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:
Apr. 18, 2006
Filed:
Dec. 08, 1998
Mitsuo Sakurai, Nagano, JP;
Mitsuo Sakurai, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
To provide high-speed printing with an inexpensive arrangement, a dedicated printer control hardware circuitis provided between a printer driverof a host computer and a printer. The printer driverdivides an image to be printed into an illustration (a natural image), such as a photograph or a drawing, and characters/graphics. The printer driver outputs full-color RGB raster data for the illustration, while performing color conversion/halftoning for the character/graphic data and outputting binary CMYK raster data. The control circuitperforms color conversion/halftoning for the full-color illustration RGB raster data to convert them into binary CMYK raster data. Then, the control circuitsuperimposes the obtained binary CMYK raster data and the binary CMYK raster data for characters/graphics to form binary CMYK raster data for a complete print image, and transmits the final binary CMYK raster data to the printer. The control circuitalso rearranges or thins pixel data for interlace printing or overlap printing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile