利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.01 秒)

    ENCODING DEVICE AND ENCODING METHOD
    3.
    发明公开
    ENCODING DEVICE AND ENCODING METHOD 有权
    SKALIERBARE AUDIOKODIERVORRICHTUNG公司SKALIERBARES AUDIOKODIERVERFAHREN

    公开(公告)号：EP2733699A1

    公开(公告)日：2014-05-21

    申请号：EP12837789.2

    申请日：2012-09-21

    申请人： Panasonic Corporation

    发明人： DAIMOU, Katsunori ,  MORII, Toshiyuki

    IPC分类号： G10L19/16 ,  G10L19/12 ,  H03M7/30

    CPC分类号： G10L19/02 ,  G10L19/0212 ,  G10L19/24 ,  H03M7/3073

    摘要： This encoding device (100) is provided with: a CELP encoding unit (102) that decodes CELP encoded data resulting from CELP encoding an input signal, generating a CELP decoded signal; a transform encoding unit (106) that generates a decoded signal spectrum by decoding transform encoded data resulting from using the spectrum of the input signal and the suppression spectrum of suppressing using a first suppression factor to transform encode the amplitude of the spectrum of the CELP decoded signal, and that outputs an index of the transform encoded frequency component; a pulse index recording unit (107) that forms and records an array using the index; and a CELP component suppression unit (109) that uses a second suppression factor and the array to suppress the amplitude of the spectrum resulting from adding the decoded signal spectrum and the suppression spectrum.

    摘要翻译： 该编码装置（100）具备：CELP编码部（102），对从输入信号进行CELP编码得到的CELP编码数据进行解码，生成CELP解码信号; 变换编码单元（106），通过解码使用输入信号的频谱得到的编码数据和使用第一抑制因子抑制的抑制频谱来解码解码信号频谱，以对CELP解码的频谱的振幅进行编码 信号，并且输出变换编码频率分量的索引; 脉冲索引记录单元，用于使用所述索引形成和记录阵列; 以及使用第二抑制因子的CELP分量抑制单元（109），并且所述阵列抑制由所述解码信号频谱和抑制频谱相加而产生的频谱的振幅。

    METHOD AND APPARATUS FOR IMPROVED SIGNIFICANCE FLAG CODING USING SIMPLE LOCAL PREDICTOR
    5.
    发明公开
    METHOD AND APPARATUS FOR IMPROVED SIGNIFICANCE FLAG CODING USING SIMPLE LOCAL PREDICTOR 审中-公开
    使用简单局部预测器改进重要标志编码的方法和设备

    公开(公告)号：EP3264763A1

    公开(公告)日：2018-01-03

    申请号：EP16305799.5

    申请日：2016-06-29

    申请人： Thomson Licensing

    发明人： LASSERRE, Sebastien ,  ANDRIVON, Pierre ,  BORDES, Philippe

    IPC分类号： H04N19/13 ,  H04N19/18 ,  H03M7/40

    CPC分类号： H04N19/13 ,  H03M7/3073 ,  H03M7/3079 ,  H03M7/40 ,  H03M7/4018 ,  H04N19/18

    摘要： Significance flags in advanced video compression systems are coded using contexts adaptive to the last N significance flags coded taken in a scanning order. One embodiment uses the last N significance flags in scanning order as a predictor to determine which of a plurality of sets of significance flag contexts to use for coding subsequent significance flags. A second embodiment uses the last N significance flags in scanning order as a predictor in order to modulate the probability value associated with significance flag contexts that are used to code significance flags for future coding.

    摘要翻译： 高级视频压缩系统中的重要性标志使用适应于以扫描顺序编码的最后N个重要性标志的上下文进行编码。 一个实施例使用扫描顺序中的最后N个重要性标志作为预测器来确定用于编码后续重要性标志的多个重要性标志上下文中的哪一个。 第二实施例使用扫描顺序中的最后N个有效性标志作为预测器，以便调制与重要性标志上下文相关联的概率值，该重要性标志上下文用于编码用于未来编码的重要性标志。

    BACKHAUL SIGNAL COMPRESSION THROUGH SPATIAL-TEMPORAL LINEAR PREDICTION
    8.
    发明公开
    BACKHAUL SIGNAL COMPRESSION THROUGH SPATIAL-TEMPORAL LINEAR PREDICTION 有权
    反叛信使德拉奇

    公开(公告)号：EP2666243A1

    公开(公告)日：2013-11-27

    申请号：EP12703346.2

    申请日：2012-01-20

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： HUI, Dennis

    IPC分类号： H04B7/02 ,  H03M7/30

    CPC分类号： H04B7/024 ,  H03M7/3073 ,  H03M7/3075 ,  H03M7/3082 ,  H04B7/0413 ,  H04W28/04 ,  H04W28/06 ,  H04W88/085

    摘要： The technology in this application compresses multi-antenna complex-valued signals by exploiting both a spatial and a temporal correlation of the signals to remove redundancy within the complex-valued signals and substantially reduce the capacity requirement of backhaul links. At a receiver, the compressed signal is received, and a decompressor decompresses the received signal over space and over time to reconstruct the multiple antenna stream.

    摘要翻译： 该应用中的技术通过利用信号的空间和时间相关性来消除多天线复值信号，以消除复值信号内的冗余，并大大减少回程链路的容量需求。 在接收机处，接收压缩信号，并且解压缩器通过空间和时间来对接收的信号进行解压缩以重构多天线流。

    A METHOD AND A DEVICE FOR CODING DATA SEQUENCES
    9.
    发明公开
    A METHOD AND A DEVICE FOR CODING DATA SEQUENCES 失效
    方法和装置的代码数据的影响

    公开(公告)号：EP1016221A1

    公开(公告)日：2000-07-05

    申请号：EP98917870.2

    申请日：1998-04-08

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： PASSAGGIO, Filippo ,  EINARSSON, Torbjörn ,  THORELL, Per

    IPC分类号： H03M7/36

    CPC分类号： H03M7/3066 ,  H03M7/3059 ,  H03M7/3073 ,  H03M7/3079 ,  H04N19/105 ,  H04N19/164 ,  H04N19/50

    摘要： In a method and a device for tranforming a stream of digital numbers, the correlation between successive numbers is utilized in order to obtain a new stream having a very low correlation between the numbers, whereby the sequence of numbers can be coded much more efficiently from a compression point of view. The numbers are for this purpose coded with the difference between a predicted number (s'(i)) and the actual number (s(i)) taking into account that the sequence does not need to be possible to decode in reverse order. The non-reversible codes can also be applied in lossy data compression schemes. Such schemes can change in accordance with the currently available bandwidth in order to obtain a graceful degradation and optimal bandwidth usage when the compressed data stream is transmitted over a channel having a time varying bandwidth. A general method and device for reversible coding are also provided.