| 摘要 |
<p>PURPOSE:To provide a means capable of enhancing a sampling rate to detect tracking errors, embodying sophisticated high precision tracking control and further automatizing their performances. CONSTITUTION:During recording time, an information signal including synchronizing information to be recorded is time-axis-converted and recorded in conformity with the rotation of a magnetic head. During playback time, the synchronizing information conforms to the frequency while its start timing uses an pulse determined by a playback CTL signal and tracking control is carried out so that the differential phase may become a specified value. The pulse is in conformity with a specified output timing of the synchronizing information when the magnetic head scans the center of a recording track.</p> |
