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公开(公告)号：KR1020090122096A
公开(公告)日：2009-11-26
申请号：KR1020080067448
申请日：2008-07-11
Applicant: 한국전자통신연구원
CPC classification number: H04L23/02 , H04H20/95 , H04L5/0016 , H04L5/0048 , H04L25/0226
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：KR1020090062906A
公开(公告)日：2009-06-17
申请号：KR1020070130390
申请日：2007-12-13
Applicant: 한국전자통신연구원
CPC classification number: H04L1/02 , H04B7/0857 , H04L27/2649
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：KR100890440B1
公开(公告)日：2009-03-30
申请号：KR1020070130940
申请日：2007-12-14
Applicant: 한국전자통신연구원
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：KR100884381B1
公开(公告)日：2009-02-17
申请号：KR1020070042568
申请日：2007-05-02
Applicant: 한국전자통신연구원
Abstract: 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-
公开(公告)号：KR1020040107843A
公开(公告)日：2004-12-23
申请号：KR1020030038482
申请日：2003-06-14
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04B7/088 , H04N5/211 , H04N5/4401 , H04N5/455
Abstract: PURPOSE: An apparatus and a method for selecting an optimum beam in a digital TV(Television) receiver are provided to select an optimum beam having an optimum channel characteristic among a plurality of beams formed by a selection type beam-forming unit, thereby enhancing a reception performance of the digital TV. CONSTITUTION: A correlation unit(220) obtains correlation values between field sink signals of respective beams and a predetermined field sink signal, wherein respective beams are selected of a plurality of beams outputted from a selection type beam-forming unit. A channel profile extraction unit(230) extracts multi-paths channel profiles of respective beams using the correlation values, respectively. An effective signal path search unit(240) obtains the number of effective signal paths based on the channel profiles, wherein each of the effective signal paths has path size over a predetermined critical value. A beam selection unit(250) selects an optimum beam among the plurality of beams outputted from the selection type beam-forming unit, wherein the optimum beam has a channel profile having the fewest effective signal paths.
Abstract translation: 目的：提供一种用于在数字TV（电视）接收机中选择最佳波束的装置和方法，以在由选择型波束形成单元形成的多个波束中选择具有最佳信道特性的最佳波束，从而增强 数字电视的接收性能。 构成：相关单元（220）获得各个波束的场信宿信号与预定的场分集信号之间的相关值，其中从选择类型波束形成单元输出的多个波束选择各个波束。 信道简档提取单元（230）分别使用相关值来提取各个波束的多路径信道分布。 有效信号路径搜索单元（240）基于信道简档获得有效信号路径的数量，其中每个有效信号路径具有超过预定临界值的路径尺寸。 波束选择单元（250）从选择类型波束形成单元输出的多个波束中选择最佳波束，其中最佳波束具有具有最少有效信号路径的信道分布。
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Patent Agency Ranking
公开(公告)号：KR101754100B1
公开(公告)日：2017-07-06
申请号：KR1020110010865
申请日：2011-02-08
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0456 , H04L5/0023 , H04L25/03891 , H04L27/0008 , H04L27/206 , H04L27/367
Abstract: 디지털방송시스템에서다중안테나(Multiple Input Multiple Output; MIMO) 전송방법이제공된다. 상기방법은제1 정보비트들을변조하여복수의제1 변조심볼(symbol)을생성하는단계, 제2 정보비트들을변조하여복수의제2 변조심볼(symbol)을생성하는단계, 상기복수의제1 변조심볼과상기복수의제2 변조심볼을프리코딩하여, 복수의제1 프리코딩된심볼과복수의제2 프리코딩된심볼을생성하는단계및 상기복수의제1 프리코딩된심볼각각과상기복수의제2 프리코딩된심볼각각을제1 안테나와제2 안테나를통해서로교차하여(stagger) 할당하고전송하는단계를포함하는것을특징으로한다.
Abstract translation: 数字广播系统中提供了多输入多输出（MIMO）传输方法。 该方法包括调制第一信息比特以生成多个第一调制符号，调制第二信息比特以生成多个第二调制符号， 通过对调制符号和多个第二调制符号进行预编码来生成多个第一预编码符号和多个第二预编码符号，以生成多个第一预编码符号和多个第二预编码符号， 并且分别通过第一天线和第二天线分配并发送交错的Ag2预编码符号。
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公开(公告)号：KR1020140068431A
公开(公告)日：2014-06-09
申请号：KR1020120135912
申请日：2012-11-28
Applicant: 한국전자통신연구원
IPC: H04N5/262
CPC classification number: G06K9/00771 , G01B11/022 , G01S17/023 , G06F3/013 , G06F3/017 , G06F3/14 , G06F3/1454 , G06K9/00335 , G08B13/19621 , H04N7/144 , H04N7/147 , H04N7/15 , H04N7/181 , H04N21/21805 , H04N21/2187 , H04N21/2743 , H04N21/4316 , H04N2007/145
Abstract: Disclosed is a device for processing an image based on a smart glass. The device for processing an image based on a smart glass comprises an extraction unit which extracts a first object to be observed by a user from a first image received from a smart glass and generates a second image; an information collection unit which collects information related to the first object; and an image generation unit which reconstructs at least one of the second image and the information related to the first image based on the setting of the user.
