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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
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公开(公告)号：KR1020130090814A
公开(公告)日：2013-08-14
申请号：KR1020130011301
申请日：2013-01-31
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method for providing multimedia using mobile broadcast service and a system thereof are provided to provide multimedia by using interchangeability of a broadcast channel and a personal mobile communication channel. CONSTITUTION: Multimedia is provided through a broadcast channel on the basis of a user terminal (S310). When the multimedia is not able to be provided through the broadcast channel, the multimedia is provided through a mobile communication channel (S320). Information about the multimedia which is provided through the mobile communication channel is statistically calculated on the basis of the position of the user terminal (S330). The multimedia provided through the broadcast channel is updated using the information according to the statistics (S340). [Reference numerals] (AA) Start; (BB) End; (S310) Multimedia is provided through a broadcast channel; (S320) When the multimedia is not able to be provided through the broadcast channel, the multimedia is provided through a mobile communication channel; (S330) Information about the multimedia which is provided through the mobile communication channel is statistically calculated on the basis of the position of the user terminal; (S340) Multimedia provided through the broadcast channel is updated using the information according to the statistics
Abstract translation: 目的：提供使用移动广播服务提供多媒体的方法及其系统，通过使用广播频道和个人移动通信信道的可互换性来提供多媒体。 构成：通过基于用户终端的广播频道提供多媒体（S310）。 当不能通过广播频道提供多媒体时，通过移动通信信道提供多媒体（S320）。 基于用户终端的位置对通过移动通信信道提供的多媒体的信息进行统计计算（S330）。 使用根据统计信息的信息来更新通过广播频道提供的多媒体（S340）。 （附图标记）（AA）开始; （BB）结束; （S310）通过广播信道提供多媒体; （S320）当通过广播信道不能提供多媒体时，通过移动通信信道提供多媒体; （S330）根据用户终端的位置统计计算通过移动通信信道提供的关于多媒体的信息; （S340）使用根据统计信息的信息更新通过广播频道提供的多媒体
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63.发明授权
公开(公告)号：KR101289886B1
公开(公告)日：2013-07-24
申请号：KR1020100009848
申请日：2010-02-03
Applicant: 한국전자통신연구원
CPC classification number: H04N21/2368 , H04N21/234327 , H04N21/2362 , H04N21/2365 , H04N21/4345 , H04N21/631
Abstract: 본 발명에 따른 송신 장치는 방송 서비스를 위한 송신 장치로서, 기본 계층 기초 스트림 및 향상 계층 기초 스트림을 수신하여 각각의 동기 계층(sync layer, SL) 패킷을 생성하는 SL 패킷화기, 상기 SL 패킷 각각을 패킷 단위 기초 스트림 (packetized elementary stream, PES) 패킷으로 변환하는 PES 패킷화기, 상기 PES 패킷을 다중화하여 기본 계층 전송 스트림(transport stream)을 출력하는 제1 TS 다중화부, 그리고 상기 PES 패킷을 다중화하여 향상 계층 전송 스트림을 출력하는 제2 TS 다중화부를 포함하고, 상기 제2 TS 다중화부는 상기 향상 계층 전송 스트림이 상기 기본 계층 전송 스트림에 의존하는 지 여부에 대한 정보를 포함하는 서술자를 상기 향상 계층 전송 스트림에 삽입한다.
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公开(公告)号：KR1020130018485A
公开(公告)日：2013-02-25
申请号：KR1020120035209
申请日：2012-04-05
Applicant: 한국전자통신연구원
CPC classification number: H04L65/602 , H04L65/4076 , H04L65/80 , H04N7/173 , H04N7/24 , H04N21/2343
Abstract: PURPOSE: A video service providing method for providing a real time video service without disconnection in a wired, wireless or integrated communications network and an apparatus for the same are provided to apply a special source coding method and a communications technique called double bearer, thereby obtaining improved performance and a path diversity effect. CONSTITUTION: An urgent service request signal is received in a process of receiving a video service from a terminal which receives the video service(S110). A bearer is additionally set up in order to provide a high quality video service in a process of receiving the urgent service request signal from the terminal(S120). A video source stream is divided into two streams(S130). Each stream divided in the stream division stage is assigned to a base bearer and to an additional bearer(S140). [Reference numerals] (AA) Start; (BB) End; (S110) Receiving an emergency service request signal from a terminal; (S120) Additionally setting a bearer; (S130) Dividing a video source stream into streams having odd frames and streams having even frames; (S140) Assigning the divided stream in a basic bearer and the additional bearer and transmitting to the terminal
Abstract translation: 目的：提供一种用于在有线，无线或集成通信网络中提供实时视频服务而不断开的视频服务提供方法及其装置，以应用特殊的源编码方法和称为双承载的通信技术，从而获得 改进的性能和路径分集效应。 构成：在从接收视频业务的终端接收视频业务的处理中接收到紧急业务请求信号（S110）。 为了在从终端接收紧急业务请求信号的处理中提供高质量的视频服务，另外建立承载（S120）。 视频源流被分成两个流（S130）。 在流分割级中划分的每个流被分配给基站承载和附加承载（S140）。 （附图标记）（AA）开始; （BB）结束; （S110）从终端接收紧急服务请求信号; （S120）另外设置承载; （S130）将视频源流划分为具有偶数帧的奇数帧和流的流; （S140）将划分的流分配给基本承载和附加承载并发送到终端
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公开(公告)号：KR101214561B1
公开(公告)日：2012-12-24
申请号：KR1020090106023
申请日：2009-11-04
Applicant: 한국전자통신연구원
Abstract: 계층변조기법이적용된방송시스템에서프레임동기검출용신호를수신하는방법은서비스제공신호와서비스제공신호에새로추가되는신호를포함하는계층변조신호로부터위상기준심볼신호를수신하고, 수신한위상기준심볼신호와동기입력신호를상호상관하여복수개의상호상관값을산출하여, 복수개의상호상관값중 피크상관값을토대로계층변조신호의시작시점을검출한다.
