Method and apparatus for synchronizing the rotations of data sto

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360 7303, 360 7301, G11B 2719

Patent

active

057965404

ABSTRACT:
A synchronization technique is described which finds use in a disk array subsystem comprising a plurality of disk storage devices connected to a controller. In response to signals from each of the devices specifying their angular position at a particular time, the controller calculates the relative angular positions of the devices and issues a signal to each of the devices specifying the amount and direction of chance in rotational velocity required to achieve synchronization. In a two device subsystem, the signal to one device will specify a speed decrease and the signal to the second device will specify a speed increase.

REFERENCES:
patent: 4618897 (1986-10-01), Johnson et al.
patent: 4675864 (1987-06-01), Bliek et al.
patent: 4870643 (1989-09-01), Bultman et al.
patent: 4890045 (1989-12-01), Ishizuka
patent: 4907105 (1990-03-01), Kurzweil, Jr.
patent: 4918544 (1990-04-01), Ishizuka et al.
patent: 5159503 (1992-10-01), Mitamura et al.
patent: 5237466 (1993-08-01), Glaser et al.
patent: 5303097 (1994-04-01), Baba et al.
patent: 5416648 (1995-05-01), Jeppson et al.
patent: 5555390 (1996-09-01), Judd 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

Method and apparatus for synchronizing the rotations of data sto 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 synchronizing the rotations of data sto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for synchronizing the rotations of data sto will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1120381

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