Video signal, speed-change reproducing system

摘要

A video signal, speed-change reproducing system uses a tape on which a video signal has been recorded. The recorded tracks are disposed contiguously and obliquely relative to the longitudinal tape direction. The tracks are recorded and formed by a plurality of rotating heads having gaps of mutually different azimuth angles. The tape travels at a selected speed V represented by the equation <IMAGE> wherein Vo is the tape speed for normal reproduction (and recording), and n is a positive integer. For reproduction, a plurality of rotating reproducing heads have gaps of mutually different azimuth angles which are the same as the azimuth angles used at the recording time. These heads successively scan the tracks of the tape to reproduce the recorded video signal. The rotating reproducing head is controlled to rotate in such a phase relation that each time instant when the level of the reproduced signal becomes a minimum value is within or in the vicinity of a vertical blanking period.