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. 20, 2013
Filed:
Apr. 05, 2011
Applicants:
Hiep the Tran, Milpitas, CA (US);
Jason Bellorado, Santa Clara, CA (US);
Inventors:
Hiep The Tran, Milpitas, CA (US);
Jason Bellorado, Santa Clara, CA (US);
Assignee:
SK hynix memory solutions inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01); G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
Writing servo wedge code to a disk is disclosed. A wedge-to-wedge time interval is determined. At least until it is determined that a lock criterion is met: For each wedge-to-wedge time interval, a wedge frequency error is computed based on an adjustable clock. The clock is adjusted based on one or more of the wedge frequency errors. It is determined whether a lock criterion is met based on one or more of the wedge frequency errors. After the lock criterion is met, servo wedge code is written to the disk.