发明名称 |
KEY EQUATION SOLVER CIRCUIT AND REED-SOLOMON DECODER COMPRISING SAME |
摘要 |
A Reed-Solomon decoder in which the coefficients of an error locator polynomial ( sigma u) are calculated on the basis of the values of 2t syndromes (Si) is disclosed. A calculation cell (64u) provided for each coefficient comprises two multiplier circuits, two registers for storing a coefficient of the locator polynomial and the coefficient of a related intermediate polynomial, and means for updating the coefficient values in the respective registers. The key equation is solved in 2t iterations that each comprise a first phase for calculating a prediction deviation ( DELTA k) and a second phase for updating the coefficients.
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申请公布号 |
WO9727675(A1) |
申请公布日期 |
1997.07.31 |
申请号 |
WO1997FR00110 |
申请日期 |
1997.01.21 |
申请人 |
MATRA COMMUNICATION;MA, JIAN-JUN;MARCZAK, JEAN-MARC |
发明人 |
MA, JIAN-JUN;MARCZAK, JEAN-MARC |
分类号 |
H03M13/00;H03M13/15;(IPC1-7):H03M13/00 |
主分类号 |
H03M13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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