| 摘要 |
<p>PURPOSE:To detect an accurate program-search and to record a start ID by extracting information of a sub code Q channel included in a digital out signal and using a Q channel data so as to detect the head of the music. CONSTITUTION:When a digital output signal from a CD is inputted via an input terminal DAI, a sub code Q extraction section 11 extracts a sub code Q channel data included in the digital output signal and inputs it to a music head detection section 12. The music head detection section 12 detects the music head based on prescribed information included in the Q channel data and outputs a start ID recording enable signal IDR to a signal processing section 14. The signal processing section 14 upon the input of the start ID recording enable signal IDR outputs the start ID signal together with the digital audio signal for a prescribed time to write them on a magnetic tape 17 by recording and reproducing heads 16a, 16b. Thus, the music head is detected accurately without using an audio signal level and a blank time to record the start ID.</p> |
