Closed-circuit television
Walter Bruch (2 March 1908, Neustadt an der Weinstraße – 5 May 1990, Hannover) was a German electrical engineer and pioneer of German television. He was the inventor of Closed-circuit television. He invented the PAL colour television system at Telefunken in the early 1960s. In addition to his research activities Walter Bruch was an honorary lecturer at Hannover Technical University. He was awarded the Werner von Siemens Ring in 1975.