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:
Jul. 21, 2020
Filed:
Apr. 24, 2019
Alibaba Group Holding Limited, George Town, KY;
Chao Xiu, Hangzhou, CN;
Lei Wang, Hangzhou, CN;
Xing Chen, Hangzhou, CN;
Chuanzhi Li, Hangzhou, CN;
Yongzhi Zhang, Hangzhou, CN;
Alibaba Group Holding Limited, George Town, Grand Cayman, KY;
Abstract
A verification request is received. In response to receiving the verification request, a first character string is obtained. The first character string comprises one or more variable characters. At least one of the one or more variable characters in the first character string is replaced with at least one backup character to generate a second character string based on multiple pre-established corresponding relationships. A verification code is generated based on the second character string. A user corresponding to the verification request is verified based on a user input corresponding to the verification code.