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:
Apr. 30, 2019
Filed:
Dec. 20, 2017
Applicant:
Marvell International Ltd., Hamilton, BM;
Inventors:
Supaket Katchmart, San Jose, CA (US);
David Sue-Hong Liaw, Sna Jose, CA (US);
Li Zhang, Milpitas, CA (US);
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01); G11B 11/105 (2006.01); G11B 5/592 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59666 (2013.01); G11B 5/5926 (2013.01); G11B 5/59688 (2013.01); G11B 11/10578 (2013.01); G11B 5/59672 (2013.01); G11B 5/59683 (2013.01);
Abstract
This disclosure describes apparatuses and techniques for multi-channel servo demodulation. Multiple servo demodulation channels enable additional information to be obtained during the self-servo writing process, such as relative positions of multiple read heads and tracking of multiple servo patterns. This additional information enhances accuracy for self-servo writing and can lead to higher recording densities in media drives, and thus more storage with little or no additional cost.