
I ntrocl u ctio n to H DTV
13
Fujio, T., J. Ishida, T. Komoto, and
T. Nishizawa,
High Definition
Television System - Signal Standards
and Transmission,
NHK Science and
Technical Research Laboratories
Technical Note 239 (Aug. 1979);
reprinted in
SA4PTE Journal,
89 (8):
579-584 (Aug. 1980).
Fujio, T., et al.,
High Definition
television,
N HI< Science and Tech-
nical Research Laboratories Tech-
nical Monograph 32 (June 1982).
Developmental H DTV systems had
1125/60.00/2:1 scanning, an
aspect ratio of 5:3, and 1035
active lines. The alternate 59.94 Hz
field rate was added later. Aspect
ratio was changed to 16:9 to
achieve international agreement ...