Magnetic head with IC thereon with recording frequency...

Details Magnetic head with IC thereon with recording frequency... Magnetic head with IC thereon with recording frequency...

2005-06-28

2005-06-28

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S075000, C360S066000

Reexamination Certificate

active

06912102

ABSTRACT:
A magnetic disk device having a magnetic disk for recording information, a rotary mechanism for rotating the magnetic disk, a magnetic head unit for recording information on the rotating magnetic disk, a slider having mounted thereon the magnetic head unit and flying over the rotating magnetic disk, a magnetic head supporting mechanism for supporting the slider, and a positioning mechanism for setting the magnetic head unit at a predetermined radial position. The magnetic head supporting mechanism has mounted thereon an integrated circuit (IC) for amplifying an information write/read signal of the magnetic head unit, and a control circuit is connected to the IC. A recording frequency is controlled according to the radial position of the IC on the magnetic disk by the control circuit.

REFERENCES:
patent: 4638383 (1987-01-01), McGinlay et al.
patent: 6339519 (2002-01-01), Nomura et al.
patent: 6522502 (2003-02-01), Shiraishi et al.
patent: 6618225 (2003-09-01), Shimizu et al.
patent: 2001/0000445 (2001-04-01), Shiroishi
patent: 2003/0053255 (2003-03-01), Shimizu et al.
patent: 11-195215 (1999-07-01), None
patent: 11-296803 (1999-10-01), None

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