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. 04, 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 / ;
U.S. Cl.
CPC ...
360 7708 ; 360 7702 ; 360 29 ;
Abstract
A demodulator system demodulates position information signals provided by a transducer in response to position information. The position information is read from a quadrature field and a normal field on a disk in a data storage system. A rectifier rectifies the position information signals to provide rectified position signals. An integrating capacitor integrates the rectified position signals to produce position error signals representative of trasducer position.