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:
Jun. 02, 1998
Filed:
Jul. 10, 1995
Applicant:
Inventor:
Richard Hull, Bristol, GB;
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G06F / ;
U.S. Cl.
CPC ...
395899 ; 364400 ; 382186 ; 382187 ; 382229 ;
Abstract
An improved method of matching a query string against a plurality of candidate strings replaces a highly computationally intensive string edit distance calculation with a less computationally intensive lower bound estimate. The lower bound estimate of the string edit distance between the two strings is calculated by equalising the lengths of the two strings by adding padding elements to the shorter one. The elements of the strings are then sorted and the substitution costs between corresponding elements are summed.