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:
Aug. 18, 2020
Filed:
Sep. 04, 2019
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Minato-ku, Tokyo, JP;
Takuya Ogawa, Machida Tokyo, JP;
Fumiya Kudo, Kamakura Kanagawa, JP;
Naoki Tagami, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Abstract
According to one embodiment, a magnetic disk device includes a disk including two first servo sectors arranged side by side in a circumferential direction and a second servo sector located between the two first servo sectors, a head that writes data to the disk and reads data from the disk, and a controller that adjusts a second timing at which the second servo sector is demodulated based on a first timing at which the first servo sector is demodulated, and corrects a first initial phase of a first demodulation signal obtained by demodulating the second servo sector at the second timing, based on a first amplitude of the first demodulation signal.