Dynamic magnetic information storage or retrieval – Record editing
Patent
1984-04-12
1988-02-09
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Record editing
360 30, 360 77, 360 20, G11B 2110, G11B 5592, H04N 5782
Patent
active
047244941
ABSTRACT:
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.
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Cardillo Raymond F.
Nguyen Hoa T.
Victor Company of Japan , Limited
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