| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of a maldetection of flaw of an optical disk device when the magnification speed is slow. SOLUTION: A switching signal from a DSP 3 is decoded into a selection signal. The selection signal is generated in accordance with the magnification speed number of a reproducing. The smaller the magnification speed, the larger the selected resistor and detected current becomes smaller. Thus, as a result, an apparent time constant becomes large and an excessive reduction of RF signals is prevented.
|
