Rotating rigid disk data storage device
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United States of America Patent
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-
May 7, 1985
Issued Date -
N/A
app pub date -
Mar 15, 1983
filing date -
Sep 27, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved rotating disk data storage device is achieved in a combination of an optical encoder to detect data track crossings, a servo sector surface on one of a plurality of rotating data storage disks with the surface being filled with a pattern of alternating bursts which are read for relative amplitude and compared to provide track centerline information. A programmed microprocessor and a rotary actuator for the data transducers combine with the other elements to move the transducers from track to track and keep them on track during data read and write operations.
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