-
公开(公告)号：KR1020150127480A
公开(公告)日：2015-11-17
申请号：KR1020140054392
申请日：2014-05-07
Applicant: 한국전자통신연구원
CPC classification number: H04L1/00 , H04L1/0054 , H04L25/03 , H04L25/03057 , H04L25/03299 , H04L25/03343 , H04L25/03993
Abstract: 본발명에따른수신기는, 샘플링된신호중에서미리설정된크기만큼신호를선택하고상기선택된신호크기에대한필터계수를추출하여해당필터계수에대한 QR 분해를수행하는부분필터생성부; 검출될신호의후보심볼조합의길이및 수를결정하고, 상기결정된후보심볼조합의길이및 수를근거로후보 ML 심볼조합을생성하는부분 ML 설정부; 상기생성된후보 ML 심볼조합을근거로상기샘플링된신호의미리설정된부분중에서나머지심볼을검출하는신호검출부; 및상기검출된후보심볼중에서상기샘플링된신호에가장근접한후보심볼을최종검출된신호로선정하는최종신호선택부;를포함한다.
Abstract translation: 根据本发明，接收机包括：部分滤波器生成单元，用于在采样信号中选择多达预定大小的信号，并且针对所选信号的大小提取滤波器系数以对相应的信号进行QR分解 滤波系数; 部分ML设置单元，用于确定要检测的信号的候选符号组合的长度和数量，并且基于所确定的候选符号组合的长度和数量生成候选ML符号组合; 信号检测单元，用于基于所生成的候选ML符号组合来从所述采样信号的预设部分检测剩余符号; 以及最终信号选择单元，用于在所检测的候选符号中选择与采样信号最接近的候选符号作为最终检测信号。
-
公开(公告)号：KR1020150093104A
公开(公告)日：2015-08-17
申请号：KR1020150010722
申请日：2015-01-22
Applicant: 한국전자통신연구원
IPC: H04N21/2362 , H04N21/2368 , H04N21/236 , H04N21/262 , H04N21/235
CPC classification number: H04N21/2362 , H04N21/235 , H04N21/23617 , H04N21/2368 , H04N21/26266
Abstract: DVB(Digital Video Broadcasting) 기반으로 방송 서비스를 제공하는 방송 서비스 제공 장치는 방송 스트림을 부호화하여 기본스트림을 생성하고, 가상 채널 번호 서술자를 생성하여 상기 가상채널 번호 서술자에 가상 채널 번호를 할당한 다음, 가상 채널 번호 서술자를 포함하는 서비스 정보를 생성하며, 기본스트림과 서비스 정보를 다중화하여 전송한다.
Abstract translation: 本发明涉及一种基于数字视频广播（DVB）提供广播业务的装置和方法。 根据本发明，用于提供基于DVB的广播服务的装置：对广播电视进行编码以产生基本流; 生成虚拟信道号描述符，向虚拟信道号描述符分配虚拟信道号，并生成包括虚拟信道号描述符的服务信息; 并且将基本流和服务信息进行复用以进行发送。
-
公开(公告)号：KR101334370B1
公开(公告)日：2013-11-29
申请号：KR1020090084220
申请日：2009-09-07
Applicant: 한국전자통신연구원
IPC: H04N7/12 , H04N21/236 , H04N21/238 , H04L29/06
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: 본 발명은, 디지털 방송을 위한 전송 시스템에서 전송 프레임의 앞부분에 프레임 헤더 정보를 추가하여 시간적으로 서로 다른 전송 프레임에 서로 다른 전송모드, 변조 레벨, 계층 변조, 에러 정정 부호 등을 정할 수 있는 디지털 방송 신호의 전송 방법, 전송 장치, 수신 방법, 수신 장치 및 이의 전송 프레임 구조에 관한 것이다.
