Method for controlling servo information detection timing and rotational speed of disk, and disk drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 4, 2003
Grant Date -
Sep 13, 2001
app pub date -
Jan 17, 2001
filing date -
Jan 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method to enable servo information to be detected surely and stably even when a time interval between servo sectors is changed due to disk shifting. A time interval TS(i) is calculated according to an internal variable value, which is in proportion to a displacement .DELTA.r(i) of a servo area SF(i) in a radial direction of a subject disk (step S6). The displacement .DELTA.r(i) is calculated from already detected servo information[, thereby]. Thereby, a time interval for detecting servo information is adjusted according to the above described time interval TS(i) (steps S7 and S4). The time interval TS(i) is the time interval between passing of a servo sector in the servo area SF(i) under the head H and passing of a servo sector in the servo area SF(i+1) under the head H.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully