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:
May. 04, 2010
Filed:
Jan. 17, 2006
Applicant:
Chen-hsiang Shih, Hsiu-Shui Hsiang, Chang-Hua Hsien, TW;
Inventor:
Chen-Hsiang Shih, Hsiu-Shui Hsiang, Chang-Hua Hsien, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of effacing zipper image, applicable to scan a document by a scanner with a stagger charge-coupled device. The nth (n is a positive integer) pixel value obtained by scan on a scan line at which the zipper image is produced is subtracted by the (n+1)th pixel value obtained by scan on the scan line. The absolute value of the result is then compared to a critical value. If the result is smaller than the critical value, the nth pixel is modified by the method.