发明名称 Polynominal-set deriving apparatus and method.
摘要 <p>A set of minimal polynomials for generating a multidimensional array for decoding algebraic geometric codes is derived at a high speed. In order to obtain a set of minimal polynomials F for generating a given multidimensional array, when sequentially updating a set of polynomials F, dfn&lt;(i)&gt; are not directly calculated, and a newly introduced set of polynomials B and the set of polynomials F are updated using the highest-degree coefficient di of polynomials which belong to the set of polynomials B. An array memory for storing a given multidimensional array u, and first and second polynomial memories for storing the set of polynomials F to be obtained and a set of auxiliary polynomials G, respectively, are provided. In the calculation of polynomials f&lt;(k)&gt; and dfn+1&lt;(k)&gt; , accessing operations for respective memories and accessed addresses are controlled in parallel depending on the degrees of polynomials f&lt;(k)&gt;. &lt;IMAGE&gt;</p>
申请公布号 EP0611054(A2) 申请公布日期 1994.08.17
申请号 EP19940300473 申请日期 1994.01.21
申请人 CANON KABUSHIKI KAISHA 发明人 IWAMURA, KEIICHI, C/O CANON KABUSHIKI KAISHA
分类号 H03M13/03;H03M13/15;(IPC1-7):H03M13/00 主分类号 H03M13/03
代理机构 代理人
主权项
地址