| 摘要 |
PROBLEM TO BE SOLVED: To quickly and accurately access an optional address. SOLUTION: In a step S1, address information comprizing a synchronizing signal, address data, and an address data error correction code is generated. In a step S2, the address information is multiplied by a carrier signal to generate a phase modulation signal. In a step S3, a groove spirally wobbled in accordance with the phase modulation signal is formed in an optical disk 5.
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