| 摘要 |
<p>PURPOSE:To promote a signal level of an superimposing pilot tone by making a specific frequency suppressing state of a specific section out of signals to be recorded on a track. CONSTITUTION:The track is composed of in order from its lead a preamble 1, a 1st burst 2 consisting of N1 number of synchronizing blocks, a gap 3, a 2nd burst 4 consisting of N2 number of synchronizing blocks and finally a postamble 5. Then, since a DC and a low spectrum of a data signal can be lowered in the vicinity of a sample point of a cross talk signal level of a pilot tone, even when the superimposing pilot tone signal level is lowered, the cross talk signal level so far as required can be obtained. Therefore, the accurate tracking is feasible.</p> |
