Yasujiro Niwa
Encyclopedia
was a Japanese electrical scientist. In the 1920s, he invented a simple device for phototelegraphic transmission
through cable
and later via radio
, a precursor to mechanical television
. He later became the Director of the Department of Electronic Engineering of University of Tokyo
. He was awarded the Order of Cultural Merits and the Order of Merit of the First Class.
Mechanical television
Mechanical television was a broadcast television system that used mechanical or electromechanical devices to capture and display video images. However, the images themselves were usually transmitted electronically and via radio waves...
through cable
Cable
A cable is two or more wires running side by side and bonded, twisted or braided together to form a single assembly. In mechanics cables, otherwise known as wire ropes, are used for lifting, hauling and towing or conveying force through tension. In electrical engineering cables are used to carry...
and later via radio
Radio
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
, a precursor to mechanical television
Mechanical television
Mechanical television was a broadcast television system that used mechanical or electromechanical devices to capture and display video images. However, the images themselves were usually transmitted electronically and via radio waves...
. He later became the Director of the Department of Electronic Engineering of University of Tokyo
University of Tokyo
, abbreviated as , is a major research university located in Tokyo, Japan. The University has 10 faculties with a total of around 30,000 students, 2,100 of whom are foreign. Its five campuses are in Hongō, Komaba, Kashiwa, Shirokane and Nakano. It is considered to be the most prestigious university...
. He was awarded the Order of Cultural Merits and the Order of Merit of the First Class.