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:
Jan. 17, 2017
Filed:
Nov. 20, 2015
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Hiroshi Isokawa, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A storage apparatus of an embodiment includes a magnetic disk, a head, and a controller. The head includes a writing unit that outputs a magnetic field to record write data into a recording region of the magnetic disk to which light is irradiated and a reading unit that reads read data from the recording region of the magnetic disk. Based on a first spectrum of first read data read by the reading unit at a first position of the magnetic disk and a second spectrum of second read data read by the reading unit at a second position which is a following position of the first position, the controller detects whether an offset of the writing unit occurs while writing into the recording region of the magnetic disk is performed by the writing unit.