| 摘要 |
PURPOSE:To make reproduction with high accuracy, without crosstalk, by recording and reproducing a pilot signal with a main signal recording rotating head and controlling a relative position of the rotating head to a track so the head can accurately scan a track with the pilot signal. CONSTITUTION:Rotating heads 1W and 2W for recording of a main signal and rotating heads 1R and 2R for reproduction have different azimuth angle, and the main signal recording heads 1W and 2W sequentially record four different pilot signals f1, f2, f3 and f4 on tracks 1A, 1B, 2A, 2B... at each track. At reproduction, the main signal is reproduced with the reproduction head with the same azimuth angle as the recorded tracks, and the pilot signals on the left and right tracks are reproduced with the main signal recording heads with the same azimuth angle as at recording to the left and right tracks. This pilot signal controls the relative position between the rotating heads and the tracks to obtain just tracking. |
