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:
Dec. 28, 2021
Filed:
Sep. 29, 2020
Tableau Software, Inc., Seattle, WA (US);
TABLEAU SOFTWARE, INC., Seattle, WA (US);
Abstract
A method compares text strings having Unicode encoding. The method receives a first string S=ss. . . sand a second string T=tt. . . t, where s, s, . . . , sand t, t, . . . , tare Unicode characters. The method computes a first string weight for the first string S according to a weight function ƒ. When S consists of ASCII characters, ƒ(S)=S. when S includes one or more non-replaceable non-ASCII characters, the first string weight ƒ(S) is a concatenation of an ASCII weight prefix ƒ(S) and a Unicode weight suffix ƒ(S). The method also computes a second string weight for the second text string T. Equality of the strings is tested using the string weights.