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. 01, 2010
Filed:
Feb. 24, 2009
Hiroshi Suzuki, Kawasaki, JP;
Hiroshi Suzuki, Kawasaki, JP;
Toshiba Storage Device Corporation, Tokyo, JP;
Abstract
There is provided a head control apparatus that controls the flying height of a head with respect to a disk by controlling heater current supplied to a heater for head protrusion adjustment. The head control apparatus includes: an acquisition section that acquires flying height information which is information concerning a variation in the flying height of the head; a determination section that determines whether the flying height variation is caused by a variation in atmospheric pressure based on a measured temperature and the flying height information acquired by the acquisition section; and a control section that controls, in the case where the determination section has determined that the flying height variation is caused by a variation in atmospheric pressure, heater current based on control information corresponding to the flying height variation caused by the atmospheric pressure variation.