440B1 동기화를 위한 수신 장치 및 동기 검출 방법 失效
标题翻译：接收装置同步和方法同步检测
公开(公告)号：KR100890440B1
公开(公告)日：2009-03-30
申请号：KR1020070130940
申请日：2007-12-14
申请人： 한국전자통신연구원
发明人： 김주연 , 김영수 , 배재휘 , 임종수
IPC分类号： H04N5/04 , H04N7/00 , H04L27/18 , H04N7/015
摘要： A receiving apparatus and a synchronization detecting method for detecting synchronization more accurately are provided to detect starting point of sampling and a starting point of a frame by using receiving signal corresponding to a sampling interval and a phase reference signal. A signal detection unit(110) detects the null signal and phase reference signal from the received signal. A synchronization detector(120) detects the first start time point of frame by using the null signal. A plurality of first delay taps corresponding to a plurality of coefficient of correlations determined by the phase reference signal and the second delay tap corresponding to the sampling period ringed with over sample are used. The second start time point of frame is detected from the first start time point.
摘要翻译：提供了一种用于更精确地检测同步的接收装置和同步检测方法，以通过使用与采样间隔和相位参考信号相对应的接收信号来检测采样的起始点和帧的起始点。信号检测单元（110）从接收信号中检测零信号和相位参考信号。同步检测器（120）通过使用空信号检测帧的第一起始时间点。使用对应于由相位参考信号确定的多个相关系数的多个第一延迟抽头和对应于采样周期振铃的采样周期的第二延迟抽头。从第一起始时间点检测帧的第二起始时间点。

64. 发明授权

KR100884381B1 주파수 옵셋 추정 장치 및 방법 有权
标题翻译：频率偏移估计的装置和方法
公开(公告)号：KR100884381B1
公开(公告)日：2009-02-17
申请号：KR1020070042568
申请日：2007-05-02
申请人： 한국전자통신연구원
发明人： 서재현 , 김영수 , 양규태 , 김주연 , 최서미 , 배재휘 , 이광순 , 윤정일 , 김광용 , 김흥묵 , 임종수 , 이수인
IPC分类号： H04L27/26 , H04L27/16
摘要： 본 발명은 이동통신 시스템에서 주파수 옵셋 추정 방법 및 장치에 관한 것이다. 본 발명은 수신 신호에 포함된 기준 심볼의 보호 구간 중 일부에 해당하는 제1 블록의 신호와 상기 수신 신호를 상관하여 제1 상관값을 계산하고, 상기 보호 구간 중 일부에 해당하는 제2 블록의 신호와 상기 수신 신호를 상관하여 제2 상관값을 계산한 후, 상기 제1 상관값을 시간 지연시키고, 상기 지연시킨 제1 상관값의 켤레 복소수와 상기 제2 상관값을 곱하고, 상기 곱한 값의 위상값을 상기 제1 블록과 상기 제2 블록의 시간 간격으로 나누어 주파수 옵셋을 추정한다.
OFDM, 지상파 DMB, 주파수 옵셋 추정, 동기

65. 发明授权

KR100875935B1 ＯＦＤＭ 전송 시스템의 계층 변복조 장치 및 방법 失效
标题翻译： OFDM电视系统的一个重要组成部分
公开(公告)号：KR100875935B1
公开(公告)日：2008-12-26
申请号：KR1020070067185
申请日：2007-07-04
申请人： 한국전자통신연구원 , 부산대학교 산학협력단
发明人： 임형수 , 김영수 , 최서미 , 임종수 , 김지현 , 김완진 , 김형남
IPC分类号： H04J11/00
摘要： A method and an apparatus for hierarchical modulation/demodulation in an OFDM(Orthogonal Frequency Division Multiplexing) system are provided to perform an in-phase demodulation by using a pilot which is transferred to a second layer. A hierarchical modulation apparatus in an OFDM system includes first and second encoders(110,120), a pilot insertion unit(130), and a hierarchical modulation unit(140). The first encoder encodes a first layer signal stream, which is a basic layer signal. The second encoder encodes a second layer signal stream which is an enhancement layer signal. The pilot insertion portion inserts a pilot signal for estimating a channel coefficient to an encoded second layer signal stream. The hierarchical modulation portion modulates the second layer signal stream, to which the pilot signal is inserted, and the encoded first layer signal stream, and combines the encoded signals with each other.
摘要翻译：提供了用于OFDM（正交频分复用）系统中的分层调制/解调的方法和装置，以通过使用传送到第二层的导频来执行同相解调。 OFDM系统中的分层调制装置包括第一和第二编码器（110,120），导频插入单元（130）和分层调制单元（140）。第一编码器对第一层信号流进行编码，该第一层信号流是基本层信号。第二编码器对作为增强层信号的第二层信号流进行编码。导频插入部分将用于估计信道系数的导频信号插入编码的第二层信号流。分层调制部分对导频信号所插入的第二层信号流和编码的第一层信号流进行调制，并将编码信号彼此组合。

