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. 16, 2004
Filed:
Jan. 18, 2000
David A. Evans, Pittsburgh, PA (US);
Claritech Corporation, Pittsburgh, PA (US);
Abstract
A method and apparatus for retrieving similar or identical textual passages among different documents is disclosed. Normal discourse structures along with textual content attributes are used to encode a known passage with “marker sequences” that give a characterizing “signature” to the passage. The encoded known passage is then evaluated against similarly encoded passages appearing in a database of documents. If it is determined that there is a possible match between the encoded known passage and an encoded passage in a database document, a sequential string search is performed to determine whether the two passages are likely to be similar or identical. If the sequential string search records a probable match between the known passage and the database passage, the database passage is displayed for further review.