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    • 6. 发明专利
    • System and method for sequence detection by data processing
    • 通过数据处理进行序列检测的系统和方法
    • JP2012038409A
    • 2012-02-23
    • JP2011106028
    • 2011-05-11
    • Lsi Corpエルエスアイ コーポレーション
    • VISWANAS ANANPEJU
    • G11B20/18G11B20/10H03M13/39
    • G11B20/10009G11B20/10055G11B20/10277G11B20/10296H03M13/4161H04L25/03184
    • PROBLEM TO BE SOLVED: To provide an advanced system and method for performing data sequence detection.SOLUTION: The data sequence detection includes: receiving a series of data samples by a detector circuit; multiplying a portion of the series of data samples by a first correlator value corresponding to first binary transition to create a first value; multiplying a portion of the series of data samples by a second correlator value corresponding to second binary transition to create a second value; adding the first value to a previous state value to create a first intermediate value; adding the second value to the previous state value to create a second intermediate value; and selecting the intermediate value which is larger between the first intermediate value or the second intermediate value to create a persistent intermediate value.
    • 要解决的问题:提供用于执行数据序列检测的高级系统和方法。 解决方案:数据序列检测包括:通过检测器电路接收一系列数据样本; 将所述一系列数据样本的一部分乘以对应于第一二进制转换的第一相关器值以产生第一值; 将所述一系列数据样本的一部分乘以对应于第二二进制转换的第二相关器值以产生第二值; 将第一值添加到先前状态值以创建第一中间值; 将第二值添加到先前状态值以创建第二中间值; 以及选择在第一中间值或第二中间值之间较大的中间值以创建持久中间值。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Viterbi decoder
    • VITERBI解码器
    • JP2005045727A
    • 2005-02-17
    • JP2003280274
    • 2003-07-25
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • TAKAGI NOBUHIRO
    • G06F11/10H03M13/41H04L1/00
    • H03M13/6337H03M13/23H03M13/41H03M13/4107H03M13/413H03M13/4161H03M13/4169H03M13/4192H03M13/6502H03M13/6516H03M13/6561H04L1/0054
    • PROBLEM TO BE SOLVED: To provide a Viterbi decoder which is capable of dealing with a plurality of kinds of restrict lengths and the number of coefficients for an arbitrary estimate transmission line and can be composed of dedicated hardware of a small circuit scale.
      SOLUTION: Branch metrics of all paths from the state at a previous time to the state at the present time are operated, a most tolerant path is selected out of the paths to the respective states by a branch metric 101a and a path metric 103a, and a path select signal 102a and a path metric 102b are outputted. A path metric storage device 103 outputs the path metric 103a to be inputted to an ACS arithmetic unit 102 when performing the ACS arithmetic at the next time. A temporary path select signal storage device 104 stores the path select signals 102 as many as (n) states, outputs the path select signals 104a as many as (m) states ((m)≤(n)), and changes the input bit position in accordance with the encoding restrict length for a system to which Viterbi decoding is applied, or the estimated number of coefficients for the estimate transmission line.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供能够处理多种限制长度的维特比解码器和用于任意估计传输线的系数数,并且可以由小电路规模的专用硬件组成。 解决方案:从前一时刻的状态到当前状态的所有路径的分支度量被操作,通过分支度量101a和路径度量来选择从各自状态的路径中的最宽容路径 103a,并且输出路径选择信号102a和路径量度102b。 路径度量存储装置103在下一次执行ACS运算时输出要输入到ACS运算单元102的路径量度103a。 临时路径选择信号存储装置104存储多达(n)个状态的路径选择信号102,输出多达(m)个状态((m)≤(n))的路径选择信号104a,并将输入位 根据应用维特比解码的系统的编码限制长度或估计传输线的系数的估计数量的位置。 版权所有(C)2005,JPO&NCIPI