Quick-motion reproducing system in a rotary recording medium reproducing apparatus

摘要

A quick-motion reproducing system is applied to a reproducing apparatus for reproducing a rotary recording medium by a reproducing element. The rotary recording medium is recorded with a video signal on a spiral track, and further recorded with a predetermined reference signal. The predetermined reference signal is recorded within intervals corresponding to vertical synchronizing signals within vertical blanking periods of the recorded video signal, for each track turn of the spiral track. The quick-motion reproducing system comprises a kick pulse generating circuit for generating a kick pulse only within a predetermined shifting interval including the vertical blanking period of the recorded video signal and intervals in the vicinity of this vertical blanking period, and a shifting circuit applied with the generated kick pulse, for successively shifting the reproducing element to adjacent tracks, only within the above predetermined shifting interval.