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.

Date of Patent:
Jun. 02, 2009

Filed:

Jul. 07, 2005
Applicants:

Min-seok Kim, Suwon-si, KR;

Kyung-pil Kang, Seoul, KR;

Inventors:

Min-seok Kim, Suwon-si, KR;

Kyung-pil Kang, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical disc player for recording/reproducing data on an optical disc, including an optical pickup unit emitting a laser beam to the surface of the optical disc and extracting an RF signal corresponding to the recorded data, a signal size computing unit computing an envelope size of the RF signal, a tilt adjuster adjusting a tilt of the optical disc, and a controller for designating the tilt at a maximum envelope size as an optimal tilt, and controlling the tilt adjuster to change a present tilt based on the optimal tilt. Similarly, it is also possible to designate an optimal skew based on the skew at a maximum envelope size. Accordingly, embodiments of the present invention make it possible to obtain the optimal tilt/skew using the RF envelope.


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