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:
Oct. 26, 2010

Filed:

Nov. 29, 2007
Applicants:

In-joo Kim, Suwon-si, KR;

Tatsuhiro Otsuka, Suwon-si, KR;

An-sik Jeong, Hwaseong-si, KR;

Inventors:

In-joo Kim, Suwon-si, KR;

Tatsuhiro Otsuka, Suwon-si, KR;

An-sik Jeong, Hwaseong-si, KR;

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

An optical disk reproducing apparatus to equalize and reproduce a signal optically read from an optical disk includes a controller to determine a number of regions to divide the optical disk into according to a reproduction frequency variation corresponding to a signal quality variation, and an equalizer to filter signals optically read from the divided regions with a cut-off frequency corresponding to the reproduction frequency variation.


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