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:
Apr. 28, 1998
Filed:
Jun. 27, 1995
Katsumi Tada, Yokohama, JP;
Atsushi Hatakeyama, Kawasaki, JP;
Hisamitsu Kawaguchi, Sagamihara, JP;
Natsuko Mizutani, Kawasaki, JP;
Kanji Kato, Tokorazawa, JP;
Satoshi Asakawa, Hirakata, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A text search method for structured documents and apparatus wherein structured document database to be searched is created by adding logical structure length information to logical structure discriminating information on the basis of a structured document constituted by a plurality of logical structures and logical structure discriminator information, and in searching the structured document database in accordance with an entered search key constituted by a logical structure and a search character string, the search of a logical structure other than the entered logical structure is skipped based upon the data length information. In the method and apparatus, by using a structured document, structured document database to be searched is created which is constituted by a condensed text for each logical structure constituted by a list of words contained in the logical structure, a character occurrence bitmap for each logical structure constituted by a list of characters contained in the logical structure and an source structured document, and then the structured document database is searched in accordance with an entered search key constituted by a logical structure and a search character string. An source structured document is searched optionally depending upon the entered search key.