This is famous image because this is
said to be used by Japanese television
inventor "Kenjirou Takayanagi"as test
pattern.
It is first character of Japanese alphabet.
Signal source is still picture taken by digital camera.Synchronization
is distorted.Do you think about this rather well(it is consist of only
32 lines)
Today,some people wonder why old television experimenter couldn't notice
the fact that CRT system is superior to mechanical scanning television
system,I think that reception image of the CRT was not sharp ,but image
of mechanical television system is sharp,but mechanical television is difficult
to synchronize rotation perfectly by those day's electronics,so the picture
of mechanical TV taken by camera is bad image like the picture out of focus.
This pictures signal is created by PC.
It is written on those day's the electrician(magazine) about the television
signal "a sound resemble the rasping of steel with a blunt file".
At the beginning of Shouwa Era(1930),Dr,Kenjirou Takayanagi demonstrated his new television system to Japanese emperor.This movie is reproduction of his demonstration.To be exact,his television system used CRT,but this reproduction used nipkow disk.
Caution ! This signal is very noisy.Please make sure your volume level
!!
Slow flicker from left to right is due to this movie taken by the digital
Camera.If you watch this television directly , you will not feel flicker
although it has only 12.5 flame per second.
This is the left picture's model .
He got a burn due to strong lights.
Felix the cat.
This is a Chinese character.
It means "Take something"
in Japanese..
This is perfectly distorted
(mis- synchronization).
The picture of mis-synchronization.
(Signal source is same as left picture)
This picture is my face.
Sample Movies
Pictures
Example Pictures and Movies by Mechanical Scanning Television