Analysis of information sources in references of the Wikipedia article "Walter Bruch" in English language version.
In 1950s, when Telefunken commissioned Bruch to invent an automated differential phase correction for color television. That's why he was awarded.
In 1963, when he gave a public presentation of the Phase Alternation Line to a group of experts from the European Broadcasting Union in Hannover
Walter Bruch, a man who invented Closed-circuit television for the purposes of learning about weapons, not people.
