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公开(公告)号：KR1020170075127A
公开(公告)日：2017-07-03
申请号：KR1020150184147
申请日：2015-12-22
Applicant: 한국전자통신연구원
Abstract: 본발명은영상처리에관한것으로, 상세하게는, 인터넷에서패킷손실이발생하는경우에도영상회의와같은미디어통신서비스품질을유지할수 있는경량화된데이터복구기술에관한것이다. 본발명의일 실시예에따르면, 제1 시드값을이용하여 K x L 요소로구성된 LT(Luby Transform) 행렬을생성하는단계-여기서, 소정의확률에따라상기 K x L 요소중 적어도일부가 1임-, 제2 시드값을이용하여 H x K 요소로구성된 HDPC(High Density Parity Check) 행렬을생성하는단계, H x H 요소로구성된단위행렬을생성하는단계및 상기 LT 행렬, 상기 HDPC 행렬, 및상기단위행렬을결합하여결합행렬을생성하는단계를포함하는패킷손실복구처리를위한경량화된채널코딩방법이제공된다.
Abstract translation: 本发明涉及图像处理，更具体地说，涉及即使在因特网上发生分组丢失时也能够保持诸如视频会议等媒体通信服务的质量的轻量级数据恢复技术。 根据本发明的实施例，提供了一种使用第一种子值生成由K×L个元素组成的Luby变换（LT）矩阵的方法，其中至少一些K×L个元素 使用第二种子值生成由H×K个元素组成的HDPC（高密度奇偶校验）矩阵，生成由H×H个元素组成的单位矩阵，并生成LT矩阵，HDPC矩阵， 并结合酉矩阵生成组合矩阵，提供了用于丢包恢复处理的加权信道编码方法。
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公开(公告)号：KR1020160099977A
公开(公告)日：2016-08-23
申请号：KR1020150022368
申请日：2015-02-13
Applicant: 한국전자통신연구원
IPC: H04N7/15 , H04N21/4788
CPC classification number: H04N7/155 , H04N7/152 , H04N7/157 , H04N21/4788
Abstract: 본발명의일 실시예에따른데이터처리장치는네트워크를통해영상회의서비스에접속한복수의단말들로부터전송되는미디어데이터들의중요도를결정하는결정부, 및상기중요도에기초하여상기미디어데이터들을믹싱처리하는처리부를포함할수 있다.
Abstract translation: 根据本发明的实施例，数据处理装置包括：确定单元，被配置为确定通过网络连接到视频会议服务的多个终端发送的媒体数据的重要性; 以及处理单元，被配置为基于重要性来混合媒体数据。 因此，数据处理装置可以提高视频会议服务的质量。
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公开(公告)号：KR1020160062680A
公开(公告)日：2016-06-02
申请号：KR1020150145919
申请日：2015-10-20
Applicant: 한국전자통신연구원
IPC: H04N7/15
Abstract: 본발명의실시예에따른다지점영상회의방법은다지점의복수의클라이언트단말간의영상회의를위한다지점영상회의방법에있어서, 상기복수의클라이언트단말을발언권이있는패널그룹과발언권이없는방청객그룹으로분류하는단계; 상기패널그룹의클라이언트단말로부터비디오패킷및 오디오패킷을수신하는단계; 및상기패널그룹의비디오패킷및 오디오패킷을믹싱하는단계; 및상기방청객그룹및 상기패널그룹의클라이언트단말로상기믹싱된비디오패킷및 오디오패킷을전송하는단계를포함할수 있다.
