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:
Mar. 20, 2012
Filed:
Apr. 02, 2009
Masashi Nishikawa, Hyogo, JP;
Masashi Nishikawa, Hyogo, JP;
Glory Ltd., Himeji-shi, JP;
Abstract
In an apparatus for detecting a stain on a paper-sheet, a type and a transportation direction of the paper sheet are identified, and the information on whether each extraction target area of a read image corresponds to a white portion or a patterned portion of the paper sheet are stored. When the extraction target area corresponds to the white portion, a pixel having a lowest pixel value is extracted from a plurality of pixels constituting the extraction target area, and the read image is compressed into the pixel values of the extracted pixels as representative values, to generate a compressed image including a characteristic of a fine graffiti line drawn with a pencil or the like.