| 摘要 |
PROBLEM TO BE SOLVED: To select an algorithm A or an algorithm B prepared for the purpose of controlling DSV in the case of controlling DSV of a code word string. SOLUTION: When p-bit input data words Ds is converted to at least one code word Cd consisting of q-bits (q>p) by using a plurality of coding tables and the at least one code word is connected with a code word string coded before this in the state of meeting a run-length-limiting rule to generate at least one code word string, in the case of selecting a code word minimizing the absolute value of DSV to the at least one code word string by a DSV control part 19, the algorithm A and the algorithm B are prepared for the purpose of controlling DSV in the DSV control part and an algorithm selection signal As or Bs are inputted from outside and/or a peripheral circuit to a DSV control part to select a desired one of the algorithms A and B with the algorithm selection signal. COPYRIGHT: (C)2003,JPO
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