| 摘要 |
<p>An optimum recording and/or reproducing apparatus for optimally performing recording and/or reproduction according to the change of data recording and reproducing environments, to record digital data on a predetermined recording medium by using a recording head and reproducing the recorded data by using the reproducing head to be output, includes a recording apparatus comprising a memory 50, a modulator 20, an envelope detector 60 and a clock generator 65, whereby the rate of reading out the data from the memory 50 and the modulating clock signal applied to the modulator 20 are determined according to the clock signal; and a reproducing apparatus comprising a detector 75, a phase-locked loop (PLL) circuit 80, a demodulator 30 and a memory 50. <IMAGE></p> |