Abstract translation: 公开了一种基于智能玻璃来处理图像的装置。 用于基于智能玻璃处理图像的装置包括提取单元，其从由智能玻璃接收的第一图像中提取用户观察到的第一对象并生成第二图像; 信息收集单元，其收集与所述第一对象相关的信息; 以及图像生成单元，其基于用户的设置重建第二图像和与第一图像相关的信息中的至少一个。
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公开(公告)号：KR101333822B1
公开(公告)日：2013-11-29
申请号：KR1020100065954
申请日：2010-07-08
Applicant: 한국전자통신연구원
IPC: H04N7/015
Abstract: 계층 변조 기법이 적용된 방송 시스템에서 간섭을 제거하는 장치는 서비스 제공 신호와 서비스 제공 신호에 새로 추가되는 신호를 포함하는 계층 변조 신호를 복조한다. 다음, 간섭 제거 장치는 서비스 제공 신호를 복조하여 서비스 제공 데이터를 생성하고, 서비스 제공 데이터를 특정 신호로 변조하여, 복조한 계층 변조 신호에서 특정 신호에 대응하는 간섭 신호를 제거한다.
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公开(公告)号：KR1020120064750A
公开(公告)日：2012-06-20
申请号：KR1020100125918
申请日：2010-12-10
Applicant: 한국전자통신연구원
IPC: H04N21/234
CPC classification number: H04H60/07 , H04H2201/20
Abstract: PURPOSE: Data processing apparatus and method for a digital broadcasting system are provided to enable users to change partial information on a fast information channel instead of re-multiplexing the ETI(ensemble transmission interface). CONSTITUTION: A data processing apparatus for a digital broadcasting system comprises the following: a frame separating unit(520) decoding a first ETI(ensemble transmission interface) frame, and separating FIC(first fast information channel) data and non-FIC data forming the first ETI frame; an FIC changing unit(530) changing the first FIC data into new second FIC data; and a frame formation unit(540) forming a second ETI frame based on the second FIC data and the non-FIC data.
Abstract translation: 目的：提供数字广播系统的数据处理装置和方法，以使用户能够在快速信息信道上改变部分信息，而不是重新复用ETI（集合传输接口）。 构成：用于数字广播系统的数据处理装置包括：对第一ETI（集成传输接口）帧进行解码的帧分离单元（520），以及分离FIC（第一快速信息信道）数据和形成 第一个ETI框架; FIC改变单元（530）将第一FIC数据改变为新的第二FIC数据; 以及基于第二FIC数据和非FIC数据形成第二ETI帧的帧形成单元（540）。
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公开(公告)号：KR1020120035875A
公开(公告)日：2012-04-16
申请号：KR1020110100768
申请日：2011-10-04
Applicant: 한국전자통신연구원 , 전남대학교산학협력단 , 부산대학교 산학협력단
CPC classification number: H04B7/0697 , H04B7/0426 , H04B7/0456
Abstract: PURPOSE: A space multiplexing transmission method and a device thereof are provided to equally control the reception range of a signal transmitted to each antenna. CONSTITUTION: R signals passed through a serial-parallel converter(410) are alternatively inputted to amplifiers(420,430) in every input time The signals are transmitted through antennas(440,450). R signals are inputted as an input signal to an amplifier connected to a first antenna, wherein the r signals are precoded with a transmission signal x to which a transmission power weight is alternatively applied. R signals are inputted as an input signal to an amplifier connected to a second antenna, wherein the r signals are precoded with a transmission signal x to which a transmission power weight is alternatively applied.
Abstract translation: 目的：提供一种空间复用传输方法及其装置，以同样地控制发射到每个天线的信号的接收范围。 构成：在每个输入时间，通过串行 - 并行转换器（410）的R信号交替地输入到放大器（420,430）。信号通过天线（440,450）传输。 将R信号作为输入信号输入到连接到第一天线的放大器，其中r信号用交替施加发射功率权重的发射信号x进行预编码。 R信号作为输入信号输入到连接到第二天线的放大器，其中r信号用传输信号x进行预编码，传输信号x交替地施加发射功率权重。
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