Method and apparatus for reducing vibration on a disk spindle mo

Details Method and apparatus for reducing vibration on a disk spindle mo Method and apparatus for reducing vibration on a disk spindle mo

1997-04-04

1999-08-10

Young, W. R.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 7706, 369 50, G11B 1920

Patent

active

059367873

ABSTRACT:
A method and an apparatus for recording and reproducing data on a disk recording medium, capable of effectively reducing the unnecessary vibration of the spindle motor and the noises associated with it, and improving the tracking characteristic of a head with respect to the vibration of the spindle motor. The apparatus includes a head for recording and producing data with respect to a disk recording medium; a rotational driving mechanism including a spindle motor for driving the disk recording medium in rotation according to a driving waveform; and a waveform correction unit for detecting a vibration of the rotational driving mechanism and correcting the driving waveform supplied to the rotational driving mechanism according to the detected vibration. The apparatus can further includes a head driving mechanism for driving the head in a radial direction of the disk recording medium according to a driving signal; and a driving signal correction unit for correcting the driving signal supplied to the head driving mechanism according to the vibration of the rotational driving mechanism.

REFERENCES:
patent: 4876491 (1989-10-01), Squires et al.
patent: 5202616 (1993-04-01), Peters et al.
patent: 5235264 (1993-08-01), Kaneda et al.
patent: 5258695 (1993-11-01), Utenick et al.
patent: 5296790 (1994-03-01), Fincher
patent: 5319290 (1994-06-01), Yoshino et al.
patent: 5412809 (1995-05-01), Tam et al.

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