Magnetic disc storage apparatus

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C360S078040

Reexamination Certificate

active

06903894

ABSTRACT:
A magnetic disc storage apparatus including a magnetic head for reading information from a storage track on a magnetic storage disc driven to spin, a voice coil motor for moving the magnetic head above the disc, and a magnetic head drive system for executing a position control of the magnetic head by controlling driving current of the voice coil motor by a feedback control while monitoring a state of reading the magnetic head in which the magnetic head drive system includes multi-mode driving means for executing a linear drive mode for controlling, as an analog amount, the driving current of the voice coil motor when an amount of driving to move the magnetic head is small and executing a pulse drive mode for controlling, as a digital amount, the driving current of the voice coil motor when the amount of driving to move the magnetic head is large.By the invention, both of high accuracy formation of position control of the magnetic head in tracking and high speed formation of access by shortening seek time are enabled while effectively reducing heating or EMI inducing read/write error.

REFERENCES:
patent: 5838515 (1998-11-01), Mortazavi et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magnetic disc storage apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3494246

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.