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. 23, 2010
Filed:
Mar. 26, 2008
Tetsuaki Otsuki, Suwa, JP;
Tetsuaki Otsuki, Suwa, JP;
Seiko Epson Corporation, , JP;
Abstract
A device composed of structures and access methods for providing search functionalities is proposed. The structure includes a presence/absence information unit that stores bit-level items grouped in blocks. Other structures included are, a character string list that is used to store keys composed of character strings and a file specification unit that uniquely identify files from multiple files. Each element of the 2 former structures has a uniquely assigned identification number. The presence/absence information items associated with each file are ordered according to the identification numbers stated previously. The elements of the former 2 structures are many-to-many associated through the presence/absence information items, using a combination of identification numbers. An obtaining unit for search keys is provided, together with the output unit that produces file identifiers specified by the file specification unit.