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:
Apr. 26, 2011

Filed:

Jun. 12, 2008
Applicants:

Kyung-geun Lee, Gyeonggi-do, KR;

Jung-wan Ko, Gyeonggi-do, KR;

In-sik Park, Gyeonggi-do, KR;

Du-seop Yoon, Gyeonggi-do, KR;

Inventors:

Kyung-geun Lee, Gyeonggi-do, KR;

Jung-wan Ko, Gyeonggi-do, KR;

In-sik Park, Gyeonggi-do, KR;

Du-seop Yoon, Gyeonggi-do, KR;

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

An optical disc includes a read-only area having a first wobble, which is a data wobble formed in the read-only area for only reading, a readable/writable area having a second wobble, which is different from the data wobble, and a connection area between the read-only area and the readable/writable area having a third wobble having the same frequency as one of the first and second wobbles.


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