公开(公告)号：KR1020140002981A

公开(公告)日：2014-01-09

申请号：KR1020120070109

申请日：2012-06-28

Applicant: 전남대학교산학협력단

Inventor： 김세영 ,  김홍중 ,  김대진 ,  정태진

IPC: H04L27/26

CPC classification number: H04L27/36 ,  H04L1/06

Abstract: The present invention relates to an orthogonal precoder for improving the performance of a spatial multiplexing method in a mobile broadcast system. According to the present invention, the performance is improved by providing the orthogonal precoder with high performance improvement in a Rician channel environment with an eraser phenomenon by serially connecting a precoder with the spatial multiplexing method with two transceiver antennas.

Abstract translation: 本发明涉及用于提高移动广播系统中空间复用方法的性能的正交预编码器。 根据本发明，通过使用两个收发器天线通过空间复用方法串联连接预编码器，通过在具有擦除现象的Rician信道环境中提供具有高性能改进的正交预编码器来提高性能。

公开(公告)号：KR1020130082981A

公开(公告)日：2013-07-22

申请号：KR1020110142531

申请日：2011-12-26

Applicant: 전남대학교산학협력단 ,  한국전자통신연구원

Inventor： 김대진 ,  강미란 ,  김세영 ,  김영일

IPC: G06Q50/10 ,  G06F15/16 ,  H04L29/08

CPC classification number: G06Q50/10 ,  G06F15/16 ,  H04L29/0809

Abstract: PURPOSE: A system for simultaneously and continuously playing a video content between multiple terminals and a method thereof are provided to continuously play the video content which is played in one terminal in a different terminal through synchronization between the multiple terminals, thereby playing an identical video content in the multiple terminals. CONSTITUTION: A control unit (100) controls a content server unit (200) and a video playing terminal unit (300) through digital living network alliance (DLNA) based synchronization. The content server unit searches content information based on play history information received from the control unit and transmits the content information to the video play terminal unit. A first terminal module (310) transmits the play history information which is currently displayed through a request signal received from the control unit to the control unit. A second terminal module (320) receives a command signal of the content server unit and plays a video content corresponding to the play history information simultaneously and continuously. The video playing terminal unit includes the first terminal module and the second terminal module. [Reference numerals] (100) Control unit; (110) Synchronization module; (120) Terminal control module; (130) Server control module; (200) Content server unit; (210) Content DB module; (220) Content search module; (230) Transceiving module; (300) Video playing terminal unit; (310) First terminal module; (320) Second terminal module

Abstract translation: 目的：提供一种用于同时连续播放多个终端之间的视频内容的方法及其方法，用于通过多个终端之间的同步连续播放在不同终端中的一个终端中播放的视频内容，从而播放相同的视频内容 在多个终端。 构成：控制单元（100）通过基于数字生活网络联盟（DLNA）的同步来控制内容服务器单元（200）和视频播放终端单元（300）。 内容服务器单元根据从控制单元接收到的播放历史信息来搜索内容信息，并将该内容信息发送到视频播放终端单元。 第一终端模块（310）通过从控制单元接收的请求信号将当前显示的播放历史信息发送到控制单元。 第二终端模块（320）接收内容服务器单元的命令信号并且同时且连续地播放与播放历史信息相对应的视频内容。 视频播放终端单元包括第一终端模块和第二终端模块。 （附图标记）（100）控制单元; （110）同步模块; （120）端子控制模块; （130）服务器控制模块 （200）内容服务器单元; （210）内容DB模块; （220）内容搜索模块; （230）收发模块; （300）视频播放终端单元; （310）第一终端模块; （320）第二终端模块