66. 发明授权

KR100861318B1 최적의 스펙트럼 감지를 위한 적응필터 및 그 방법과 그를이용한 스펙트럼 감지 장치 및 그 방법 失效
标题翻译：用于有效的光谱感测的自适应滤波方法和滤波器，以及使用该方法的光谱感测装置和方法
公开(公告)号：KR100861318B1
公开(公告)日：2008-10-01
申请号：KR1020070086075
申请日：2007-08-27
申请人： 한국전자통신연구원 , 경희대학교 산학협력단
发明人： 임선민 , 김영수 , 김상원 , 송명선
IPC分类号： H03H21/00
CPC分类号： H03H21/00 , H03H17/02 , H03H17/0227 , H03H21/0012 , H03H21/0025
摘要： An adaptive filter and method for detecting an optimum spectrum, and a spectrum detection apparatus using the same and a method thereof are provided to detect a spectrum by using an adaptive filter for reducing a noise under a time variable environment. An adaptive filter for detecting an optimum spectrum includes a data vector calculation unit(11), a coefficient vector calculation unit(12), an average calculation unit(13), and a convolutional calculation unit(14). The data vector calculation unit calculates a data vector of p-dimension from an input signal based on a degree of a predetermined adaptive filter. The coefficient vector calculation unit calculates a coefficient vector based on the data vector calculated by the data vector calculation unit. The average calculation unit calculates an average of the coefficient vector calculated by the coefficient vector calculation unit. The convolutional calculation unit calculates a convolution of the input signal and the average of the coefficient vector calculated by the average calculation unit.
摘要翻译：提供了一种用于检测最佳频谱的自适应滤波器和方法，以及使用该频谱检测装置的频谱检测装置及其方法，用于通过使用用于在时间可变环境下降低噪声的自适应滤波器来检测频谱。用于检测最佳频谱的自适应滤波器包括数据矢量计算单元（11），系数矢量计算单元（12），平均计算单元（13）和卷积计算单元（14）。数据矢量计算单元基于预定的自适应滤波器的程度从输入信号计算p维的数据矢量。系数向量计算单元基于由数据矢量计算单元计算的数据矢量来计算系数矢量。平均计算单元计算由系数向量计算单元计算的系数向量的平均值。卷积计算单元计算输入信号的卷积和由平均计算单元计算的系数矢量的平均值。

