Bias control method and apparatus for magnetic recording

Details Bias control method and apparatus for magnetic recording Bias control method and apparatus for magnetic recording

1981-11-06

1984-06-12

Canney, Vincent I.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 25, G11B 545, G11B 1502

Patent

active

044545487

ABSTRACT:
An input signal and a variable amplitude AC bias signal are applied to a record head in a magnetic media recorder. The AC bias signal amplitude is controlled by a feedback circuit in response to the total active bias signal applied to the record head, the total active bias signal including the AC bias signal and the high frequency portion of the input signal.

REFERENCES:
patent: 4263624 (1981-04-01), Gundry

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