Slow-motion reproducing system in an apparatus for reproducing rotary

Abstract

Slow-motion reproducing system is applied to an apparatus for reproducing video signals from a rotary recording medium on which the video signals of a plurality of fields each are recorded along a spiral track for every interval corresponding to one revolution of the medium. This system comprises a reproducing element for tracing along the track of the rotary recording medium and reproducing the signals recorded therealong, a device for causing the reproducing element to shift and skip to an adjacent track turn in response to skip pulses applied thereto, a circuit for generating skip pulses corresponding to modes in which slow-motion reproduction differing from normal reproduction is carried out every period of revolution of the rotary recording medium, the skip pulses being thus generated with timing corresponding to the vertical blanking period positions of the recorded video signals, and for supplying the skip pulses to the skip device, a circuit for demodulating the reproduced signal extracted from the reproducing element, first and second field memories respectively supplied with demodulated video signals extracted from the demodulating circuit, and an operation control circuit for carrying out operation control of the operations of recording of the demodulated video signals of the recorded video signals. Slow-motion reproduced video signals are produced as outputs alternately from the two field memories.