发明名称 ENCODING AND DECODING OF REED-SOLOMON CODES USING LOOK-UP TABLES FOR GALOIS FIELD MULTIPLICATIONS
摘要 Methods and apparatus are provided for encoding data. The method includes (a) providing a first table of first component values multiplied by code generator coefficients and a second table of second component values multiplied by the code generator coefficients, (b) determining a Galois field element based on a message symbol and a high order remainder symbol, (c) separating the Galois field element into first and second components, (d) using the first component and a generator coefficient index to access one or more first table values in the first table and using the second component and the generator coefficient index to access one or more second table values in the second table, (e) determining a current remainder symbol based on first and second table values having equal generator coefficient indices, and a previous remainder symbol, (f) performing step (e) for each generator coefficient of the code generator to provide a set of remainder symbols, and (g) performing steps (b)-(f) for each message symbol in a codeword to provide a set of final remainder symbols which constitute check symbols to be transmitted with the message symbols of the codeword.
申请公布号 KR20060125837(A) 申请公布日期 2006.12.06
申请号 KR20067013905 申请日期 2006.07.11
申请人 ANALOG DEVICES, INC. 发明人 LIBEROL BORIS;LEE, YOON YUNG
分类号 H03M13/15;H03M13/00 主分类号 H03M13/15
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