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:
Nov. 02, 2021
Filed:
Jul. 10, 2018
Applicant:
Beijing Didi Infinity Technology and Development Co., Ltd., Beijing, CN;
Inventor:
Liwei Ren, San Jose, CA (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 40/205 (2020.01); G06F 12/1018 (2016.01); G06F 16/31 (2019.01); G06F 21/32 (2013.01); G06F 21/55 (2013.01);
U.S. Cl.
CPC ...
G06F 40/205 (2020.01); G06F 12/1018 (2013.01); G06F 16/325 (2019.01); G06F 21/32 (2013.01); G06F 21/556 (2013.01);
Abstract
A string of characters within a file may be obtained. A first sequence may be selected from the string of characters. A first hash may be generated based on the first sequence. A second sequence may be selected from the string of characters based on the first sequence. The second sequence may be shifted from the first sequence. A second hash may be generated based on the second sequence. A fingerprint for the file may be generated based on the first hash and the second hash.