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:
Sep. 29, 2020
Filed:
Nov. 27, 2019
Alibaba Group Holding Limited, George Town, KY;
Yinhai Tu, Hangzhou, CN;
Alibaba Group Holding Limited, George Town, Grand Cayman, KY;
Abstract
One or more implementations shown in the present specification provide a method for generating an identification code. A center of a detection area is determined. A plurality of concentric circles are determined based on the center. A plurality of position detection patterns whose distance from the center is the radius are determined based on the center and a radius. A start pattern from each position detection pattern is determined. N-ary characters corresponding to a to-be-encoded content to obtain the identification code are encode on the concentric circles based on a position of the start pattern. Codes corresponding to adjacent and same characters in the N-ary characters form an arc line segment. A code corresponding to a character that is different from both adjacent characters in the N-ary characters is a point. Codes corresponding to different characters in the N-ary characters have different colors.