Method and apparatus for optimizing auto gain control of...

Details Method and apparatus for optimizing auto gain control of... Method and apparatus for optimizing auto gain control of...

2005-11-08

2005-11-08

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S067000, C360S068000, C360S055000

Reexamination Certificate

active

06963459

ABSTRACT:
There is disclosed a disk drive which can appropriately execute a gain control of an AGC amplifier included in a read channel for each zone on a disk. A CPU refers to table information stored in a memory, and reads initial gain data corresponding to the zone during switching of the zone as a read object. The CPU sets the read initial gain data into the AGC amplifier.

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Japanese Office Action, dated May 25, 2004 for Patent Application No. 2001-230202.

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