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:
Dec. 09, 1997
Filed:
Sep. 06, 1994
Hisao Shirasawa, Yokohama, JP;
Wasaku Yamada, Mitaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing system includes an input part for reading an image from a color document containing a multilevel gradation graphic image and a text image, a region separator part for separating the image into a plurality of elemental blocks having M.times.N picture elements according to a type of image data that is contained in each elemental block, whether the elemental block contains a black-and-white line portion of the image or a halftone portion of the image, and an encoding part for encoding image data in the black-and-white line portion through an encoding process appropriate for bi-level image data and for encoding image data in the halftone portion through an encoding process appropriate for multilevel gradation image data so as to produce a compressed image.