System for the sub-micron positioning of a read/write transducer

Details System for the sub-micron positioning of a read/write transducer System for the sub-micron positioning of a read/write transducer

1992-09-18

1994-10-25

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360109, 360 7703, C11B 5596

Patent

active

053594746

ABSTRACT:
A system for the sub-micron positioning of a read/write transducer (28) of a disk drive whereby motion of the transducer, fixed to a transducer holder (30), is caused by a flexing beam (26) deflected by an input spring (32) in turn deflected by an input actuator (34). Motion of the transducer is significantly less than the deflection of the input spring, significantly increasing system resolution while decreasing positioning errors and inaccuracies. The geometry and materials of the flexing beam (26) are such as to promote bending only in a preferred plane parallel to the disk (14) and keep mechanical vibration resonant frequencies higher than the disk rotational frequency.

REFERENCES:
patent: 3924268 (1975-12-01), McIntosh et al.
patent: 4816942 (1989-03-01), Tanishima et al.
patent: 4858040 (1989-08-01), Hazebrouch
patent: 4959740 (1990-09-01), Nishikawa
patent: 5062019 (1991-10-01), Morisawa
patent: 5084791 (1992-01-01), Thanos et al.
patent: 5124867 (1992-06-01), Kitahori et al.

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