-
公开(公告)号：KR1020120111593A
公开(公告)日：2012-10-10
申请号：KR1020110030161
申请日：2011-04-01
Applicant: 한국방송공사
CPC classification number: H04N21/234 , H04H60/72 , H04H2201/11 , H04L65/4076 , H04L65/607 , H04N21/8586
Abstract: PURPOSE: A broadcast system for providing an HTTP streaming video service in a digital multimedia broadcast is provided to supply a streaming video service using an HTTP protocol. CONSTITUTION: An encoder(110) encodes video content. The encoder generates a plurality of bit streams with different bit rates. A splitter(120) splits each bit stream into segments. A segment information generator(140) generates control information about each segment. A DMB transmitting unit(130) transmits the segments and the control information to a DMB terminal. [Reference numerals] (110) Encoder; (120) Splitter; (130) DMB transmitting unit; (140) Segment information generator; (150) Internet transmitting unit; (AA) Video content
Abstract translation: 目的：提供一种用于在数字多媒体广播中提供HTTP流视频服务的广播系统，以使用HTTP协议提供流视频服务。 构成：编码器（110）对视频内容进行编码。 编码器产生具有不同比特率的多个比特流。 分路器（120）将每个位流分割成段。 段信息生成器（140）生成关于每个段的控制信息。 DMB发送单元（130）将段和控制信息发送到DMB终端。 （附图标记）（110）编码器; （120）分流器; （130）DMB发送单元; （140）段信息发生器; （150）互联网发送单元; （AA）视频内容
-
公开(公告)号：KR1020120097046A
公开(公告)日：2012-09-03
申请号：KR1020110016360
申请日：2011-02-24
Applicant: 한국방송공사
IPC: H04N7/08
CPC classification number: H04N21/8133 , G01S19/39 , G06F17/30 , H04L65/4084 , H04N21/845
Abstract: PURPOSE: A broadcast service providing device in connection with location information and object information is provided to insert metadata and geographic location information to each segment of an image scene. CONSTITUTION: An image editing unit(130) distinguishes images by scenes. The image editing unit classifies the scenes into segments. A segment classifying unit(140) classifies the segments by an identifier. A metadata inserting unit(150) inserts metadata of each image to each segment. A location information mapping unit(160) maps geographic location information on each segment. [Reference numerals] (110) Image monitoring unit; (120) Location information obtaining unit; (130) Image editing unit; (140) Segment classifying unit; (150) Metadata inserting unit; (160) Location information mapping unit; (170) Transmitting unit
Abstract translation: 目的：提供与位置信息和对象信息相关的广播服务提供设备以将元数据和地理位置信息插入到图像场景的每个片段。 构成：图像编辑单元（130）根据场景区分图像。 图像编辑单元将场景分为多个段。 段分类单元（140）将段分类为标识符。 元数据插入单元（150）将每个图像的元数据插入每个段。 位置信息映射单元（160）映射每个段上的地理位置信息。 （附图标记）（110）图像监视单元; （120）位置信息获取单元; （130）图像编辑单元; （140）段分类单元; （150）元数据插入单元; （160）位置信息映射单元; （170）发送单元
-
公开(公告)号：KR101081608B1
公开(公告)日：2011-11-09
申请号：KR1020100011325
申请日：2010-02-08
Applicant: 한국방송공사
Abstract: 단일주파수네트워크에서프리코딩을이용한신호송수신방법및 장치가제공된다. 단일주파수네트워크에서프리코딩을이용한신호송신방법은, 프리코딩을위한코드북을할당받는단계와, 심볼매핑된제1 송신심볼및 심볼매핑된제2 송신심볼을생성하는단계와, 상기코드북에포함된프리코딩벡터를이용하여상기제1 송신심볼및 제2 송신심볼을프리코딩하여프리코딩된송신신호를생성하는단계및 편파방향이서로직교특성을갖는제1 안테나및 제2 안테나를이용하여상기프리코딩된송신신호를송신하는단계를포함한다.
