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公开(公告)号：KR1020150101326A
公开(公告)日：2015-09-03
申请号：KR1020140022905
申请日：2014-02-26
Applicant: 한국전자통신연구원
IPC: H04N21/254 , H04N21/4623
CPC classification number: H04N21/4623
Abstract: 방송 융합 시스템은 오픈케이블 시청자격메시지 및 닥시스 시청자격메시지를 생성하는 발생부, 상기 발생부로부터 오픈케이블 시청자격메시지를 수신하고, 상기 오픈케이블 시청자격메시지가 포함된 오픈케이블 방송 신호를 송출하는 오픈케이블 헤드엔드, 상기 발생부로부터 상기 닥시스 시청자격메시지를 수신하고, 상기 닥시스 시청자격메시지가 포함된 닥시스 방송 신호를 송출하는 닥시스 헤드엔드, 그리고 상기 오픈케이블 헤드엔드로부터 수신된 상기 오픈케이블 방송 신호를 상기 닥시스 방송 신호로 변환하여 닥시스 아이피 텔레비젼 수신기로 송출하고, 상기 닥시스 헤드엔드로부터 수신된 상기 닥시스 방송 신호를 상기 오픈케이블 방송 신호로 변환하여 오픈케이블 수신기로 송출하는 방송융합 플랫폼 장치를 포함한다.
Abstract translation: 广播收敛系统本发明涉及一种广播收敛系统，包括：生成单元，用于生成开放有线电视授权消息和数据通过电缆服务接口规范（DOCSIS）授权消息; 用于从所述生成单元接收所述开放电缆授权消息的开放电缆头端，以及发送包括所述开放电缆授权消息的开放有线广播信号; DOCSIS前端，用于从生成单元接收DOCSIS授权消息，并发送包括DOCSIS授权消息的DOCSIS广播信号; 以及广播会聚平台装置，用于将从开放电缆头端接收的开放有线广播信号转换成DOCSIS广播信号，以将其发送到DOCSIS IP电视接收机，并将从DOCSIS前端接收的DOCSIS广播信号转换成开放电缆 广播信号将其发送到打开的电缆接收机。
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公开(公告)号：KR101463293B1
公开(公告)日：2014-11-21
申请号：KR1020110132769
申请日：2011-12-12
Applicant: 한국전자통신연구원
IPC: H04L27/26
Abstract: 본 발명은 신호 대 잡음비에 따른 채널별 변조기법 선택장치 및 방법에 관한 것으로서, 주기적으로 전송되는 프리앰블 신호를 수신하는 프리앰블 신호 수신부, 상기 수신된 프리앰블 신호로부터 채널 상태 정보를 측정하는 채널 상태 정보 측정부, 상기 측정한 채널 상태 정보로부터 신호 대 잡음비(SNR)를 추정하는 신호 대 잡음비 추정부, 및 상기 추정된 신호 대 잡음비를 송신측 단말기로 피드백 처리하는 피드백 처리부를 포함하고, 상기 송신측 단말기는, 상기 피드백 처리된 신호 대 잡음비와 이전 수신된 신호의 신호 대 잡음비가 동일한지 비교하고, 상기 비교 결과 동일한 경우, 상기 프리앰블 신호의 전송에 사용된 대역폭과 변조방식을 유지하고, 상기 비교 결과 동일하지 않은 경우, 상기 프리앰블 신호의 전송에 사용된 대역폭 및 변조방식 중에 서 적어도 하나를 변경할 수 있다.
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公开(公告)号：KR1020140112745A
公开(公告)日：2014-09-24
申请号：KR1020130027185
申请日：2013-03-14
Applicant: 한국전자통신연구원
IPC: H04J11/00
CPC classification number: H04L5/001 , H04L5/0098 , H04L27/2613 , H04L27/2602 , H04L27/2655
Abstract: Disclosed are orthogonal frequency division multiplexing transmission method and apparatus. The method in the present invention comprises the steps of: generating a transmission frame including a preamble section including a channel connection information; adjusting the transmission frame to be timely synchronized with the transmission frames of the other channels; and transmitting the synchronized transmission frame through at least one of the connected channels.
