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:
Oct. 06, 2009
Filed:
Aug. 16, 2006
Atsuo Iida, Kawasaki, JP;
Atsuo Iida, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
There is provided an information recording/reproduction apparatus, a head levitation height control method, and a head levitation control circuit capable of adequately controlling a head levitation height. An information recording/reproduction apparatus having a headthat performs recording or reproduction of information on/from a recording medium, comprises: a drive sectionthat changes the levitation height of the headrelative to the recording medium based on a first drive method; a drive sectionthat changes the levitation height of the headrelative to the recording medium based on a second drive method different from the first drive method; a levitation height measurement section that measures the levitation height of the head; and a controller that controls the drive sectionsandbased on the head levitation height measured by the levitation height measurement section.