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    • 41. 发明公开
    • 서브 블록별 순차적 업데이트 방식을 이용한 저지연 파운틴코딩 방법
    • 一种用于低延迟编码的基于子块的循环更新方法
    • KR1020080093923A
    • 2008-10-22
    • KR1020080035837
    • 2008-04-17
    • 삼성전자주식회사경희대학교 산학협력단
    • 정도영박태성오윤제서덕영박광훈최범석
    • H04N19/89H03M13/37
    • H04N19/89H03M13/3761
    • A coding method and a decoding method are provided to suppress delay of data effectively, when transmitting the data through a wireless Internet, which causes the loss in a real-time multimedia service sensitive to delay. An input symbol is divided into the predetermined number of same sub-blocks. An encoding time section is divided into same sub-time sections corresponding to the number of the divided sub-blocks. Initial input symbols are generated by using symbols having sizes corresponding to the sub-blocks. Initial output symbols are generated by using the initial input symbols. Symbols corresponding to a new sub-block, which is to be encoded every sub-time section, are sequentially received and then added to the input symbols(710). A symbol corresponding to the first received sub-block is removed to update the input symbol(720). An output symbol related to the first received sub-block is updated. A packet is generated by using the updated output symbol(725).
    • 提供一种编码方法和解码方法,用于当通过无线因特网发送数据时有效地抑制数据的延迟,这导致对延迟敏感的实时多媒体服务的丢失。 输入符号被划分为预定数量的相同子块。 编码时间部分被分成与分割的子块的数量对应的相同的子时间部分。 通过使用具有对应于子块的大小的符号来生成初始输入符号。 通过使用初始输入符号来生成初始输出符号。 顺序地接收对应于每个子时间段编码的新子块的符号,然后将其相加到输入符号(710)。 删除对应于第一接收子块的符号来更新输入符号(720)。 与第一接收子块相关的输出符号被更新。 通过使用更新的输出符号生成分组(725)。
    • 46. 发明公开
    • 중요도에 따라 손실 복원율을 차별화하는 비균일 랩터 코딩방법
    • 优先级差分非均匀快速编码方法
    • KR1020080093924A
    • 2008-10-22
    • KR1020080035838
    • 2008-04-17
    • 삼성전자주식회사경희대학교 산학협력단
    • 정도영박태성오윤제서덕영박광훈박춘배
    • H04L1/00H03M13/11H03M13/00H04L12/56
    • H04L1/0042H03M13/3761H04L1/0045H04N19/169
    • A priority-differential non-uniform raptor coding method is provided to enable different objects to use independent parity codes by using a raptor code, which is included in a 3GPP(The 3 Generation Project Partnership) MBMS(Multimedia Broadcast and Multicast Service). An input symbol of the data to be encoded is received(1010). A priority of the data of the input symbol is checked(1020). Selection probabilities of respective symbols are set according to the priorities of the respective symbols, which are included in the input symbol(1030). The input symbol with the selection probabilities is encoded to generate an output symbol(1040). A packet is generated by using the output symbol(1050). An audio or voice stream has a higher priority than a video stream. An intra frame has a higher priority than a predictive frame. The predictive frame has a higher priority than a bi-directional frame. A header or a DC value in an intra frame has a higher priority than other data. The header and a motion vector value in the predictive frame have higher priorities than other data.
    • 提供了一种优先级差分非均匀激励器编码方法,以使不同的对象能够使用包含在3GPP(第3代项目伙伴关系)MBMS(Multimedia Broadcast and Multicast Service,多媒体广播和组播服务))中的激励器代码来使用独立的奇偶校验码。 接收要编码的数据的输入符号(1010)。 检查输入符号的数据的优先级(1020)。 根据包含在输入符号(1030)中的各符号的优先级,设定各符号的选择概率。 具有选择概率的输入符号被编码以产生输出符号(1040)。 通过使用输出符号(1050)生成分组。 音频或语音流的优先级高于视频流。 帧内帧优先级高于预测帧。 预测帧具有比双向帧更高的优先级。 帧内的报头或DC值比其他数据具有更高的优先级。 预测帧中的报头和运动矢量值的优先级高于其他数据。