Device for preventing sticking of a magnetic tape to a rotating

Details Device for preventing sticking of a magnetic tape to a rotating Device for preventing sticking of a magnetic tape to a rotating

1988-08-22

1990-08-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 85, G11B 1500, G11B 552

Patent

active

049511610

ABSTRACT:
In a magnetic recording/reproducing apparatus of the helical scanning type the rotation speed of the reels in operation is detected and it is judged to be abnormal, if the rotation speed exceeds the upper limit thereof. This upper limit can be varied, depending on various operating modes. When an abnormality is detected, the brake of the reels is driven and the rotation of the drum is stopped. After the tape has been stopped, the tape is unloaded while rotating the supply side reel and the take-up side reel, the drum remaining not rotated.

REFERENCES:
patent: 4636887 (1987-01-01), Kato et al.
patent: 4686591 (1987-08-01), Kobayashi et al.
patent: 4758912 (1988-07-01), Yoshihiro et al.

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