Abstract translation: 本发明的实施例提供一种能够容易地扩大参与视频会议的人数的多点视频会议装置和方法。 根据本发明的实施例，提供了一种用于在多个客户终端之间的多个视频会议的多点视频会议方法，所述方法包括以下步骤：将客户终端分类为具有 发言权和观众团体无权发言; 从面板组的客户终端接收视频分组和音频分组; 混合面板组的视频数据包和音频数据包; 并将混合视频分组和音频分组发送到观众组和面板组的客户终端。
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公开(公告)号：KR1020130041747A
公开(公告)日：2013-04-25
申请号：KR1020120114719
申请日：2012-10-16
Applicant: 한국전자통신연구원
IPC: H04L1/00 , H04L12/951 , H03M13/03
Abstract: PURPOSE: Device and method transmitting data are provided to quickly and maximally recover a lost data packet and to stably transceive massive data by generating an excessive data packet and transmitting the data packet and excessive data packet after confirming data pattern analysis of a data packet to be transmitted in case of transception of a data packet using a wireless channel. CONSTITUTION: A data transmission device includes a detection unit(306) confirming the state of data sample according to a data pattern of data packet to be transmitted through a wireless channel, a selection unit(314) calculating state probability of a data sample according to a state of data sample and determining generation of an excessive data packet of data packet based on the state probability of the data sample, a FEC(Forward Error Correction) module(31) generating the excessive data packet using the data packet according to the generation decision of the excessive data packet and an interface module transmitting the data packet and excessive data packet through the wireless channel. [Reference numerals] (304) Audio interface; (306) Detection unit; (308) Codec encoder; (310) RTP encoder; (312) Network interface; (312) FEC module; (314) Selection unit; (320) IP network;
Abstract translation: 目的：提供设备和方法传输数据，以快速和最大限度地恢复丢失的数据包，并通过在确认数据包的数据模式分析确认数据包之后产生过多的数据包并发送数据包和过多的数据包，稳定收发海量数据 在使用无线信道传输数据分组的情况下传输。 构成：数据传输装置包括根据要通过无线信道发送的数据分组的数据模式来确认数据样本的状态的检测单元（306），根据以下方式计算数据样本的状态概率的选择单元（314）： 基于数据样本的状态概率来确定数据分组的过度数据分组的生成状态;根据生成的数据分组生成过量数据分组的FEC（前向纠错）模块（31） 决定过量的数据包和接口模块通过无线信道发送数据包和过多的数据包。 （附图标记）（304）音频接口; （306）检测单元; （308）编解码器; （310）RTP编码器; （312）网络接口; （312）FEC模块; （314）选择单位; （320）IP网络;
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公开(公告)号：KR101235830B1
公开(公告)日：2013-02-21
申请号：KR1020080008590
申请日：2008-01-28
Applicant: 한국전자통신연구원
IPC: G10L19/02 , G10L19/032
CPC classification number: G10L21/0208 , G10L19/24 , G10L21/0316 , G10L21/038 , G11B20/10527 , G11B2020/10555 , H03G3/341
Abstract: 음성코덱의 품질향상장치 및 그 방법이 개시된다. 저대역(lower-band) 코덱을 통해 디코딩된 신호의 제1 에너지를 구하고 저대역 음질 향상모드를 통해 디코딩된 신호의 제2 에너지를 구한 후, 제1 에너지가 미리 설정된 제1 임계값보다 작거나, 제1 에너지가 제2 에너지에 미리 설정된 제2 임계값을 곱한 값보다 작은 경우에 디코딩된 신호의 크기를 스케일링함으로써 묵음 구간의 양자화 오차를 줄인다.
음성코덱, 묵음 구간, 저대역 향상 모드, 스케일링Abstract translation: 公开了一种用于改善语音编解码器的质量的装置和方法。 解码信号的第一能量通过低带编解码器获得，解码信号的第二能量通过低带音质增强模式获得，然后第一能量小于预定的第一阈值 并且当第一能量小于第二能量乘以预设第二阈值时，通过缩放解码信号的大小来减小静音周期的量化误差。
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Patent Agency Ranking
公开(公告)号：KR1020120063422A
公开(公告)日：2012-06-15
申请号：KR1020110064864
申请日：2011-06-30
Applicant: 한국전자통신연구원
CPC classification number: G10L21/02 , G10L2021/02082 , H04B3/23
Abstract: PURPOSE: An acoustic echo removing apparatus and a method thereof are provided to control data width and to bypass operation of a logic in an adaptive filter algorithm. CONSTITUTION: An error signal generating unit(30) subtracts a similarity echo signal from the inputted radical speaker signal. The error signal generating unit generates an error signal. A filter control unit(40) determines a convergence state of the filter factor on an error signal. The filter control unit controls the data width if the filter factor is determined in a convergence state.
Abstract translation: 目的：提供一种声回波消除装置及其方法，以控制数据宽度并绕过自适应滤波算法中的逻辑运行。 构成：误差信号生成单元（30）从输入的激进扬声器信号中减去相似度回波信号。 误差信号生成部生成误差信号。 滤波器控制单元（40）确定滤波器因子对误差信号的收敛状态。 如果在收敛状态下确定了滤波因子，则滤波器控制单元控制数据宽度。
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公开(公告)号：KR1020110128147A
公开(公告)日：2011-11-28
申请号：KR1020110047211
申请日：2011-05-19
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An AP, a terminal and a method thereof performing an AP access control and considering the complexity of transmission channel are provided to select an AP by enabling a user to utilize the complexity information of the transmission channel expressing that the traffic load level of an AP and the signal strength information which is received from an AP. CONSTITUTION: A measuring unit(101) measures the complexity of a transmission channel expressing the collision complexity between frame in a busy channel interval. A broadcasting unit(103) broadcasts the complexity of the transmission channel to a terminal which is included in the service range of the AP by including the complexity of the transmission channel to the beacon frame. The measuring unit measures an agreement rate of an idle time and the busy time as the complexity of the transmission channel.
