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:
Jun. 21, 2016
Filed:
May. 15, 2014
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/10 (2006.01); G11B 7/005 (2006.01); G11B 7/1395 (2012.01); G11B 7/1398 (2012.01); G11B 7/135 (2012.01); G11B 7/1374 (2012.01); G11B 7/1376 (2012.01); G11B 7/1369 (2012.01); G11B 7/1381 (2012.01);
U.S. Cl.
CPC ...
G11B 7/005 (2013.01); G11B 7/135 (2013.01); G11B 7/1369 (2013.01); G11B 7/1374 (2013.01); G11B 7/1376 (2013.01); G11B 7/1381 (2013.01); G11B 7/1395 (2013.01); G11B 7/1398 (2013.01); G11B 20/10009 (2013.01);
Abstract
An optical medium reproducing apparatus that optically reproduces an optical medium on which a plurality of tracks is formed in which a beam returning from the optical medium is divided into a first region of an outside portion and a second region of an inside region, according to the shape of the pupil of an object lens, and crosstalk between the tracks is reduced by using a first detection signal of the first region and a second detection signal of the second region.