전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제28B권9호
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- Pages.712-718
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- 1991
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- 1016-135X(pISSN)
한글 문자의 생성을 위한 하드웨어 가속기 개발
Development of a Hardware Accelerator for Generation of Korean Character
초록
In this paper, we propose a graphic system for high speed generation of bitmap font data from the outline font data such as PostScript, etc. In desk-top publishing system. A VLSI chip called KAFOG was designed for the high-speed calculation of a cubic Bezier curve, which was implemented in 1.5\ulcorner CMOS gate array using 17,000 gates. A cubic Bezier curve is approximated by a set of line segments in KAFOG at the throughput of 250K curves per second with the clock frequency of 40 MHz. A prototype graphic system was developed using two MC6800 microprocessors and the KAFOG chip. Two microprocessors cooperate in a master and slave mode, and handshaking is used for communication between two processors. KAFOG chip, being controlled by the slave processor, operates as a coprocessor for the calculation of the outline font. The throughput of the prototype graphic system is 40 64
키워드