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.

Date of Patent:
Sep. 10, 2024

Filed:

Sep. 06, 2023
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventors:

Hitoshi Hasegawa, Kawasaki Kanagawa, JP;

Hiroyuki Takeda, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1889 (2013.01);
Abstract

According to an embodiment, upon a failure in detection of a servo mark from servo data recorded in a first normal servo sector in a write operation, a controller of a magnetic disk device stops a write operation. Then, the controller demodulates the servo data including the servo mark, for the servo data recorded in a first short servo sector being a short servo sector immediately before the first normal servo sector, and resumes the write operation from a data area immediately after the first normal servo sector.


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