67. 发明公开

KR1020080069495A 파일럿의 삽입 및 파일럿의 특정 배치 패턴을 통하여ＯＦＤＭ 전송 시스템의 전송성능을 높이는 계층 변조 장치및 계층 변조 신호 송수신 장치 및 그 방법 无效
标题翻译：用于OFDM传输系统中分层调制的引导和安排的装置和方法
公开(公告)号：KR1020080069495A
公开(公告)日：2008-07-28
申请号：KR1020070069804
申请日：2007-07-11
申请人： 한국전자통신연구원
发明人： 서재현 , 김주연 , 김흥묵 , 최서미 , 김영수 , 임종수 , 이수인 , 안치득
IPC分类号： H04L27/26 , H04L27/34
CPC分类号： H04L27/3488 , H04H20/28 , H04H20/42 , H04H20/65 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/007 , H04L5/0007 , H04L5/0048 , H04L5/005 , H04L27/183 , H04L27/2604 , H04L27/2613
摘要： A hierarchical modulation apparatus for improving a transmission performance of an OFDM transmission system using the insertion and the specific arrangement pattern of a pilot, and a method thereof are provided to improve a receiving performance by additionally transmitting a pilot signal to an enhancement layer signal. A hierarchical modulation apparatus for improving a transmission performance of an OFDM transmission system using the insertion and the specific arrangement pattern of a pilot includes a first channel coding unit(200), a second channel coding unit(210), a pilot insertion unit(220), and a layer modulation unit(240). The first channel coding unit encodes a base layer signal column. The second channel coding unit encodes an enhancement signal column. The pilot insertion unit inserts a pilot into the enhancement signal column. The pilot has the correlation with the base layer signal column corresponding to the same sub carrier with the enhancement layer signal column which is encoded in the second channel coding unit. The layer modulation unit modulates and combines each of the signal columns outputted from the first channel coding unit and the pilot insertion unit.
摘要翻译：提供了一种使用插入的OFDM传输系统和导频的特定布置模式来提高OFDM传输系统的传输性能的分级调制装置及其方法，用于通过向导频信号附加发送导频信号来提高接收性能。使用插入的OFDM传输系统和导频的特定布置模式来提高OFDM传输系统的传输性能的分层调制装置包括：第一信道编码单元（200），第二信道编码单元（210），导频插入单元（220））和层调制单元（240）。第一信道编码单元对基本层信号列进行编码。第二信道编码单元对增强信号列进行编码。导频插入单元将导频插入增强信号列。导频与与第二信道编码单元中编码的增强层信号列对应的相同子载波的基本层信号列具有相关性。层调制单元对从第一信道编码单元输出的信号列和导频插入单元进行调制和组合。

68. 发明公开

KR1020080052085A 크기 차동 위상 편이 변조 장치 및 그 방법 无效
标题翻译：差分相位移位键控器和方法
公开(公告)号：KR1020080052085A
公开(公告)日：2008-06-11
申请号：KR1020060124121
申请日：2006-12-07
申请人： 한국전자통신연구원 , 부산대학교 산학협력단
发明人： 임형수 , 김영수 , 최서미 , 임종수 , 권대근 , 김형남
IPC分类号： H04L27/18 , H04L12/20
CPC分类号： H04L27/389 , H04L5/0007 , H04L25/0224 , H04L27/02 , H04L27/2071 , H04L27/2075 , H04L27/3483 , H04L27/361
摘要： An apparatus and a method for applying amplitude-differential phase shift keying are provided to maintain compatibility of main transmission data to a pre-differential phase shift keying and to improve a transmitting speed by modulating the main transmission data with a differential phase shift keying manner and modulating additional transmission data with the other differential phase shift keying manner. An apparatus and a method for applying amplitude-differential phase shift keying includes a first modulating unit modulating a first data sequence with a differential phase shift keying manner. A second modulating unit modulates a second data sequence with an amplitude shift and inserts a pilot signal to the amplitude shift modulated signal. A multiplier outputs after multiplying output data of first and second modulating units. The pilot signal is periodically or non-periodically inserted at a position of a sub-carrier of the amplitude shift modulated signal. A first demodulating unit(31) receives an amplitude-differential phase shift keying modulated signal and demodulates the received signal with the differential phase shift keying. A second demodulating unit(324) extracts the pilot signal from the received signal.
摘要翻译：提供了一种应用幅度相移键控的装置和方法，以保持主传输数据与预差分相移键控的兼容性，并通过以差分相移键控方式调制主传输数据来提高传输速度，用其他差分相移键控方式调制附加传输数据。一种用于施加幅度相移键控的装置和方法包括以差分相移键控方式调制第一数据序列的第一调制单元。第二调制单元以幅度偏移来调制第二数据序列，并将导频信号插入到幅度调制信号中。乘法器在乘以第一和第二调制单元的输出数据之后输出。导频信号周期地或非周期地插入在幅度调制信号的子载波的位置。第一解调单元（31）接收幅度 - 差分相移键控调制信号并用差分相移键控对接收信号进行解调。第二解调单元（324）从接收到的信号中提取导频信号。

