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:
Feb. 01, 2011
Filed:
Nov. 14, 2007
Masahiro Kataoka, Kawasaki, JP;
Takashi Yamashita, Kawasaki, JP;
Kenji Furuichi, Kawasaki, JP;
Takashi Tsubokura, Setagaya, JP;
Masahiro Kataoka, Kawasaki, JP;
Takashi Yamashita, Kawasaki, JP;
Kenji Furuichi, Kawasaki, JP;
Takashi Tsubokura, Setagaya, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An information retrieval apparatus includes contents, an index data generating unit, a character frequency management data generating unit, a compressing/encrypting unit, a retrieval initializing unit, a full text retrieving unit, and a retrieval result displaying unit. The character frequency management data generating unit generates character frequency management data based on the contents. The compressing/encrypting unit compresses the contents and encrypts the character frequency management data. The retrieval initializing unit decrypts encrypted character frequency management data. The full text retrieving unit executes full text retrieval for compressed contents using the character frequency management data and index data when receiving a retrieval keyword. The retrieval result displaying unit decompresses a retrieval candidate selected from retrieval candidates and displays as a retrieval result.