Data deletion device for magnetic tapes

Details Data deletion device for magnetic tapes Data deletion device for magnetic tapes

1980-07-10

1982-05-18

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 746, G11B 547, G11B 1548

Patent

active

043308007

ABSTRACT:
A data deletion device has a take-up reel and a supply reel each provided with a separate drive. The supply reel is for carrying tape to be cleared. A guiding device for the tape is provided, and a device for detecting a reflector marking is provided in the tape path between the supply reel and the take-up reel. The said latter device, upon detecting a reflector marking of the tape, sets a device by means of which the coil is energized at the earliest upon detection of the reflector marking, and a switching device is provided by means of which the coil is switched off at the earliest after one further revolution of the reel carrying the tape to be deleted.

REFERENCES:
patent: 2756278 (1956-07-01), Goshwa
patent: 2826642 (1958-03-01), Lyon et al.
patent: 2848660 (1958-08-01), Boyers

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