| 摘要 |
<p>An apparatus for slow-motion reproduction of a video signal having successive fields thereof, along with respective pilot signals, recorded in successive parallel tracks extending obliquely on a magnetic tape, with the pilot signals recorded in a predetermined number of the tracks constituting a group thereof having respective different frequencies in an order that is repeated cyclically for each said group of tracks on the tape, comprises a circuit for producing a tracking error signal based on the pilot signals reproduced from the magnetic tape, a driving circuit for causing a capstan motor to effect intermittent transport of the tape between a first still- picture reproducing state in which a field segment of the video signal is repeatedly reproduced from a preceding one of alternate oblique tracks to a second still-picture reproducing state in which another field segment of the video signal is repeatedly reproduced from the next or succeeding one of the alternate oblique tracks, and a control circuit for controlling the driving circuit so that the transportation of the magnetic tape is responsive to the tracking error signal obtained in the first still-picture reproducing state, that is, prior to transportation of the magnetic tape, with the result that deviation of a scanning path of rotary magnetic heads in relation to an oblique track from which a field segment of video signal is to be repeatedly reproduced in the second still-picture reproducing state is reliably minimized.</p> |
