Information recording device

Details Information recording device Information recording device

1996-10-16

1999-06-22

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318561, 318 75, 318 7801, 318 7806, H02P 528

Patent

active

059145811

ABSTRACT:
In order to raise the drive efficiency of a spindle motor that drives a recording disk for information recording and hence to achieve power saving/lowering of noise level of the information recording device as a whole, in an information recording device wherein a synchronous motor is employed as the spindle motor that drives the recording disk for information recording, and wherein the head is accessed for purposes of reading or writing information at a designated position on the recording disk, with change in mechanical output of this spindle motor, the mechanical output value sought for the spindle motor is found from the head position on the recording disk before and after access, and the thus-found mechanical output value is used to adjust the electrical input to the spindle motor.

REFERENCES:
patent: 5293565 (1994-03-01), Jaquette et al.
patent: 5576909 (1996-11-01), Dierkes et al.
patent: 5691857 (1997-11-01), Fitzpatrick et al.

Affiliated with

Also associated with

Rating

Information recording device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information recording device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information recording device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1710033