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:
May. 06, 2003
Filed:
Apr. 28, 1999
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention enables image information of high resolution to be transferred via a transmission line with limited band width using a simple configuration. In transferring image information between a main body of a computer and a display, a dither matrix is used to update images stored in the display. That is, a plurality of blocks whose size is of a predetermined dither matrix are defined in an image, and information of each pixel in each block is transferred to the display in order of a value of a corresponding element in the dither matrix. Transfer of unchanged pixel data can be omitted. In addition, in transferring image information between the main body of the computer and the display, image information stored in the computer is divided into a plurality of blocks, for each of which the number of changed pixels or the number of writings to pixels in the block is calculated so that image information in blocks which exceed a predetermined number is transferred to the display block by block.