Title :
A novel digital method of generating a circle test pattern for television
Author :
Lappalainen, P. ; Ojala, L.
Author_Institution :
Helsinki University of Technology, Applied Electronics Laboratory, Department of Electrical Engineering, Otanemi, Finland
fDate :
1/1/1972 12:00:00 AM
Abstract :
Numerical computation of the coordinates of the circle points needed is based on simple incremental algorithms. The organization of the special-purpose computer is described. A major advantage over the analogue methods commonly used is the accuracy and the stability of the pattern.
Keywords :
communications applications of computers; computer applications; digital circuits; signal generators; special purpose computers; stability; television; television standards; test equipment; accuracy; circle; digital methods; numerical computation; special purpose computer; stability; television test pattern;
Journal_Title :
Radio and Electronic Engineer
DOI :
10.1049/ree.1972.0003
