Control scheme for multi-actuator disc drive

Details Control scheme for multi-actuator disc drive Control scheme for multi-actuator disc drive

1999-03-19

2000-09-19

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Time-sharing or multiplexing systems

360 75, 369 4435, G11B 554

Patent

active

061217425

ABSTRACT:
In a computer disc drive system having a plurality of voice coil motors for independently actuating a plurality of actuator arms or E-blocks, a single voice coil motor servo control circuit controls the plurality of voice coil motors. In a preferred embodiment, a single digital servo processor dynamically allocates servo bandwidth to the plurality of voice coil motors according to the present activity of each voice coil motor. In a preferred embodiment, the single digital servo processor allocates the greatest amount of bandwidth to a voice coil motor that is presently positioning an associated read/write head for writing, a lesser amount of bandwidth to a voice coil motor that is presently positioning a read/write head for reading, and the least amount of bandwidth to a voice coil motor that is presently seeking or idle.

REFERENCES:
patent: 4423448 (1983-12-01), Frandsen
patent: 4589036 (1986-05-01), Bertschy et al.
patent: 4707754 (1987-11-01), Patel et al.
patent: 4812935 (1989-03-01), Sleger
patent: 4851939 (1989-07-01), Seo et al.
patent: 4994931 (1991-02-01), Foote
patent: 5016131 (1991-05-01), Riggle et al.
patent: 5016160 (1991-05-01), Lambeth et al.
patent: 5218496 (1993-06-01), Kaczeus
patent: 5223993 (1993-06-01), Squires et al.
patent: 5267110 (1993-11-01), Ottesen et al.
patent: 5293282 (1994-03-01), Squires et al.
patent: 5343345 (1994-08-01), Gilovich
patent: 5805386 (1998-09-01), Faris

Affiliated with

Also associated with

Rating

Control scheme for multi-actuator disc drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control scheme for multi-actuator disc drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control scheme for multi-actuator disc drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1076592