Method and apparatus for automatic gain control amplifier adjust

Details Method and apparatus for automatic gain control amplifier adjust Method and apparatus for automatic gain control amplifier adjust

1992-01-29

1994-12-13

Hajec, Donald

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 27, 360 46, 369 48, G11B 502, G11B 509, G11B 1552, G11B 2012

Patent

active

053734033

ABSTRACT:
In a sector servo type hard-disk apparatus, in the case where a recording medium is not manufacture-formatted, gain control data is written/read in/from a CSS zone of the recording medium after power is turned on and before the first seek is executed. The write/read of the gain control data in/from the CSS zone is also executed in accordance with a peak level of an output signal from an AGC amplifier.

REFERENCES:
patent: 4933783 (1990-06-01), Yasui
patent: 5140477 (1992-08-01), Hashimoto
patent: 5144504 (1992-09-01), Kitazawa

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