| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical disc apparatus which copes with a high rate of transmission. SOLUTION: A first transmission data signal indicated with change of current level is generated from a data signal indicated with change of voltage level, a second transmission data signal in the inverse phase from the first transmission data signal is generated, a first transmission data clock indicated with change of current level is generated from the data clock indicated with change of voltage level, a second transmission data clock in the inverse phase from the first transmission data clock is generated and these first and second transmission data signal and first and second transmission data clock are transmitted.
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