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Patent Agency Ranking
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
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67.发明公开데이터 변조시 데이터 추가가 가능한 데이터 송신 장치와 방법, 및 데이터 분리 복원 장치와 방법 有权用于在数据调制中插入附加数据的数据传输装置和数据传输方法，以及用于分离处理数据的数据重新发送装置和数据重新配置方法
公开(公告)号：KR1020120090735A
公开(公告)日：2012-08-17
申请号：KR1020110046741
申请日：2011-05-18
Applicant: 한국전자통신연구원
Inventor： 임종수
IPC: H04L27/26
CPC classification number: H04L27/26
Abstract: PURPOSE: A data transmission apparatus and data transmission method for adding data, and data separation and restoration apparatus and method are provided to transmit service channel information and the modulation parameter information of a physical layer by using an additionally obtained information channel. CONSTITUTION: A first data modulation unit(110) includes a first symbol mapping unit which maps first input data by symbol. The first data modulation unit generates first modulation data by digitally modulating first input data using multi carrier modulation. A second symbol mapping unit(120) generates second mapping data by mapping added second input data by symbol. A second data modulation unit(130) combines the second mapping data with the first modulation data. The second data modulation unit generates second modulation data through the digital modulation of a predetermined digital modulation system. A data transmission unit(140) transmits the second modulation data to the outside.
Abstract translation: 目的：提供一种用于添加数据的数据传输装置和数据传输方法，以及数据分离和恢复装置和方法，通过使用额外获得的信息信道来传送业务信道信息和物理层的调制参数信息。 构成：第一数据调制单元（110）包括第一符号映射单元，其通过符号映射第一输入数据。 第一数据调制单元通过使用多载波调制对第一输入数据进行数字调制来生成第一调制数据。 第二符号映射单元（120）通过用符号映射添加的第二输入数据来生成第二映射数据。 第二数据调制单元（130）将第二映射数据与第一调制数据组合。 第二数据调制单元通过预定的数字调制系统的数字调制生成第二调制数据。 数据发送单元（140）将第二调制数据发送到外部。
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公开(公告)号：KR101105400B1
公开(公告)日：2012-01-17
申请号：KR1020090013034
申请日：2009-02-17
Applicant: 한국전자통신연구원
Abstract: 본 발명은 채널 추정 및 등화 방법 그리고 그 장치에 관한 것이다.
방송 수신 시스템에서 수신 신호를 토대로 채널을 추정하고 등화하는 장치는 수신 신호- 수신 신호는 기본 계층 신호와 향상 계층 신호가 계층 변조되어 있음-에서 크기 정보를 추출하고, 크기 정보를 필터링 하여 채널을 추정하며, 추정한 채널을 토대로 추출한 크기 정보를 등화한다. 다음, 장치는 등화된 크기 정보를 토대로 향상 계층 신호-향상 계층으로 기본 계층 신호에 부가되는 서비스를 제공하는 신호-를 추출한다.
이로써, 본 발명은 크기 정보를 이용하는 채널 추정 및 등화 방법을 통해 데이터의 수신 성능을 증가시킬 수 있다.
디지털 멀티미디어 방송, OFDM, 채널 추정, 등화-
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公开(公告)号：KR101042352B1
公开(公告)日：2011-06-17
申请号：KR1020080085335
申请日：2008-08-29
Applicant: 한국전자통신연구원
IPC: H04N21/434 , H04N21/4728
Abstract: 본 발명은 디지털 멀티미디어 방송 시스템에서의 방송신호 수신장치 및 그 방법에 관한 것이다.
본 발명은, 사용자가 관심영역을 설정하면, 해당 관심영역에 포함된 매크로 블록의 기본 계층 및 강화 계층의 비디오 기본 스트림을 모두 이용하여 복호한 비디오 신호를 전체 또는 부분 화면으로 확대하여 사용자에게 제공한다.
DMB, SVC, 관심영역, 확대
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