| 摘要 |
<p>A tracking system for a rotary magnetic recording medium (10) includes a magnetic head (26) for sensing signals on a plurality of tracks formed on the recording medium such that a beginning and an end of recording align with each other, a head feeding unit (28, 30, 50) for transporting the magnetic head to a position where desired one of the tracks is located, and a control unit (100) for controlling the head feeding unit to effect tracking. The control unit (100) includes an operational unit (46, 104, 106, 108, 110) for sampling a signal sensed by the head in response to a rotation of the recording medium at a plurality of sampling points, and adds the sampled values with predetermined weights. Based on a result of the weighted addition, the control unit (100) performs a tracking control.</p> |
