Applying whip effect to magnetic tape exhibiting a tape...

Details Applying whip effect to magnetic tape exhibiting a tape... Applying whip effect to magnetic tape exhibiting a tape...

2011-07-26

2011-07-26

Heinz, Allen J (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

C360S090000, C242S334000

Reexamination Certificate

active

07986482

ABSTRACT:
As the result of a tape stick condition of magnetic tape with respect to a tape head, the supply reel and the take-up reel apply a base tension to the magnetic tape therebetween of substantially less than a full tension that occurs when the tape is running, and one reel varies the applied tension greater than and less than the base tension by an amount less than the base tension. The variation of the applied tension comprises first applying the greater tension and in succession, second, applying the less tension, comprising a whip effect. The whip effect may be in accordance with a sine wave. The varied tension is less than the base tension to maintain positive tension.

REFERENCES:
patent: 4523133 (1985-06-01), Messenger
patent: 5367471 (1994-11-01), Nguyen et al.

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