Patent
1988-10-04
1992-06-16
Herndon, Heather R.
G06F 314
Patent
active
051229730
ABSTRACT:
The present invention is a front-end system for the conversion of graphical data and coded font data into a serial pixel-bit stream for a raster output scanner, such as a laser printer. The front-end system includes a front-end controller, input/output means, which can be connected to a computer or a data network, and a memory for storing graphical data and coded font datat. Final printing format is determined by a fine formatter. The present front-end system also includes a bitmap memory for storing a bitmap representation of the page to be printed, a bitmap filler for expanding the data and placing them into the bitmap memory, and a bitmap reader. The functions of the front-end controller and of the input/output means are implemented in a first processor and the functions of the fine formatter and the bitmap filler are implemented in a second processor. The bitmap reader is formed by dedicated hardware logic. With the present construction, a high speed page processing can be achieved with a reduced number of processors.
REFERENCES:
patent: 4342029 (1982-07-01), Hofmanis et al.
patent: 4439759 (1984-03-01), Fleming et al.
patent: 4439760 (1984-03-01), Fleming
patent: 4454593 (1984-06-01), Fleming et al.
patent: 4564915 (1986-01-01), Evans et al.
patent: 4722064 (1988-01-01), Suzuki
Kessels Gerardus G.
Tunnissen Franciscus H. J.
Venner Cornelis W.
Willems Theodorus H.
Herndon Heather R.
OCE Nederland B.V.
LandOfFree
Front-end system for a raster output scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Front-end system for a raster output scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Front-end system for a raster output scanner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1758818