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公开(公告)号：KR1020110037821A
公开(公告)日：2011-04-13
申请号：KR1020100049581
申请日：2010-05-27
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An apparatus of repeating for transmitting a terrestrial DTV broadcasting signal and additional data and a method thereof are provided to relay additional data inserted into a DTV broadcasting signal. CONSTITUTION: An additional data extracting unit(508) extracts additional data from an output signal of an equalization unit, and outputs the extracted data. An adder(511) combines the DTV signal outputted from the equalization unit with the output of the additional data processing unit. A transmission processing unit modulates the added output, and converts the band of the modulated signal into an RF(Radio Frequency) band. The transmission processing unit amplifies the transmission poser, and amplifies the transmission power. The transmission processing unit transmits the amplified signal through a transmission antenna.
Abstract translation: 目的：提供一种用于发送地面DTV广播信号和附加数据的重复装置及其方法，用于中继插入到DTV广播信号中的附加数据。 构成：附加数据提取单元（508）从均衡单元的输出信号中提取附加数据，并输出提取的数据。 加法器（511）将从均衡单元输出的DTV信号与附加数据处理单元的输出相结合。 传输处理单元调制附加的输出，并将调制信号的频带转换成RF（射频）频带。 发送处理单元放大发送端，并放大发送功率。 发送处理单元通过发送天线发送放大的信号。
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公开(公告)号：KR1020100093393A
公开(公告)日：2010-08-25
申请号：KR1020090012548
申请日：2009-02-16
Applicant: 한국전자통신연구원
CPC classification number: H04B7/15571 , H04B7/15585 , H04B15/02
Abstract: PURPOSE: An on channel relay device and a method thereof are provided to have more superior properties of output signals than properties of input signals. CONSTITUTION: An RF(Radio Frequency) transmission characteristic modeling and reflecting unit(909) models a RF transmission characteristic of an on channel relay device. The RF transmission characteristic modeling and reflecting unit reflects the modeled RF transmission characteristic to a signal in which a relay signal is branched in an output terminal. A feedback signal replica generating unit(910) generates a replica of a feedback signal based on the signal to which the RF transmission characteristic is reflected and an output signal from a subtractor. The feedback signal replica generating unit feeds back the generated replica to the subtractor.
Abstract translation: 目的：提供一个通道继电器及其方法，具有比输入信号特性更优越的输出信号特性。 构成：射频（射频）传输特性建模和反射单元（909）对通道中继设备的射频传输特性进行建模。 RF传输特性建模和反射单元将建模的RF传输特性反映到在输出端子中继电器信号被分支的信号。 反馈信号副本生成单元（910）基于反射RF传输特性的信号和来自减法器的输出信号产生反馈信号的副本。 反馈信号副本生成单元将生成的副本反馈到减法器。
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公开(公告)号：KR100967399B1
公开(公告)日：2010-07-02
申请号：KR1020070082658
申请日：2007-08-17
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04L25/03343 , H04H20/72 , H04L2025/03382
Abstract: 본 발명은 지상파 디지털 방송 시스템에서 VSB(Vestigial Side Band) 송신기 및 중계기에서 채널 필터 출력에서 커플링한 신호를 VSB 복조기로 전달하는 역방향 경로에서 발생하는 전송 대역 내 크기 및 위상 왜곡을 톤 신호를 이용해 추정하여 역방향 경로를 보상해 줌으로써, 전치 등화기의 성능을 개선하기 위한 톤 신호 발생을 이용한 역방향 경로 보상 장치 및 그 방법에 관한 것으로, 등화기의 필터계수를 적응적으로 생성하기 위해 역방향 경로를 갖는 디지털 방송 시스템의 송신단에서, 상기 등화기의 성능을 향상시키기 위한 장치에 있어서, 기준 무선 주파수 신호를 발생하는 기준 신호 발생수단; 상기 기준 신호 발생수단에 의해 발생된 기준 무선 주파수 신호를 근거로 상기 역방향 경로에 대한 전송 대역 특성 정보를 추정하는 역방향 경로 추정수단; 및 상기 역방향 경로 추정수단에 의해 추정된 역방향 경로에 대한 전송 대역 특성 정보를 바탕으로 상기 역방향 경로를 통해 전달된 복조 신호를 보상하여, 상기 등화기의 필터 계수를 생성하는 필터 계수 생성기로 전달하는 역방향 경로 보상수단을 포함한다.
지상파, 디지털, 방송, 송신, 전치 등화기, 채널 필터, 역방향, 경로, 보상-
公开(公告)号：KR100930718B1
公开(公告)日：2009-12-09
申请号：KR1020070108349
申请日：2007-10-26
Applicant: 한국전자통신연구원
Abstract: In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services.
