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.:

US 9344600 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2016

Filed:

Jun. 04, 2015
Applicant:

National Taipei University of Technology, Taipei, TW;

Inventors:

Yung-Yao Chen, Taipei, TW;

Hsien-I Lin, Taipei, TW;

Kai-Wen Chen, Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/32 (2006.01); H04N 1/405 (2006.01); G06K 15/00 (2006.01); G06K 19/06 (2006.01); G06T 1/00 (2006.01); G06K 15/02 (2006.01); B41M 3/10 (2006.01); B41M 3/14 (2006.01); B42D 25/305 (2014.01); B42D 25/333 (2014.01);
U.S. Cl.
CPC ...
H04N 1/32256 (2013.01); G06K 15/1881 (2013.01); G06K 15/1889 (2013.01); G06K 15/4095 (2013.01); G06K 19/06093 (2013.01); G06T 1/0028 (2013.01); H04N 1/32229 (2013.01); H04N 1/405 (2013.01); H04N 1/4051 (2013.01); H04N 1/4055 (2013.01); B41M 3/10 (2013.01); B41M 3/14 (2013.01); B42D 25/305 (2014.10); B42D 25/333 (2014.10); G06K 19/06178 (2013.01); G06T 2201/0051 (2013.01); G06T 2201/0064 (2013.01); G06T 2201/0065 (2013.01); H04N 2201/327 (2013.01); H04N 2201/3271 (2013.01);
Abstract

An encoding system is for generating a data-bearing halftone image. The encoding system is configured to: convert a grayscale image into a halftone image having a plurality of image cells; select, from the halftone image, at least one of the image cells to be a carrier cell according to a set of reference dot patterns, the carrier cell having a dot pattern identical to one of the reference dot patterns; and generate a data-bearing halftone image by replacing the dot pattern of the carrier cell by a specified one of multiple encoding dot patterns of one of a plurality of the sets of encoding dot patterns each being associated with a code. The data-bearing halftone image is encoded with a code associated with the one of the sets of the encoding dot patterns.


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