RECORDING AND/OR REPRODUCING APPARATUS WITH TRACKING SERVO-MECHANISM RESPONSIVE TO FM CROSSTALK COMPONENTS

摘要

In a recording apparatus frequency modulators (25-28) are provided for carriers having different frequencies with an information signal. The different frequency carriers are sequentially combined by a switch (12) and applied to a recording head in response to the head being shifted from one track to the next to record each of the carriers on a different track, so that there is a difference in frequency between carriers recorded on adjacent tracks. During playback, the frequency-modulated carriers are sequentially reproduced and separated by band-pass filters (25-24) into individual carriers, frequency-demodulated respectively by demodulators (29-32) and sequentially combined by a switch (33) to form the original information signal. Tracking control circuit (100) is provided to control the lateral position of the transducer head in response to the carriers which are derived from tracks on opposite sides of the track being scanned.