Method and apparatus for aligning computer disk drives

Details Method and apparatus for aligning computer disk drives Method and apparatus for aligning computer disk drives

1986-07-10

1988-06-28

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

360 25, 360 77, 360 67, G11B 2736, G11B 556

Patent

active

047543434

ABSTRACT:
A low cost easy use alignment device is used to perform radial alignment of a read/write head in a floppy disk drive of a personal computer. The computer holds the read/write head at the alignment track of a special alignment disk. The alignment track as well as the outermost track and an inner track contain all binary "1" bits while all other tracks contain no data. The alignment device contains an amplifier to amplify the signal read by the read/write head. The signal is detected at the output of the first read amplification stage of the disk drive. The alignment device amplifier signal is displayed on an indicator. A dot/bar display driver with light emitting diodes connected to the outputs is used as an indicator. The stepper motor or head carriage assembly is moved to maximize the indicator signal which corresponds to the optimum radial alignment of the read/write head. A hysteresis check may be performed by stepping the head from the inner data track to the alignment track and comparing the indicator signal to the signal obtained when the head is stepped from the outermost data track to the alignment track.

REFERENCES:
patent: 4477849 (1984-10-01), Berger
patent: 4513333 (1985-04-01), Young et al.
patent: 4542428 (1985-09-01), Yanagi

Affiliated with

Also associated with

Rating

Method and apparatus for aligning computer disk drives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for aligning computer disk drives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for aligning computer disk drives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1918826