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:
Jan. 22, 2008

Filed:

Jun. 18, 2003
Applicant:

Sang-heun OH, Gyeonggi-do, KR;

Inventor:

Sang-heun Oh, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); H04N 1/40 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of extracting a watermark from watermarked data includes extracting a plurality of watermarks from the watermarked original data, calculating reliability of each of the extracted watermarks, and determining a final watermark based on the calculated reliability of each of the extracted watermarks.


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