DocumentCode
2689835
Title
A high speed outline front rasterizing LSI
Author
Kai, Naoyuki ; Minagawa, Tsutomu ; Nagashima, Ichiro ; Ohhashi, Masahide
fYear
1989
fDate
15-18 May 1989
Abstract
A description is given of a high-speed outline front rasterizing LSI, the Font Graphics Accelerator (FGA), for desktop-publishing applications. A filling algorithm that is easy to implement and assures the correct filling has been developed for the FGA. The FGA has dedicated hardware that rasterizes a Bezier curve at an average of 200 ns/dot by sequentially dividing the curve. It also has a digital difference analyzer for generating lines and arcs. Using this hardware it can generate Japanese kanji characters at an average rate of 4000 characters/s. The chip was fabricated with 1.2- μm double-metal-layer CMOS technology, and operation at 20 MHz has been achieved
Keywords
CMOS integrated circuits; character sets; computer graphic equipment; digital integrated circuits; large scale integration; linguistics; 1.2 micron; 20 MHz; Bezier curve; Font Graphics Accelerator; Japanese kanji characters; character generation; dedicated hardware; desktop-publishing applications; digital IC; digital difference analyzer; double-metal-layer CMOS technology; filling algorithm; high speed; outline front rasterizing LSI;
fLanguage
English
Publisher
ieee
Conference_Titel
Custom Integrated Circuits Conference, 1989., Proceedings of the IEEE 1989
Conference_Location
San Diego, CA, USA
Type
conf
DOI
10.1109/CICC.1989.56827
Filename
5726294
Link To Document