69. 发明公开

KR1020080050236A ＯＦＤＭ 전송 시스템의 계층 변복조 장치 및 방법 失效
标题翻译：正交频分复用系统中分层调制/解调的装置和方法
公开(公告)号：KR1020080050236A
公开(公告)日：2008-06-05
申请号：KR1020070067185
申请日：2007-07-04
申请人： 한국전자통신연구원 , 부산대학교 산학협력단
发明人： 임형수 , 김영수 , 최서미 , 임종수 , 김지현 , 김완진 , 김형남
IPC分类号： H04J11/00
CPC分类号： H04L27/261 , H03M13/1102 , H03M13/235 , H04L1/004 , H04L5/0048 , H04L27/2626
摘要： A method and an apparatus for hierarchical modulation/demodulation in an OFDM(Orthogonal Frequency Division Multiplexing) system are provided to perform an in-phase demodulation by using a pilot which is transferred to a second layer. A hierarchical modulation apparatus in an OFDM system includes first and second encoders(110,120), a pilot insertion unit(130), and a hierarchical modulation unit(140). The first encoder encodes a first layer signal stream, which is a basic layer signal. The second encoder encodes a second layer signal stream which is an enhancement layer signal. The pilot insertion portion inserts a pilot signal for estimating a channel coefficient to an encoded second layer signal stream. The hierarchical modulation portion modulates the second layer signal stream, to which the pilot signal is inserted, and the encoded first layer signal stream, and combines the encoded signals with each other.
摘要翻译：提供了一种用于OFDM（正交频分复用）系统中的分级调制/解调的方法和装置，以通过使用传送到第二层的导频来执行同相解调。 OFDM系统中的分级调制装置包括第一和第二编码器（110,120），导频插入单元（130）和分层调制单元（140）。第一编码器编码作为基本层信号的第一层信号流。第二编码器对作为增强层信号的第二层信号流进行编码。导频插入部分将用于估计信道系数的导频信号插入到编码的第二层信号流。分级调制部分调制导频信号插入到其上的第二层信号流和编码的第一层信号流，并将编码信号相互组合。

70. 发明公开

KR1020070060867A 모바일 ＲＦＩＤ 환경에서의 성인인증 시스템 및 그 방법 失效
标题翻译： MRFID环境中成人认证系统及其方法
公开(公告)号：KR1020070060867A
公开(公告)日：2007-06-13
申请号：KR1020050120994
申请日：2005-12-09
申请人： 한국전자통신연구원
发明人： 김영수 , 박남제 , 남택용 , 장종수
IPC分类号： H04L9/32 , G06K17/00
CPC分类号： H04N7/163 , H04N21/25875 , H04N21/4415 , H04N21/4532 , H04N21/84
摘要： An adult certificating system in a mobile RFID(Radio Frequency Identification System) environment and a method thereof are provided to obtain the adult contents in other terminal, and to perform adult certification without exposing a resident registration number. An adult certificating system in a mobile RFID environment includes a rate information reading unit(111), an adult certification rating unit(1341), and a service rate certificate validity determining unit(1343). The rate information reading unit is placed at a terminal(11) of a user, and reads adult certification rate information(101) recorded in a mobile RFID tag(10) of adult contents. The adult certification rating unit determines an ultimate rate of the read rate information. The service rate certificate validity determining unit determines whether the adult contents of the ultimate rate is provided to the user of the terminal based on the ultimate rate and an age of the user of the terminal.
摘要翻译：提供移动RFID（射频识别系统）环境中的成人认证系统及其方法，以获取其他终端中的成人内容，并且在不暴露居民登记号的情况下进行成人认证。移动RFID环境中的成人认证系统包括速率信息读取单元（111），成人认证评估单元（1341）和服务率证书有效性确定单元（1343）。速率信息读取单元被放置在用户的终端（11）处，并且读取记录在成人内容的移动RFID标签（10）中的成人认证率信息（101）。成人认证评级单元确定读取速率信息的最终速率。业务率证书有效性确定单元基于终端用户的终端速率和年龄确定是否向终端的用户提供终端速率的成人内容。

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