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. 16, 2005
Filed:
May. 19, 2003
Applicants:
Nan-husing Yeh, Foster City, CA (US);
Don R. Bloyer, Eden Prairie, MN (US);
John W. Dykes, Eden Prairie, MN (US);
Inventors:
Nan-Husing Yeh, Foster City, CA (US);
Don R. Bloyer, Eden Prairie, MN (US);
John W. Dykes, Eden Prairie, MN (US);
Assignee:
Seagate Technology LLC, Scotts Valley, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B027/36 ; G11B021/02 ;
U.S. Cl.
CPC ...
Abstract
A method for measuring spacing between a head and a storage medium is provided. The method includes obtaining a sample of a readback signal from a sequence of data stored on the storage medium using the head. An amplitude of the readback signal for a plurality of frequencies is calculated. Additionally, the method includes providing a measurement indicative of spacing between the head and the storage medium based on the amplitude.