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:
May. 02, 2006
Filed:
Jun. 09, 2003
Katsumi Tada, Kawasaki, JP;
Takuya Okamoto, Machida, JP;
Natsuko Sugaya, Kawasaki, JP;
Tadataka Matsubayashi, Yokohama, JP;
Yasuhiko Inaba, Yokohama, JP;
Yasushi Kawashimo, Hirakata, JP;
Katsumi Tada, Kawasaki, JP;
Takuya Okamoto, Machida, JP;
Natsuko Sugaya, Kawasaki, JP;
Tadataka Matsubayashi, Yokohama, JP;
Yasuhiko Inaba, Yokohama, JP;
Yasushi Kawashimo, Hirakata, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Word boundary identification operations such as morpheme analysis is performed on documents to be registered, and the top positions and the end positions of words are identified. Word boundary information is obtained based on these identification results. Search indexes are created for sub-strings of a predetermined length (n-grams) extracted from the document being registered. The search index includes document identification information as well as occurrence position information which indicates that the string is located at the n-th position from the beginning of the text data, and word boundary information for an n-gram in a document.