Device for identifying types of document files
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorHajime Tomizawa
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a device for identifying types of document files includes an extraction unit, an evaluation unit, and a document type identification unit. The extraction unit extracts document feature information indicating distinguishing information for a document included in a document file. The evaluation unit verifies the validity of the document feature information extracted by the extraction unit. The document type identification unit identifies a type of the document file corresponding to the document feature information extracted by the extraction unit if the document feature information is valid.
Claims17
A device for identifying types of document files comprising:
- an extraction unit that extracts document feature information indicating distinguishing information for a document included in a document file;
- an evaluation unit that verifies the validity of the document feature information extracted by the extraction unit;
- and
- a document type identification unit that identifies a type of the document file corresponding to the document feature information extracted by the extraction unit if the document feature information is valid,
- wherein the document file is one of a plurality of types, and the document feature information is different for each type,
- wherein the device further comprises an extraction method storage unit that stores extraction method information describing a plurality of methods used to extract the document feature information from the document file for the respective types of the document files, and
- wherein the extraction unit extracts the document feature information from the document file according to the extraction method information stored in the extraction method storage unit.
A method of identifying types of document files comprising:
- extracting document feature information indicating distinguishing information for a document included in a document file;
- verifying the validity of the extracted document feature information;
- and
- identifying a type of the document file corresponding to the extracted document feature information if the document feature information is valid,
- wherein the document file is one of a plurality of types, and the document feature information is different for each type,
- wherein the method further comprises storing extraction method information which describes a plurality of methods used to extract the document feature information from the document file for the respective types of the document files, in an extraction method storage unit, and
- wherein the extraction of the document feature information includes extracting the document feature information from the document file according to the extraction method information stored in the extraction method storage unit.
Dependencies are inferred from the claim text.