Vector generator scan converter
- Livermore, CA
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 (input/output) 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 hardward 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.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4918624
- OSTI ID:
- 867347
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
generator
scan
converter
printing
speeds
graphics
data
achieved
laser
printer
transmitting
compressed
main
processor
input
output
channel
reconstructs
image
raster
microprocessor
associated
microcode
memory
containing
instruction
set
storing
hardward
drawing
graphic
parameters
calculated
buffer
reconstructed
scanner
reading
inputting
eliminates
bottleneck
created
increases
speed
thirty
fold
vector generator
image data
scan converter
generator scan
main process
graphics image
graphics data
data input
buffer memory
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