| 摘要 |
PURPOSE: An ECC(Error Correction Code) generation circuit and a method thereof are provided to perform an operation based on temporarily retained intermediate data, and to update the intermediate data whenever the operation is carried out, thereby calculating an ECC at higher speed. CONSTITUTION: A PO operation circuit(171) sequentially obtains symbols of each column when DVD block data is displayed in matrix type as symbols configured in 8 bits, and operates an outer parity. A PI operation circuit(172) sequentially obtains the symbols obtained in the PO operation circuit(171), and operates an inner parity of each row. The operated results of the PI operation circuit(172) are temporarily retained in a temporary retain memory(190).
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