전송 프레임 구조는, 전송 프레임의 다중화 정보를 포함하는 프레임 헤더; 및 상기 전송 프레임이 제공하는 서비스에 대한 데이터 정보를 포함하는 프레임 바디를 포함한다. 또한, 상기 프레임 헤더는, 상기 전송 프레임의 시작 위치를 추출하기 위한 동기 신호 정보를 포함하는 프레임 동기신호부; 및 상기 전송 프레임이 포함하고 있는 데이터의 다중화 정보―상기 전송 프레임이 포함하고 있는 데이터의 전송 모드, 변조 레벨, 계층 변조, 에러 정정 부호의 정보―를 포함하는 프레임 정보부를 포함할 수 있다.
디지털 방송, 전송 프레임, 전송 모드-
公开(公告)号：KR1020130096688A
公开(公告)日：2013-08-30
申请号：KR1020130093840
申请日：2013-08-07
Applicant: 한국전자통신연구원
IPC: H04N19/00 , H04N21/234 , H04N7/015
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
Abstract: PURPOSE: A transmission method, transmission apparatus, reception method, and reception apparatus for a digital broadcasting signal are provided to divide a stream into multiple layers according to the properties of the stream and independently process the layers. CONSTITUTION: A transmission method for a digital broadcasting signal comprises steps of: dividing a unit stream into multiple layers according to the properties of the stream (S104); encoding and mapping the divided layers (S105, S106); and dynamically assigning the resources of the layers based on the number of symbols of the layers (S107, S108). [Reference numerals] (AA) Start; (BB) End; (S101) Input multiple transmission streams; (S102) Multiplex in the type of a unit stream; (S103) Encode for error correction; (S104) Divide the unit stream into multiple layers; (S105) Encode the divided layers; (S106) Map the divided layers using a predetermined method; (S107) Determine the bandwidth of each layer based on the number of symbol of each layer; (S108) Assign frequency domain; (S109) Perform frequency interleaving to each layer; (S110) Perform inverse fast Fourier transform
Abstract translation: 目的：提供一种用于数字广播信号的传输方法，传输装置，接收方法和接收装置，以根据流的属性将流划分成多个层，并独立地处理这些层。 构成：数字广播信号的传输方法包括以下步骤：根据流的属性将单元流划分成多个层（S104）; 编码和映射划分的层（S105，S106）; 并且基于层的符号的数量动态分配层的资源（S107，S108）。 （附图标记）（AA）开始; （BB）结束; （S101）输入多个传输流; （S102）单位流类型中的多路复用; （S103）编码纠错; （S104）将单位流划分为多层; （S105）对划分的层编码; （S106）使用预定方法映射分割图层; （S107）根据每一层的符号数确定每层的带宽; （S108）分配频域; （S109）对各层进行频率交织; （S110）进行快速傅立叶逆变换
-
公开(公告)号：KR101282538B1
公开(公告)日：2013-07-04
申请号：KR1020090127334
申请日：2009-12-18
Applicant: 한국전자통신연구원
Inventor： 임형수
CPC classification number: H04B7/15542 , H04B7/15535
Abstract: 하향신호를 이용하여 채널이득을 추정하는 채널이득 추정부, 및 상기 추정된 채널 이득을 고려하여 레인징 상향신호를 왜곡하는 신호 왜곡부를 포함하는 레인징 상향신호 사전 왜곡 시스템 및 방법이 개시된다.
