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. 03, 2009
Filed:
Jan. 12, 2007
Zhiguo Chang, Guangdong, CN;
Peng Wang, Beijing, CN;
Yingfeng LV, Guangdong, CN;
Fu Zhang, Guangdong, CN;
Xiaoyun Ding, Guangdong, CN;
Zhiguo Chang, Guangdong, CN;
Peng Wang, Beijing, CN;
Yingfeng Lv, Guangdong, CN;
Fu Zhang, Guangdong, CN;
Xiaoyun Ding, Guangdong, CN;
Shenzhen SYSCAN Technology Co., Ltd., Shenzhen, Guangdong, CN;
Abstract
A two-dimensional barcode includes a plurality of macro modules arranged in a two-dimensional array in a spiral sequence, each of macro modules includes a predetermined number of data unit modules for storing data codewords of a predetermined binary stream of bits, a predetermined number of cluster unit modules for storing a predetermined cluster number representing a location of the macro module, and a predetermined number of rim unit modules which possess a predetermined color to form a rim of the macro module. The rim unit modules of two adjacent macro modules are contrasting with each other to enhance identification of the respective macro module.