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:
Jun. 04, 2013
Filed:
Sep. 20, 2010
Vijay Prabhakaran, Fremont, CA (US);
Wuxing Gan, Fremont, CA (US);
Ladislav R. Pust, Pleasanton, CA (US);
David E. Fowler, San Jose, CA (US);
Lanshi Zheng, San Ramon, CA (US);
Vijay Prabhakaran, Fremont, CA (US);
Wuxing Gan, Fremont, CA (US);
Ladislav R. Pust, Pleasanton, CA (US);
David E. Fowler, San Jose, CA (US);
Lanshi Zheng, San Ramon, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method and system for determining a shape of a portion of an air-bearing surface (ABS) of a head residing on a slider are described. The ABS is configured to fly at a fly height from and with a velocity with respect to a disk during normal operating conditions. The method and system include driving at least one heater residing in the head while the slider is substantially at the normal operating conditions with respect to the disk and the fly height. The shape of the portion of the ABS changes in response to the heater(s) being driven. The method and system also include performing Doppler measurements on the slider while the heater is driven. The shape may then be determined based on the Doppler measurements.