Apparatus for calibrating tape drive read system

Details Apparatus for calibrating tape drive read system Apparatus for calibrating tape drive read system

1985-10-01

1987-08-18

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 31, G11B 502, G11B 2736

Patent

active

046881131

ABSTRACT:
An apparatus for calibrating the gain in a tape drive read system, so that with a calibrated signal source, the output of the read system will be a clean, square wave, digitized signal. Means are provided for taking the output of a read head, reading signals from a tape, applying a controlled attenuation to the signals, such that the output of the read system will be of a correct amplitude output. A sensor assembly including a comparator, is used to monitor the output voltage from the read system, and to provide appropriate signals to the attenuator until the analog output voltage of the read signal is correct.

REFERENCES:
patent: 3660821 (1972-05-01), Weber et al.
patent: 3879674 (1975-04-01), Dragon
patent: 4274117 (1981-06-01), Tomira
patent: 4346411 (1982-08-01), Bohler et al.

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