Abstract translation: 在数字广播信号传输系统中，传输帧包括帧体和帧头，并且帧体在频域中被分成多个子带，并在时域中被分成多个符号。 帧头被提供在传输帧的前面部分中，并且在时域中与信号一起传输。 帧体包括多个服务，并且这些服务分别接收至少一个子带和至少一个符号。 帧头包括关于多个服务的信息，并且关于多个服务的信息包括关于分配了服务的子带和符号的信息，关于服务的信道编码电平的信息以及关于数字调制电平的信息 的服务。
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公开(公告)号：KR1020090096399A
公开(公告)日：2009-09-10
申请号：KR1020090078805
申请日：2009-08-25
Applicant: 한국전자통신연구원
CPC classification number: H04H20/42 , H04H20/72 , H04H40/18 , H04H60/07 , H04L1/0003 , H04L1/0017 , H04L1/0041 , H04L1/0065 , H04L1/0071 , H04L1/04 , H04L2001/0093 , H04L2001/0098 , H04N21/2343 , H04N21/234327 , H04L1/0023
Abstract: A transmitting method, a transmitting apparatus, a receiving method and a receiving apparatus of a digital broadcasting signal are provided to divide a stream into a plurality of layers according to a characteristic of the stream, process each layer independently and dynamically allocate a frequency based on the processed signal. A single stream is divided by a predetermined stream unit. Importance of the divided stream unit is grasped. According to the grasped importance, the divided stream unit is allocated to a plurality of layers(S104). Encoding and mapping about a separate layer are performed(S105,S106). Resources about the separate layer are dynamically allocated based on a symbol number about the separate layer(S107,S108).
Abstract translation: 提供一种数字广播信号的发送方法，发送装置，接收方法和接收装置，以根据流的特性将流划分成多个层，独立地处理每一层，并基于 处理后的信号。 单个流被预定的流单元划分。 掌握分流单元的重要性。 根据所掌握的重要性，将划分的流单元分配给多个层（S104）。 执行关于单独层的编码和映射（S105，S106）。 关于单独层的资源基于关于单独层的符号数量动态地分配（S107，S108）。
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Patent Agency Ranking
公开(公告)号：KR100909279B1
公开(公告)日：2009-07-27
申请号：KR1020070078919
申请日：2007-08-07
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2604 , H04L25/0224 , H04L27/2649
Abstract: 계층 복조 장치는 미리 알고 있는 심볼을 바탕으로 기준 심볼을 채널 추정하여 기준 심볼의 채널 추정 값을 생성하고, 기준 심볼의 채널 추정 값을 바탕으로 복수의 정보 심볼을 채널 추정하여 복수의 정보 심볼의 채널 추정 값을 생성하며, 복수의 정보 심볼의 채널 추정 값을 바탕으로 복수의 서비스 심볼을 채널 추정하여 복수의 서비스 심볼의 채널 추정 값을 생성한다. 그리고 기준 심볼의 채널 추정 값, 복수의 정보 심볼의 채널 추정 값, 및 복수의 서비스 심볼의 채널 추정 값을 바탕으로 신호를 채널 등화한 후 채널 등화된 신호를 계층 분리하여 제1 계층 변조 신호와 제2 계층 변조 신호를 생성한다. 이를 통해 기존의 시스템과 호환성을 유지하면서 기본 계층에는 영향을 주지 않고 추가 계층의 수신 성능을 향상시킬 수 있다.
OFDM, 파일럿, 복조, 채널 추정Abstract translation: 分层解调设备信道基于给定码元来估计参考码元以生成参考码元的信道估计，信道基于参考码元的信道估计估计多个信息码元以生成多个信息码元的信道估计 ，信道基于多个信息符号的信道估计来估计多个服务符号以生成多个服务符号的信道估计，基于参考符号的信道估计对信号进行信道均衡，多个信道估计 信息符号和多个服务符号的信道估计，并且分层地分离信道均衡信号以产生第一分层调制信号和第二分层调制信号; 调制信号。 因此，在保持与现有系统的兼容性的同时，可以在不影响高优先级信号的情况下提高低优先级信号的接收性能。
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公开(公告)号：KR1020090025575A
公开(公告)日：2009-03-11
申请号：KR1020070090534
申请日：2007-09-06
Applicant: 한국전자통신연구원
Abstract: An identification signal analyzing apparatus for compensating separation and attenuation of a channel profile and a method thereof are provided to more accurately analyze an identification signal. An identification signal generating unit(404) produces the same identification signal as an identification signal inserted by a transmission side apparatus. A partial correlation unit(405) calculates a correlation value between a receiving signal to/in which a promised identification signal is inserted/received by a transmission side apparatus and the identification signal generated by the identification signal generating unit through a partial correlation method. A correlation value compensation unit(406) compensates for separation and attenuation of the correlation value calculated with the partial correlation unit. A channel profile extracting unit(407) extracts a channel profile from the correlation value compensated by the correlation value compensation unit.