Abstract translation: 公开了正交频分复用传输方法和装置。 本发明的方法包括以下步骤：生成包括具有信道连接信息的前同步码部分的发送帧; 调整传输帧与其他信道的传输帧及时同步; 以及通过所连接的信道中的至少一个发送所述同步传输帧。
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34.发明公开
公开(公告)号：KR1020140106894A
公开(公告)日：2014-09-04
申请号：KR1020130021141
申请日：2013-02-27
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2665 , H04L27/265 , H04L27/2695
Abstract: A time synchronization method in an orthogonal frequency division multiplexing (OFDM) system comprises: a coarse time synchronization step of determining the start position of an OFDM symbol by performing coarse time synchronization using correlation of a protection interval of the OFDM symbol of a received signal; and a fine time synchronization step of estimating the fast Fourier transform (FFT) window position of the OFDM symbol by performing fine time synchronization through analysis of channel impulse response (CIR) characteristics of the received signal. Therefore, complexity of time offset estimation can be reduced, and accuracy of offset estimation can be improved.
Abstract translation: 正交频分复用（OFDM）系统中的时间同步方法包括：粗时间同步步骤，通过使用接收信号的OFDM符号的保护间隔的相关来执行粗略时间同步来确定OFDM符号的开始位置; 以及精细时间同步步骤，通过分析接收信号的信道脉冲响应（CIR）特性来执行精细时间同步来估计OFDM符号的快速傅里叶变换（FFT）窗口位置。 因此，可以减少时间偏移估计的复杂度，并且可以提高偏移估计的精度。
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公开(公告)号：KR101419021B1
公开(公告)日：2014-07-11
申请号：KR1020100112910
申请日：2010-11-12
Applicant: 한국전자통신연구원
CPC classification number: H04N21/4126 , H04N21/42204 , H04N21/42209
Abstract: 본 발명은 스위치드 디지털 비디오(Switched Digital Video, SDV) 기반의 비디오 전송 시스템 구조에서 멀티스크린 서비스 환경을 구성하는 휴대 단말이 TV와 같은 대형 화면을 갖는 수신 단말의 리모콘(Remote Control)과 유사한 역할을 할 수 있도록 하는 것으로서, 발명에 의해 휴대 단말에서 시청하고 있는 방송 채널을 TV 등의 대형 화면과 공유할 수 있으며 또한, 통해 휴대 단말로 수신한 프로그램 가이드 정보로부터 직접 TV 등의 대형 화면으로 프로그램을 시청할 수 있게 제어할 수 있다.
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Patent Agency Ranking
公开(公告)号：KR1020140076869A
公开(公告)日：2014-06-23
申请号：KR1020120145389
申请日：2012-12-13
Applicant: 한국전자통신연구원
CPC classification number: G06Q30/0267 , H04W4/02
Abstract: Disclosed are a method, an apparatus, and a system for providing mobile advertisements in a small-scale wireless network. The method for providing mobile advertisements comprises the steps of: receiving an entrance message notifying that a mobile terminal enters a wireless network; receiving an information reception flag inquiring about whether or not to receive information about events near the current location of the mobile terminal, wherein the information about events includes information about discounts; and transmitting the information about events to the mobile terminal according to a response of the mobile terminal to the information reception flag. Therefore, when a subscriber using a mobile device exists in the network, information about ongoing events within the network can be provided for the subscriber through a short message service (SMS) or a mobile phone application. Consequentially, user convenience is improved.
