| 摘要 |
<P>PROBLEM TO BE SOLVED: To read a recording signal recorded in a recording medium in accordance with higher speed of reproduction line velocity. <P>SOLUTION: A data recording/reproducing system 1 reads information about the recording track of a recording medium 3 by irradiation of periodic light scanned at the prescribed scanning speed on the basis of a prescribed reproduction clock, and includes a computer 13 for generating the periodic light by modulating light by a dive signal wherein a signal synchronized with the frequency of the reproduction clock is superposed, a DSP (digital signal processor) 49, and an LD driver 17. <P>COPYRIGHT: (C)2009,JPO&INPIT |