Abstract translation: 提供用于补偿信道简档的分离和衰减的识别信号分析装置及其方法，以更准确地分析识别信号。 识别信号生成单元（404）产生与由发送侧装置插入的识别信号相同的识别信号。 部分相关单元（405）通过部分相关方法计算由发送方装置插入/接收的承诺识别信号的接收信号与由识别信号生成单元生成的识别信号之间的相关值。 相关值补偿单元（406）补偿由部分相关单元计算的相关值的分离和衰减。 信道简档提取单元（407）从由相关值补偿单元补偿的相关值中提取信道分布。
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公开(公告)号：KR1020090009410A
公开(公告)日：2009-01-23
申请号：KR1020070072636
申请日：2007-07-20
Applicant: 한국전자통신연구원
CPC classification number: H04B7/15585 , H04B1/525
Abstract: An identical channel relay apparatus and a method thereof for relaying output signal the same as input signal to the identical channel are provided to correct the channel distortion of the received signal by estimating the reverse of the receive channel from the signal removing feedback. A subtracting unit(803) subtracts replica of feedback signal from a converted signal by an RF receiver(802). A replica generating unit(804) produces the replica of feedback based on the signal which is downward transformed into the prescribed band by a down-converter(808) and the signal outputted from the subtracting unit. A reverse channel estimating unit(805) generates filter tap coefficient by estimating the reverse of the received channel. A first adaptive filtering unit(806) performs filtering by using the filter tap coefficient generated by the reverse channel estimating unit.
Abstract translation: 提供了相同的信道中继装置及其将与输入信号相同的输出信号中继到相同信道的方法，以通过从信号去除反馈估计接收信道的反向来校正接收信号的信道失真。 减法单元（803）通过RF接收器（802）从转换的信号中减去反馈信号的副本。 复制产生单元（804）基于通过下变频器（808）向下变换为规定频带的信号和从减法单元输出的信号产生反馈副本。 反向信道估计单元（805）通过估计接收信道的反向来产生滤波器抽头系数。 第一自适应滤波单元（806）通过使用由反向信道估计单元生成的滤波器抽头系数来执行滤波。
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公开(公告)号：KR1020080106061A
公开(公告)日：2008-12-04
申请号：KR1020080050263
申请日：2008-05-29
Applicant: 한국전자통신연구원
IPC: H04N21/236 , H04N21/434
CPC classification number: H04N21/23614 , H04N21/234309 , H04N21/23439 , H04N21/2365 , H04N21/2381 , H04N21/2383 , H04N21/242 , H04N21/4122 , H04N21/4126 , H04N21/41407 , H04N21/4347 , H04N21/4382 , H04N21/64315
Abstract: A transmission method, a transmitting device, a receiving method, a receiving device and a transmission frame structure of the digital broadcasting signal are provided to support various transmission modes in digital satellite broadcasting(DTV or DMB). A stream offering unit(100) converts a plurality of program service configuration elements into stream. A multiplexer(200) modulates the stream into the mode determined according to the transmission mode. A transmission frame generating unit(300) generates a transfer frame based on multiplexed information and stream information allocated to each sub channel according to the transmission mode. A frame header includes the transfer frame. A frame body includes data information about the service.
Abstract translation: 提供数字广播信号的发送方法，发送装置，接收方法，接收装置和发送帧结构，以支持数字卫星广播（DTV或DMB）中的各种传输模式。 流提供单元（100）将多个节目服务配置元素转换成流。 多路复用器（200）将流调制成根据传输模式确定的模式。 传输帧生成单元（300）根据传输模式，根据复用的信息和分配给每个子信道的流信息生成传送帧。 帧头包括传送帧。 帧体包括有关该服务的数据信息。
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公开(公告)号：KR1020080099553A
公开(公告)日：2008-11-13
申请号：KR1020070045235
申请日：2007-05-09
Applicant: 한국전자통신연구원
CPC classification number: H04B7/15585
Abstract: Co-channel relaying equipment and a method thereof are provided to increase the use efficiency of restricted frequency resources. Co-channel relaying equipment comprises the followings: a receiving means(802) receiving radio frequency signals; a subtraction means(803) subtracting the replica of a feedback signal from the signal received by the receiving means; a replica generation means(804) which produces a replica based on the signal subtracted by the subtraction means and feeds the replica back to the subtraction means; a reverse channel estimation means(805) which generates a filter tap coefficient by estimating the inverse of a reception channel based on the subtracted signal; the first adaptive filtering means(806) which compensates for the channel distortion of the subtracted signal by using the filter tap coefficient generated by the reverse channel estimation means; and a transmitting means(807) which converts the signal in which the channel distortion is compensated into a radio frequency signal, and then wirelessly transmit the converted signal.
Abstract translation: 提供同频中继设备及其方法，以提高受限频率资源的使用效率。 同频中继设备包括：接收射频信号的接收装置（802）; 减法装置，从接收装置接收的信号中减去反馈信号的副本; 复制产生装置（804），其基于由减法装置减去的信号产生副本，并将副本送回减法装置; 反向信道估计装置，用于通过基于所述减去的信号估计接收信道的反向产生滤波器抽头系数; 第一自适应滤波装置（806），其通过使用由反向信道估计装置产生的滤波器抽头系数来补偿减去的信号的信道失真; 以及发送装置（807），其将信道失真补偿的信号转换成射频信号，然后无线地发送转换后的信号。
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