A New Dimension in Broadcast Graphics

Arthur A. Smith, Altaf Rahman, Renville H. McMann

A new design for a character generation system incorporating multiple microprocessors and a digital frame store is described. By storing an entire frame in digital form the system can position characters anywhere within the viewing area, even partially or completely overlaying other characters. By providing multiple intensity levels for each pixel in the frame store, positional resolution equivalent to 12 nanoseconds horizontally and to one-quarter of the interline spacing vertically is obtained while maintaining a 48-nanosecond clock cycle. The system also has 4096 possible colors, variable level keying, and computer-aided font composition.

Print ISSN
Published
1982-09
Content type
Original Research
DOI
10.5594/J00246