Apparatus for recording/reproducing a digital signal at variable

Details Apparatus for recording/reproducing a digital signal at variable Apparatus for recording/reproducing a digital signal at variable

1988-02-19

1990-07-17

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 70, 360 7305, 360 75, G11B 15473

Patent

active

049424874

ABSTRACT:
A digital signal recording/reproducing apparatus for enabling recording/reproduction at variable speeds including normal speed, and at least one of N-times normal speed and 1/N-times normal speed while maintaining the reproducing frequency constant so as to not require switching of analog circuits. At the time of reproduction at normal speed, N-times normal speed or 1/N-times normal speed, the feed speed of the magnetic tape and the timing of picking up of a reproducing signal from the magnetic tape are varied while the speed of revolution of a cylinder of a rotary head is maintained constant so that the timing of detection of pilot signals for generating a tracking error signal is varied to cope with difference in track scanning conditions in recording and reproducing modes.

REFERENCES:
patent: 4484236 (1984-11-01), Wilkinson

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