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    • 5. 发明申请
    • ENCODER, DECODER AND METHOD
    • 编码器,解码器和方法
    • WO2014131517A1
    • 2014-09-04
    • PCT/EP2014/000510
    • 2014-02-27
    • GURULOGIC MICROSYSTEM OY
    • KALEVO, Ossi
    • H03M7/30
    • H03M7/00H03M7/3068H03M7/3079
    • There is provided an encoder (10) for encoding input data (D1) including a sequence of numerical values to generate corresponding encoded output data (D2 or D3), characterized in that the encoder (10) includes a data processing arrangement for applying to the input data (D1) a form of differential and/or sum encoding to generate one or more corresponding encoded sequences, wherein the one or more corresponding encoded sequences are subjected to a wrap around a maximum value and/or a wrap around a minimum value, for generating the encoded output data (D2 or D3). Moreover, there is provided a decoder (20) for decoding encoded data (D2, D3 or D4) to generate corresponding decoded output data (D5), characterized in that the decoder (20) includes a data processing arrangement for processing one or more portions of the encoded data (D2, D3 or D4), wherein the data processing arrangement is operable to apply a form of differential and/or sum decoding to one or more corresponding encoded sequences of the one or more portions, wherein the one or more encoded sequences are subjected to a wrap around a maximum value and/or a wrap around a minimum value, for generating the decoded output data (D5). Furthermore, there is provided a codec (30) including at least one encoder (10) as aforementioned for encoding input data (D1) to generate corresponding encoded data (D2 or D3), and at least one decoder (20) as aforementioned for decoding the encoded data (D2, D3 or D4) to generate corresponding decoded data (D5). The codec (30) is capable of providing an enhanced degree of data compression in respect of the decoded output data (D5).
    • 提供了一种编码器(10),用于对包括一系列数值的输入数据(D1)进行编码以产生对应的编码输出数据(D2或D3),其特征在于编码器(10)包括一个数据处理装置 输入数据(D1)一种形式的差分和/或和编码以产生一个或多个对应的编码序列,其中所述一个或多个对应的编码序列经受绕最大值的缠绕和/或包围最小值, 用于生成编码的输出数据(D2或D3)。 此外,提供了一种用于对编码数据(D2,D3或D4)进行解码以产生对应的解码输出数据(D5)的解码器(20),其特征在于,解码器(20)包括用于处理一个或多个部分的数据处理装置 的编码数据(D2,D3或D4),其中所述数据处理装置可操作以将所述一个或多个部分的一个或多个相应编码序列应用差分和/或和解码的形式,其中所述一个或多个编码 使序列经受围绕最大值的缠绕和/或围绕最小值卷绕,以产生解码的输出数据(D5)。 此外,提供了一种编码解码器(30),包括如上所述的至少一个编码器(10),用于编码输入数据(D1)以产生相应的编码数据(D2或D3),以及如上所述的至少一个解码器(20),用于解码 编码数据(D2,D3或D4)以产生相应的解码数据(D5)。 编解码器(30)能够提供关于解码的输出数据(D5)的增强的数据压缩程度。
    • 7. 发明申请
    • EFFICIENT DATA COMPRESSION AND ANALYSIS AS A SERVICE
    • 有效的数据压缩和分析作为服务
    • WO2014190190A1
    • 2014-11-27
    • PCT/US2014/039209
    • 2014-05-22
    • AMAZON TECHNOLOGIES, INC.
    • GUPTA, Anurag Windlass
    • G06F15/16
    • G06F17/30153G06N99/005H03M7/30H03M7/3079H03M7/6088
    • Data may be efficiently analyzed and compressed as part of a data compression service. A data compression request may be received from a client indicating data to be compressed. An analysis of the data or metadata associated with the data may be performed. In at least some embodiments, this analysis may be a rules-based analysis. Some embodiments may employ one or more machine learning techniques to historical compression data to update the rules-based analysis. One or more compression techniques may be selected out of a plurality of compression techniques to be applied to the data. Data compression candidates may then be generated according to the selected compression techniques. In some embodiments, a compression service restriction may be enforced. One of the data compression candidates may be selected and sent in a response.
    • 数据可以作为数据压缩服务的一部分被有效地分析和压缩。 可以从客户端接收指示要压缩的数据的数据压缩请求。 可以执行与数据相关联的数据或元数据的分析。 在至少一些实施例中,该分析可以是基于规则的分析。 一些实施例可以对历史压缩数据采用一种或多种机器学习技术来更新基于规则的分析。 可以从应用于数据的多种压缩技术中选择一种或多种压缩技术。 然后可以根据选择的压缩技术生成数据压缩候选。 在一些实施例中,可以强制执行压缩服务限制。 可以在响应中选择并发送其中一个数据压缩候选。