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Title: Vector generator scan converter

High printing speeds for graphics data are achieved with a laser printer by transmitting compressed graphics data from a main processor over an I/O channel to a vector generator scan converter which reconstructs a full graphics image for input to the laser printer through a raster data input port. The vector generator scan converter includes a microprocessor with associated microcode memory containing a microcode instruction set, a working memory for storing compressed data, vector generator hardware for drawing a full graphic image from vector parameters calculated by the microprocessor, image buffer memory for storing the reconstructed graphics image and an output scanner for reading the graphics image data and inputting the data to the printer. The vector generator scan converter eliminates the bottleneck created by the I/O channel for transmitting graphics data from the main processor to the laser printer, and increases printer speed up to thirty fold. 7 figs.
Authors:
;
Publication Date:
OSTI Identifier:
6264948
Report Number(s):
PATENTS-US-A7152900
ON: DE89010811
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Research Org:
Lawrence Livermore National Lab., CA (USA)
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER OUTPUT DEVICES; COMPUTER ARCHITECTURE; COMPUTER GRAPHICS; CRAY COMPUTERS; DESIGN; INVENTIONS; LASERS; COMPUTERS 990210* -- Supercomputers-- (1987-1989)