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. 13, 2015
Filed:
Jan. 20, 2011
Applicants:
Sumio Sekigawa, Osaka, JP;
Charles Pandana, Fremont, CA (US);
Mats Oberg, Cupertino, CA (US);
Antoon Dekker, Eindhoven, NL;
Inventors:
Sumio Sekigawa, Osaka, JP;
Charles Pandana, Fremont, CA (US);
Mats Oberg, Cupertino, CA (US);
Antoon Dekker, Eindhoven, NL;
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01); G11B 7/002 (2006.01); G11B 7/24082 (2013.01); G11B 7/005 (2006.01); G11B 7/007 (2006.01);
U.S. Cl.
CPC ...
G11B 7/002 (2013.01); G11B 7/0053 (2013.01); G11B 7/24082 (2013.01); G11B 7/007 (2013.01);
Abstract
The present disclosure describes techniques for DVD-RAM header or land/groove detection. In some aspects, a wobble signal is integrated, an offset is removed from the integrated wobble signal, and a header is detected in the non-offset integrated wobble signal. In some aspects, a threshold value is adjusted based on a comparison of the received wobble signal and the threshold value, and a header is detected based on the adjusted threshold value.