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:
Aug. 07, 2007
Filed:
Feb. 25, 2005
Disk drive that generates a position error signal and a fly height signal from a servo burst pattern
Ara Patapoutian, Hopkinton, MA (US);
Michael Leis, Framingham, MA (US);
Ara Patapoutian, Hopkinton, MA (US);
Michael Leis, Framingham, MA (US);
Maxtor Corporation, Longmont, CO (US);
Abstract
A disk drive includes a rotatable data storage disk, a transducer, an actuator, and a servo burst demodulator. The disk includes a servo burst pattern thereon within a single servo sector. The transducer is configured to generate a read signal from the servo burst pattern. The actuator is configured to position the transducer relative to the disk. The servo burst demodulator is configured to generate a position error signal from the contributions of the servo burst pattern to the read signal, and is configured to generate a fly height signal from the contributions of the servo burst pattern to the read signal. The position error signal is indicative of a radial location of the transducer relative to the disk. The fly height signal is indicative of a height of the transducer from the disk.