| 摘要 |
In equipment for transmitting data and a method for transmitting data according to the invention, main and subordinate modulated data to be used for recording are provided in time division, and a dc level is calculated in advance. The dc level is suppressed on the basis of the calculation result of the dc level, and a modulating data is thereby generated with the dc level suppressed. Thus, the equipment and method according to the invention can be applied to, for example, an optical disc drive and the total construction can be simplified. The circuit blocks for transmission systems can be used in common with different systems.
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