Method and apparatus for positioning head of disk drive using zone-bit-recording
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Jan 15, 1991
filing date -
Jan 15, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A zone-bit-recording disk drive has a rotating platter with a surface which is divided into at least two zones each having a respective different number of angularly spaced sectors therein. A method and apparatus for positioning the head relative to the platter surface involve maintaining a count of the number of sectors which pass the head after the platter passes a predetermined angular orientation, ignoring the count during a time interval when the head moves out of a first of the zones toward a second of the zones which contains the specified sector and until the head has entered the second zone and the platter thereafter passes a predetermined angular orientation, and thereafter determining when the count corresponds to the specified sector to be accessed.
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