Digital magnetic reproducing apparatus with variable tape speed

Details Digital magnetic reproducing apparatus with variable tape speed Digital magnetic reproducing apparatus with variable tape speed

1989-10-13

1991-10-15

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 102, 360 7716, G11B 5592

Patent

active

050579495

ABSTRACT:
A magnetic recording and reproducing apparatus having a construction in which a digital signal including index signals recorded on a magnetic tape is reproduced and rotary magnetic heads are movable. The digital signal is reproduced by digital signal reproducing means including the rotary magnetic heads. A particular index signal among the index signals is detected by index signal detecting means. Further, the timing for reproducing the particular index signal is detected by timing detecting means. The rotary magnetic heads are moved and deviated in the direction of the rotary shaft of the rotary cylinder by rotary magnetic head position deviating means. Tape speed detecting means compares a reproduction clock with a reference clock and outputs a tape speed signal. First rotary magnetic head position deviation control means forms a control input for the rotary magnetic head position deviating means on the basis of the tape speed signal. Second rotary magnetic head position deviation control means forms the control input for the rotary magnetic head position deviating means on the basis of an output signal of the timing detecting means.

REFERENCES:
patent: 4794472 (1988-12-01), Doyama
patent: 4914531 (1990-04-01), Kaaden et al.
patent: 4935827 (1990-06-01), Oldershaw et al.
patent: 4954902 (1990-09-01), Furuhata et al.
patent: 5008763 (1991-04-01), Horino

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