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:
Mar. 25, 2014
Filed:
Nov. 07, 2011
Shih-chien Lin, Miaoli, TW;
Yu-hsun Wang, Kaohsiung, TW;
Shih-Chien Lin, Miaoli, TW;
Yu-Hsun Wang, Kaohsiung, TW;
Generalplus Technology Inc., Hsinchu, TW;
Abstract
On a two-dimensional optical identification device with same gray level, a plurality of two-dimensional optical identification codes are arranged, each having a plurality of data blocks and an outer positioning block. Each data block has a plurality of defined patterns, and each defined pattern is located in one of virtual areas produced by equally dividing the data block. The outer positioning block has a plurality of first positioning points and a first direction identification point, and is placed at two adjacent boundaries of the plurality of data blocks for defining the positions of the plurality of data blocks. A fixed position data block is selected as a data block coding indication block for indicating the coding of the other data blocks.