-
公开(公告)号：KR1020100055090A
公开(公告)日：2010-05-26
申请号：KR1020080114015
申请日：2008-11-17
Applicant: 한국방송공사
CPC classification number: H04B7/0604 , H04B7/0805 , H04B7/0868
Abstract: PURPOSE: An open loop antenna selection apparatus using an indication bit and a method thereof are provided to remove overhead of uplink signaling according to the unnecessary of a feedback signal by selecting a transceiving antenna through the Indication bit. CONSTITUTION: A modulation unit(101) modulates a input bit stream with a predetermined modulation scheme. The modulation unit outputs the modulated signal. An indication bit extractor(103) extracts an Indication bit for selection of a transmission antenna with use of the bit. The bit is respectively allocated in a symbol. The symbol forms the input bit stream. A transmission antenna switching unit(105) proceeds switching to the transmission antenna corresponding to the Indication bit among a plurality of transmission antennas.
Abstract translation: 目的：提供使用指示位的开环天线选择装置及其方法，以通过通过指示位选择收发天线，根据不需要的反馈信号去除上行链路信令的开销。 构成：调制单元（101）以预定的调制方式调制输入比特流。 调制单元输出调制信号。 指示位提取器（103）使用位提取用于选择发送天线的指示位。 该位分别分配在一个符号中。 符号形成输入位流。 发送天线切换单元（105）进行切换到与多个发送天线中的指示位对应的发送天线。
-
公开(公告)号：KR1020100030369A
公开(公告)日：2010-03-18
申请号：KR1020080089291
申请日：2008-09-10
Applicant: 연세대학교 산학협력단 , 한국방송공사
CPC classification number: H04L27/2628 , H04B7/068 , H04L1/0071 , H04L1/0606 , H04L1/0618
Abstract: PURPOSE: A transmitting/receiving device and a method thereof are provided to maximize space time diversity or space frequency diversity gain by operating a space-time block coding or a space frequency block coding. CONSTITUTION: A symbol mapping unit(110) outputs a complex symbol by modulating an input data. A interleaving unit(120) generates an interleaved complex symbol. A first encoding unit(140-1) outputs a coded signal by operating space time block coding or space frequency block coding for a part of a complex symbol stream. A second encoding unit(140-2) outputs a coded signal by operating space time block coding or space frequency block coding for the other part of the interleaved complex symbol stream. A IFFT processing unit(150) transforms the output signals of the first and the second encoding units to a time domain signal.
Abstract translation: 目的：提供发射/接收装置及其方法，以通过操作空时块编码或空间频率块编码来最大化空间时间分集或空间频率分集增益。 构成：符号映射单元（110）通过调制输入数据来输出复数符号。 交织单元（120）生成交错复合符号。 第一编码单元（140-1）通过对复数符号流的一部分进行空间时间块编码或空间频率块编码来输出编码信号。 第二编码单元（140-2）通过对交织的复数符号流的另一部分进行空间时间块编码或空间频率块编码来输出编码信号。 IFFT处理单元（150）将第一和第二编码单元的输出信号变换为时域信号。
-
Patent Agency Ranking
公开(公告)号：KR100732323B1
公开(公告)日：2007-06-25
申请号：KR1020050133052
申请日：2005-12-29
Abstract: A bandwidth control device for transmitting added data in a terrestrial DMB broadcasting system and a method thereof are provided to automatically control a compression rate of a video codec according to an amount of generated added data and transmit the added data by a desired amount for a desired time period. A bandwidth control device for transmitting added data in a terrestrial DMB broadcasting system includes an added data composing tool(200) for providing a manager with an element for composing added data, and outputting the composed added data. An A/V encoder(100) generates audio TS packets, video TS packets, and null packets by encoding audio signals and video signals. An automatic transmission controller(300) generates data TS packets from the added data and substitutes the null packets received from the A/V encoder with the data TS packet.