Abstract translation: 公开了一种用于在小规模无线网络中提供移动广告的方法，装置和系统。 提供移动广告的方法包括以下步骤：接收通知移动终端进入无线网络的入口消息; 接收关于是否接收关于移动终端的当前位置附近的事件的信息的信息接收标志，其中关于事件的信息包括关于折扣的信息; 以及根据移动终端对信息接收标志的响应，将关于事件的信息发送到移动终端。 因此，当在网络中存在使用移动设备的订户时，可以通过短消息服务（SMS）或移动电话应用为用户提供关于网络内正在进行的事件的信息。 因此，用户便利性得到改善。
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公开(公告)号：KR1020130141038A
公开(公告)日：2013-12-26
申请号：KR1020120064116
申请日：2012-06-15
Applicant: 한국전자통신연구원
IPC: G03B21/14
CPC classification number: G03B21/14 , G03B31/04 , H04N5/4401 , H04N9/3129
Abstract: The present invention relates to fusion between car technology and broadcasting technology, in particular, a personal car theater system which is implemented by combining an image projector to a car. The personal car theater system is installed in a car and includes: a multimedia processing unit for obtaining video data and sound data of multimedia contents; an image projector installed in the outside of the car for receiving and projecting the video data from the multimedia processing unit; a switch for selecting one between a general mode in which the image projector operates as a headlight and a broadcasting mode in which the projector projects the video; a sound transmission device for receiving sound data from the multimedia processing unit and transmitting to a terminal using wireless communication; and a terminal for receiving the sound data from the sound transmission device using wireless communication and outputting sound, wherein the multimedia processing unit transmits the sound data to a speaker which is prepared in the car when the switch selects the general mode, and the multimedia processing unit transmits the sound data to the sound transmission device when the switch selects the broadcasting mode. [Reference numerals] (S100) Multimedia processing device;(S110) Image projection device;(S120) Switch;(S130) Sound transmission device;(S140) Terminal
Abstract translation: 本发明涉及汽车技术与广播技术之间的融合，特别涉及通过将图像投影仪与汽车组合而实现的个人车厢系统。 个人车厢系统安装在汽车中，包括：多媒体处理单元，用于获取多媒体内容的视频数据和声音数据; 安装在汽车外部的图像投影仪，用于从多媒体处理单元接收和投影视频数据; 用于在图像投影仪作为头灯操作的一般模式和投影仪投影视频的广播模式之间进行选择的开关; 用于从所述多媒体处理单元接收声音数据并使用无线通信向终端发送的声音传输装置; 以及终端，用于使用无线通信从声音传输装置接收声音数据并输出声音，其中多媒体处理单元在开关选择一般模式时将声音数据发送到在汽车中准备的扬声器，并且多媒体处理 当开关选择广播模式时，单元将声音数据发送到声音传输设备。 （S100）多媒体处理装置;（S110）图像投影装置;（S120）开关;（S130）声音传送装置;（S140）终端
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公开(公告)号：KR1020130080628A
公开(公告)日：2013-07-15
申请号：KR1020120001522
申请日：2012-01-05
Applicant: 한국전자통신연구원
CPC classification number: H04N21/258 , H04N21/2221 , H04N21/6118 , H04N21/6168 , H04N21/64322 , H04N21/64707
Abstract: PURPOSE: A head-end device for a cable network and an operation method of the head-end device are provided to efficiently integrate a digital video data stream and an IP data stream according to the standard of a frequency channel and then transmit the digital video data stream and the IP data stream. CONSTITUTION: A head-end device includes an input processor (151), an active stream processing module (152), and an output stream exchange module (153). The input processor classifies a data stream inputted to a cable network according to a service flow type. The active stream processing module converts the classified data stream into a stream with the standard of the cable network based on the service flow type. The output stream exchange module converts the data stream converted by the active stream module into an input for a physical layer module and outputs the data stream. [Reference numerals] (10,11,12,20) Data stream; (150) Head-end device; (151) Input processor; (152) Active stream processing module; (153) Output stream processing module; (154) Management module
Abstract translation: 目的：提供一种用于电缆网络的头端设备和头端设备的操作方法，以根据频道的标准有效地集成数字视频数据流和IP数据流，然后发送数字视频 数据流和IP数据流。 构成：头端装置包括输入处理器（151），主动流处理模块（152）和输出流交换模块（153）。 输入处理器根据服务流类型对输入到有线网络的数据流进行分类。 活动流处理模块基于业务流类型将分类数据流转换成具有有线网络标准的流。 输出流交换模块将由活动流模块转换的数据流转换为物理层模块的输入，并输出数据流。 （附图标记）（10,11,12,20）数据流; （150）头端装置; （151）输入处理器; （152）主动流处理模块; （153）输出流处理模块; （154）管理模块
