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. 20, 2015
Filed:
Sep. 25, 2012
Applicant:
Oracle International Corporation, Redwood City, CA (US);
Inventor:
Faramarz Mahnad, Brookline, MA (US);
Assignee:
Oracle International Corporation, Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/095 (2006.01); G11B 20/10 (2006.01); G11B 20/12 (2006.01); G11B 20/14 (2006.01);
U.S. Cl.
CPC ...
G11B 20/10194 (2013.01); G11B 20/1201 (2013.01); G11B 20/1407 (2013.01); G11B 2020/1267 (2013.01); G11B 2020/1287 (2013.01);
Abstract
Amplitude or phase modulated un-compensated wobble patterns representing address patterns for track addresses of optical media are generated. A filter is applied to the un-compensated wobble patterns to pre-compensate the un-compensated wobble patterns. When an inverse of the filter is applied to a signal representing the pre-compensated wobble patterns in the presence of noise, the noise is suppressed and the un-compensated wobble patterns are substantially recovered.