채널이득, 추정, 레인징 상향신호, 사전 왜곡(pre-distortion)-
Patent Agency Ranking
公开(公告)号：KR1020130055264A
公开(公告)日：2013-05-28
申请号：KR1020110120921
申请日：2011-11-18
Applicant: 한국전자통신연구원
IPC: H04N7/015
CPC classification number: H04H20/65 , H04B10/556 , H04H40/27 , H04L27/04 , H04N21/4348 , H04N21/4355 , H04N21/4382
Abstract: PURPOSE: A device for transmitting and receiving additional data by using training signals and a method thereof are provided to transmit the additional data by using the training signals while maintaining inverse compatibility with ATSC(Advanced Television System Committee). CONSTITUTION: An additional data transmitting/receiving device includes a training signal assignment unit(310), an additional data insertion unit(320), and a signal transmission unit(330). The training signal assignment unit assigns training signals to broadcast signals. The additional data insertion unit inserts additional data into the training signals. The signal transmission unit transmits the training signals which the additional data is inserted. [Reference numerals] (310) Signal assignment unit; (320) Additional data insertion unit; (330) Signal transmission unit
Abstract translation: 目的：提供一种通过使用训练信号发送和接收附加数据的装置及其方法，用于通过使用训练信号来发送附加数据，同时维持与ATSC（高级电视系统委员会）的反相容性。 构成：附加数据发送/接收装置包括训练信号分配单元（310），附加数据插入单元（320）和信号发送单元（330）。 训练信号分配单元将训练信号分配给广播信号。 附加数据插入单元将附加数据插入到训练信号中。 信号发送单元发送附加数据插入的训练信号。 （附图标记）（310）信号分配单元; （320）附加数据插入单元; （330）信号传输单元
-
公开(公告)号：KR1020120132454A
公开(公告)日：2012-12-05
申请号：KR1020120119271
申请日：2012-10-25
Applicant: 한국전자통신연구원
CPC classification number: H04N5/4401 , H04N7/122 , H04N7/52
Abstract: PURPOSE: A broadcast signal receiving method and a device thereof are provided to supply separate transmission types according to a frequency domain and a time domain. CONSTITUTION: An A/D converting unit(510) receives a transmission frame. The A/D converting unit converts the received transmission frame into a distal signal. The transmission frame includes a plurality of transmission data. The transmission frame includes a frame header including information about the transmission data. A frame header determining unit(520) decodes frame header information from the transmission frame. A transmission data selecting unit outputs one of the transmission data based on the frame header information. [Reference numerals] (510) A/D converting unit; (520) Frame header determining unit; (530) Fourier converting unit; (540) Service selecting unit; (AA) Transmitting signal; (BB) Digital demodulation unit 1; (CC) Digital demodulation unit 2; (DD) Digital demodulation unit 3; (EE) Channel decoding unit 1; (FF) Channel decoding unit 2; (GG) Channel decoding unit 3; (HH) Service 1; (II) Service 2; (JJ) Service 3
Abstract translation: 目的：提供广播信号接收方法及其装置，以根据频域和时域提供单独的传输类型。 构成：A / D转换单元（510）接收传输帧。 A / D转换单元将接收到的传输帧转换为远端信号。 发送帧包括多个发送数据。 传输帧包括包括关于传输数据的信息的帧报头。 帧头确定单元（520）从传输帧解码帧头信息。 发送数据选择单元基于帧头信息输出发送数据之一。 （附图标记）（510）A / D转换单元; （520）帧头确定单元; （530）傅里叶变换单元; （540）服务选择单元; （AA）发射信号; （BB）数字解调单元1; （CC）数字解调单元2; （DD）数字解调单元3; （EE）信道解码单元1; （FF）信道解码单元2; （GG）信道解码单元3; （HH）服务1; （二）服务2; （JJ）服务3
-
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。
-
公开(公告)号：KR1020100066371A
公开(公告)日：2010-06-17
申请号：KR1020090117389
申请日：2009-11-30
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A transmission/reception method of a signal and an apparatus thereof for handover in a broadcasting network for minimizing an effect on broadcasting service quality are provided to supply a seamless mobile broadcasting service by automatically performing handoff of a broadcasting frequency channel. CONSTITUTION: A baseband broadcasting signal generator(310) generates a baseband signal from transmitted broadcast data. A transmitter identifying signal column generator(320) generates the identification signal of the transmitter. A first transmission unit combines the broadcast signal transformed to the baseband signal and identification signal. A second transmission unit modulates the identification signal.
Abstract translation: 目的：提供一种信号的发送/接收方法及其在广播网络中的切换用于使对广播服务质量的影响最小化的方法，以通过自动执行广播频道的切换来提供无缝移动广播服务。 构成：基带广播信号发生器（310）从发送的广播数据生成基带信号。 发射机识别信号列发生器（320）产生发射机的识别信号。 第一发送单元将变换后的广播信号与基带信号和识别信号进行合成。 第二传输单元调制识别信号。
-
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。
-
-
-
-
-
-
-
-
-
Search Results
195
records
(took 0.036 seconds)