Abstract translation: 提供了一种用于在地面DMB广播系统中发送附加数据的带宽控制设备及其方法，用于根据所生成的附加数据量自动地控制视频编解码器的压缩率，并且将所添加的数据发送期望的量以用于期望的 时间段。 一种用于在地面DMB广播系统中发送附加数据的带宽控制设备，包括：附加数据组合工具（200），用于向管理者提供用于组成附加数据的元素，并输出组成附加数据。 A / V编码器（100）通过编码音频信号和视频信号来生成音频TS分组，视频TS分组和空分组。 自动传输控制器（300）从所添加的数据生成数据TS分组，并将从A / V编码器接收的空分组与数据TS分组进行替换。
-
公开(公告)号：KR1019970004173B1
公开(公告)日：1997-03-25
申请号：KR1019930013731
申请日：1993-07-20
Applicant: 한국방송공사
IPC: G10K15/00
Abstract: A method for processing a chamber sound is disclosed. First, a stereophonic sample sound is stored at a delaying buffer(S1). And then, an initial reflected sound and a reference signal of the remaining sound are generated by using the delayed sample sound(S2). Thereafter, a loop time(Ta,Tc) is calculated by using the delayed time of a comb filter(55) of each channel and an all-pass network(553) and, at the same time, a band-pass, a high-pass and a low-pass gains are calculated using the remaining sound time, a high-pass and a low-pass remaining rates(S3). And then, each of the remaining sounds of 16 channels is generated(S4). The remaining sounds of 16 channels are calculated to 4 outputs(S5). Finally, the four remaining channels are provided(S6).
Abstract translation: 公开了一种用于处理室内声音的方法。 首先，在延迟缓冲器（S1）处存储立体声采样声音。 然后，通过使用延迟的采样声音（S2）生成剩余声音的初始反射声音和参考信号。 此后，通过使用每个信道的梳状滤波器（55）和全通网络（553）的延迟时间来计算循环时间（Ta，Tc），并且同时，通带，高 - 通过剩余声音时间，高通和低通剩余率计算低通增益（S3）。 然后，生成16个声道的剩余声音（S4）。 16个通道的剩余声音计算为4个输出（S5）。 最后，提供剩下的四个通道（S6）。
-
公开(公告)号：KR1020140114472A
公开(公告)日：2014-09-29
申请号：KR1020130026549
申请日：2013-03-13
Applicant: 한국방송공사
IPC: H04H20/33
Abstract: The present invention relates to a hierarchical broadcasting transmission system guaranteeing dual polarization-based backward compatibility. More specifically, the present invention relates to a technique capable of introducing a new second broadcast standard while maintaining backward compatibility with a broadcast receiver based on a first broadcast standard utilized conventionally and using the polarization separation of the radio waves.
Abstract translation: 本发明涉及一种保证基于双极化的向后兼容性的分级广播传输系统。 更具体地，本发明涉及一种能够引入新的第二广播标准的技术，同时保持与广播接收机的向后兼容性，这是基于常规使用的第一广播标准和使用无线电波的偏振分离。
-
公开(公告)号：KR101328339B1
公开(公告)日：2013-11-11
申请号：KR1020110120988
申请日：2011-11-18
IPC: H04W36/02 , H04L29/06 , H04N21/2387
Abstract: 복수의 무선 네트워크를 이용하여 스트리밍 멀티미디어를 수신하여 재생하는 스트리밍 멀티미디어 재생 장치가 개시된다. 스트리밍 멀티미디어 재생 장치는 무선 네트워크간 핸드 오버를 수행하는 경우에, 스트리밍 멀티미디어를 2단계 버퍼를 이용하여 관리함으로써 무선 네트워크간의 핸드 오버 시에도 스트리밍 멀티미디어를 끊기지 않고 재생할 수 있다.
-
公开(公告)号：KR101303420B1
公开(公告)日：2013-09-05
申请号：KR1020110105838
申请日：2011-10-17
Applicant: 한국방송공사
Abstract: 디지털 TV 방송국으로부터 디지털 방송 수신 장치까지의 무선 채널을 정확히 추정할 수 있는 DTV 방송 시스템이 개시된다. 디지털 방송 수신 장치는 디지털 TV 방송국으로부터 수신한 PN 시퀀스를 주파수 영역으로 변환하고, 변환된 PN 시퀀스 중의 일부 성분만을 이용하여 채널을 추정함으로써, 계산량이 감소한다. 디지털 방송 수신 장치는 무선 채널의 실수 성분뿐만 아니라, 허수 성분도 추정할 수 있어 채널 추정의 정확성이 향상된다.
-
-
-
-
-
-
-
-
-
Search Results
36
records
(took 0.027 seconds)
