| 摘要 |
<p>In an information reproducing apparatus having a tracking servo control loop for causing an information reading unit including means for detecting a tracking error signal for tracking an information bearing track on a disc, to track the information bearing track in accordance with the tracking error signal to reproduce information in accordance with an information signal read by the information reading unit, a circuit (1, 2, 3, 4, 5, 10, 17) for extracting a discrimination signal for discriminating a negative feedback region of the tracking error signal is provided so that a tracking servo control loop is closed (11) in the negative feedback region. </p> |
