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. 17, 2017
Filed:
May. 03, 2017
Western Digital Technologies, Inc., San Jose, CA (US);
Masahito Kobayashi, Newport Beach, CA (US);
Bryan Rowan, San Jose, CA (US);
Tetsuo Semba, Zama, JP;
Kevin Tzou, San Jose, CA (US);
Gary Herbst, San Jose, CA (US);
Western Digial Technologies, Inc., San Jose, CA (US);
Abstract
A data storage device is disclosed comprising a first disk comprising first servo sectors A-Adistributed around a circumference of the first disk, and a second disk comprising second servo sectors B-Bdistributed around a circumference of the second disk, wherein the second servo sectors B-Bare offset circumferentially from the first servo sectors A-A. While the first and second disks are rotating second servo information is transmitted from a second servo channel to a first servo channel. One of the first servo sectors Ai is read to generate first servo information, and a first command value is generated based on the first servo information and the second servo information, wherein a first actuator is controlled based on the first command value.