Abstract translation: 目的：提供一种执行AP接入控制并考虑传输信道复杂度的AP，终端及其方法，通过使用户能够利用传输信道的复杂度信息来选择AP，该复杂度信息表示传输信道的业务负载水平 AP和从AP接收的信号强度信息。 规定：测量单元（101）测量表示在忙信道间隔中的帧之间的冲突复杂度的传输信道的复杂度。 广播单元（103）通过将传输信道的复杂度包括在信标帧中，将传输信道的复杂度广播到包括在AP的服务范围内的终端。 测量单元测量空闲时间和繁忙时间的一致率作为传输信道的复杂度。
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公开(公告)号：KR1020110068786A
公开(公告)日：2011-06-22
申请号：KR1020100044030
申请日：2010-05-11
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An audio signal processing apparatus and method, and a terminal apparatus are provided to reduce the data processing time of a broadband codec by efficiently sharing the data between the software and hardware processing modules in a system that process a broadband codec with dedicated hardware logic. CONSTITUTION: A monitoring unit(130) monitors new data saved in a system memory(35). A local memory(145) stores the data to a separate storage which is physically different from the system memory. If the input of the new data is detected, a local memory controller(140) reads the new data and stores in the local memory. The local memory controller transmits result value stored in the local memory to the system memory.
Abstract translation: 目的：提供音频信号处理装置和方法以及终端装置，通过在具有专用硬件逻辑处理宽带编解码器的系统中有效地共享软件和硬件处理模块之间的数据来减少宽带编解码器的数据处理时间 。 构成：监视单元（130）监视保存在系统存储器（35）中的新数据。 本地存储器（145）将数据存储到与系统存储器物理上不同的单独存储器。 如果检测到新数据的输入，则本地存储器控制器（140）读取新数据并存储在本地存储器中。 本地存储器控制器将存储在本地存储器中的结果值传输到系统存储器。
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公开(公告)号：KR100932925B1
公开(公告)日：2009-12-21
申请号：KR1020070132732
申请日：2007-12-17
Applicant: 한국전자통신연구원
IPC: G06F13/28
CPC classification number: G06F13/28
Abstract: A direct memory access controller (DMAC) for improving data transmission efficiency in multi-media over internet protocol (MMoIP) and a method therefor are provided. The DMAC requests and obtains a bus control right by determining that a DMA request signal is generated not only when a DMA request signal of a module for processing data in MMoIP is received but also when an operation of a timer operating during a predetermined period set considering periodicity of data in MMoIP is completed. Thus, the time taken to request a bus control right in a conventional DMAC can be reduced, thereby improving data transmission efficiency in MMoIP.
Abstract translation: 提供了用于提高基于互联网协议的多媒体（MMoIP）中的数据传输效率的直接存储器访问控制器（DMAC）及其方法。 DMAC通过确定不仅在接收到用于处理MMoIP中的数据的模块的DMA请求信号时产生DMA请求信号，而且在考虑到在考虑在预定时间段期间设定的定时器的操作时产生DMA请求信号来请求并获得总线控制权 MMoIP中数据的周期性已完成。 因此，可以减少在传统的DMAC中请求总线控制权的时间，从而提高了MMoIP中的数据传输效率。
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公开(公告)号：KR100922731B1
公开(公告)日：2009-10-22
申请号：KR1020070126374
申请日：2007-12-06
Applicant: 한국전자통신연구원
IPC: H04L12/66
CPC classification number: H04L12/66
Abstract: 광대역 음성 코덱을 적용한 인터넷 전화용 통신 단말장치 및 인터넷 전화 통화 방법이 개시된다. 유무선을 통해 인터넷으로부터 수신한 광대역 음성 신호를 광대역 음성 코덱을 이용하여 디코딩하고, 광대역을 지원하는 마이크를 통해 입력받은 광대역 음성 신호를 광대역 음성 코덱을 이용하여 인코딩함으로써, 인터넷 전화에서 고품질의 음성 통화 품질을 제공한다.
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