The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2009
Filed:
Jan. 23, 2001
Stephen P Williams, Morgan Hill, CA (US);
Albert Hartman, Palo Alto, CA (US);
Thomas Tacklind, San Martin, CA (US);
Stephen P Williams, Morgan Hill, CA (US);
Albert Hartman, Palo Alto, CA (US);
Thomas Tacklind, San Martin, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A dual stage, head stack assembly () for a disk drive () having a storage disk () is provided herein. The head stack assembly () includes an actuator arm (), a coarse positioner (), a transducer assembly (), a base plate () and a fine positioner (). The coarse positioner () moves the actuator arm (). The transducer assembly () includes a load beam (), a flexure () and a data transducer (). The base plate () includes at least one positioner cavity () which receives the fine positioner (). A control system () directs current to the coarse positioner () to move the actuator arm () to position the data transducer () at or near a target track () on a storage disk (). The control system () also directs current to the fine positioner () to precisely position and maintain the data transducer on the target track (). Because the fine positioner () independently moves only the transducer assembly (), a higher system band-width is achieved.