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. 26, 1992
Filed:
Sep. 29, 1989
Applicant:
Inventors:
Gerald L Weispfenning, St. Paul, MN (US);
Lloyd C Goss, Bloomington, MN (US);
Assignee:
Seagate Technology, Inc., Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369 32 ; 369 4428 ; 360 7705 ; 360 7804 ; 360 7814 ;
Abstract
Transducer position is determined relative to a disk in a data storage system. Track identification information is read from a disk in the data storage system to provide a coarse position signal identifying a track that the transducer is positioned over. Position error samples are read from a disk in the data storage system to provide a fine position signal representing transducer position error within a track that the transducer is positioned over. Then, the coarse position signal and the fine position signal are correlated so they correspond to the same track on the disk.