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公开(公告)号：KR1020130071722A
公开(公告)日：2013-07-01
申请号：KR1020110139099
申请日：2011-12-21
Applicant: 한국전자통신연구원
CPC classification number: H04N21/41407 , G06K19/06009 , H04N21/266
Abstract: PURPOSE: A method for receiving broadcast stream using a visual code and a system thereof are provided to enable a user to watch desired broadcast stream conveniently by using the visual code. CONSTITUTION: A user terminal is connected to a stream providing server (110). A user selects specific code information in a broadcast code list. The user terminal transmits payment information of the user (130). At least one of payment password, certification number, telephone number or authentication code of the user is transmitted to the stream providing server (140). [Reference numerals] (100) Store code information; (110) Connect a stream server; (120) Recognize a code; (130) Transmit payment information; (140) Input password/certification number; (150) Play a stream
Abstract translation: 目的：提供一种使用可视代码及其系统接收广播流的方法，以使用户能够通过使用视觉代码方便地观看所需广播流。 构成：用户终端连接到流提供服务器（110）。 用户选择广播代码列表中的特定代码信息。 用户终端发送用户的支付信息（130）。 用户的支付密码，认证号码，电话号码或认证码中的至少一个被发送到流提供服务器（140）。 （附图标记）（100）存储代码信息; （110）连接流服务器; （120）识别代码; （130）发送支付信息; （140）输入密码/认证号码; （150）播放流
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公开(公告)号：KR1020130068455A
公开(公告)日：2013-06-26
申请号：KR1020110135630
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04N7/08 , H04H2201/11 , H04N21/4343
Abstract: PURPOSE: A sign language interpretation broadcasting service providing method is provided to play a main image and a sign language interpretation broadcasting having a similar size as the image size of the main broadcasting are simultaneously played by encoding and transmitting a main image for all auditors and a sign language image for hearing impaired people in a DMB(Digital Multimedia Broadcasting) terminal. CONSTITUTION: A DMB reception terminal obtains first program designation information with respect to a main image from a transmission frame of a DMB signal received from a DMB transmission device and second program designation information with respect to a sign language interpretation image. The DMB reception terminal decodes a video transmission stream packet of the main image having the first program designation information and a video transmission stream packet of the sign language interpretation image having the second program designation information and simultaneously reproduces the decoded main image and sign language interpretation image to each region(S714,S716). [Reference numerals] (AA) No; (BB) Yes; (CC) No; (DD) Yes; (S702) Broadcasting program received; (S704) PAT and PMT analysis; (S706) Sign language descriptor existed?; (S708) Sign language and interpretation image TS for PID information acquired; (S710) Choose sign language broadcasting view?; (S712) Sign language and interpretation image PID with TS packet extracted; (S714) Broadcasting image and sign language and interpretation images descrambler; (S716) Broadcasting image and sign language and interpretation images playback; (S718) Broadcasting images descrambler; (S720) DMB playback system of the broadcasted images
Abstract translation: 目的：提供一种手语解释广播服务提供方法来播放主图像，并且通过对所有审核员进行编码和发送主图像同时播放具有与主广播的图像大小相似尺寸的手语解释广播，以及 DMB（数字多媒体广播）终端中的听力障碍者的手语图像。 构成：DMB接收终端从DMB发送装置接收到的DMB信号的发送帧和相对于手语解释图像的第二节目指定信息，获得关于主图像的第一节目指定信息。 DMB接收终端解码具有第一节目指定信息的主图像的视频传输流分组和具有第二节目指定信息的手语解释图像的视频传输流分组，并且同时再现解码的主图像和手语解释图像 到每个区域（S714，S716）。 （附图标记）（AA）否; （BB）是的; （CC）否; （DD）是; （S702）收到广播节目; （S704）PAT和PMT分析; （S706）存在手语描述？ （S708）获取的PID信息的手语和解读图像TS; （S710）选择手语广播视图？ （S712）提取TS包的手语和解释图像PID; （S714）广播图像和手语和解释图像解扰器; （S716）广播图像和手语和解释图像播放; （S718）广播图像解扰器; （S720）广播图像的DMB播放系统
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