公开(公告)号：KR101351595B1

公开(公告)日：2014-01-16

申请号：KR1020120070109

申请日：2012-06-28

Applicant: 전남대학교산학협력단

Inventor： 김세영 ,  김홍중 ,  김대진 ,  정태진

IPC: H04L27/26

Abstract: 본 발명은 이동방송 시스템에서 공간 다중화 기법의 성능 향상을 위한 직교 선부호기에 관한 것으로서, 두 개의 QAM 변조 신호들로 구성된 입력 벡터 를 입력받아 에 곱하여 선부호화한 송신 벡터 을 두 개의 송신 안테나를 통하여 공간 다중화기로 송신하는 선부호기; 송신 벡터 을 2×2의 채널 행렬에 의해 독립적인 채널을 통과시켜 수신 벡터 을 ML 디코더로 송신하는 공간 다중화기; 및 두 개의 수신 안테나를 통하여 수신한 수신 벡터 을 복호화하는 ML 디코더;를 포함한다.
상기와 같은 본 발명에 따르면, 각각 2개의 송수신 안테나를 가지는 공간다중화 기법과 선부호기를 직렬 연접하여 이레이저 현상이 생길 수 있는 Rician 채널 환경에서 큰 성능 향상을 얻는 직교 선부호기를 제공함으로써, 종래의 공간 다중화 기법에 비하여 월등한 성능 향상을 도모하는 효과가 있다.

公开(公告)号：KR1020090114903A

公开(公告)日：2009-11-04

申请号：KR1020080040780

申请日：2008-04-30

Applicant: 전남대학교산학협력단

Inventor： 김대진 ,  오영호 ,  이경원 ,  김세영

IPC: H04N21/436 ,  H04H60/90

CPC classification number: H04N21/4126 ,  H04H20/71

Abstract: PURPOSE: A data broadcasting output system and a data broadcasting output terminal are provided to enable a user to separately view only the data broadcasting by transmitting the data broadcasting outputted from a digital television to a separate data broadcasting output terminal. CONSTITUTION: A data broadcasting output system(100) comprises a digital broadcasting display device and a data broadcasting output terminal. In the digital broadcasting display device(110), a digital broadcast receiver(120) for receiving a digital broadcasting signal is mounted. The data broadcasting output terminal(130) is wirelessly connected to the digital broadcasting display device to receive and output the data broadcasting signal.

Abstract translation: 目的：提供数据广播输出系统和数据广播输出终端，以使得用户能够通过将从数字电视机输出的数据广播发送到单独的数据广播输出终端来仅分开观看数据广播。 构成：数据广播输出系统（100）包括数字广播显示装置和数据广播输出终端。 在数字广播显示装置（110）中，安装了用于接收数字广播信号的数字广播接收机（120）。 数据广播输出端子（130）无线连接到数字广播显示装置以接收和输出数据广播信号。

公开(公告)号：KR100827298B1

公开(公告)日：2008-05-06

申请号：KR1020070017575

申请日：2007-02-21

Applicant: 전남대학교산학협력단

Inventor： 김대진 ,  오영호 ,  이경원 ,  김세영 ,  안창원

IPC: H04N5/445

CPC classification number: H04N5/44543 ,  H04N5/45 ,  H04N5/46 ,  H04N21/4312 ,  H04N21/4332

Abstract: A method for collecting an EPG(Electronic Program Guide) for digital broadcasting is provided to receive EPG information of all channels by using a broadcasting receiving module that the viewer does not use. A method for collecting an EPG for digital broadcasting comprises the following steps of: confirming whether a second receiving module for recording another channel which is not viewed by a viewer or receiving a signal in a sub screen of a multi screen is used or not(S100); if not so, receiving EPG information by using the second receiving module(S110); confirming whether an external interrupt for using the second receiving module is generated while the EPG information is received by using the second receiving module(S120); if so, confirming whether a first receiving module for receiving a signal for enabling a viewer to watch broadcasting in a main screen is used or not(S200); if not so, receiving and storing EPG information by using the first receiving module, and returning to the first step(S210); and if so, returning to the first step.

Abstract translation: 提供了一种用于收集用于数字广播的EPG（电子节目指南）的方法，用于通过使用观众不使用的广播接收模块来接收所有频道的EPG信息。 收集用于数字广播的EPG的方法包括以下步骤：确定是否使用用于记录未被观众观看的另一频道的第二接收模块或者在多画面的子画面中接收到信号（S100 ）; 如果不是，则通过使用第二接收模块接收EPG信息（S110）; 确定在通过使用第二接收模块接收到EPG信息时是否产生用于使用第二接收模块的外部中断（S120）; 如果是，则确认是否使用用于接收用于使观众在主屏幕中观看广播的信号的第一接收模块（S200）。 如果不是，则通过使用第一接收模块接收和存储EPG信息，并返回到第一步骤（S210）; 如果是这样，返回到第一步。