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:
May. 11, 2010
Filed:
Oct. 19, 2006
Thomas Robert Albrecht, San Jose, CA (US);
Mario Blaum, San Jose, CA (US);
Ksenija Lakovic, Menlo Park, CA (US);
Bruce Alexander Wilson, San Jose, CA (US);
Satoshi Yamamoto, San Jose, CA (US);
Thomas Robert Albrecht, San Jose, CA (US);
Mario Blaum, San Jose, CA (US);
Ksenija Lakovic, Menlo Park, CA (US);
Bruce Alexander Wilson, San Jose, CA (US);
Satoshi Yamamoto, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Servo patterns for patterned media. The servo pattern includes specification of cylinder/track ID with and without a Gray code. The servo pattern space is minimized by the optimum usage of the islands. This is achieved by island allocation rules to take advantage of non-magnetic island. The island allocation also provides for easier lift-off. Logic is used to encode and decode the Gray code. Further, the Gray code is designed to stabilize the magnetic island/non-magnetic island ratio to allow for easier manufacture.