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History - shortly Lˇ. Maceková TU in Košice, 2017.

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Presentation on theme: "History - shortly Lˇ. Maceková TU in Košice, 2017."— Presentation transcript:

1 History - shortly Lˇ. Maceková TU in Košice, 2017

2 1923 – first experimets with TV broadcasting in USA (Russia/USA engineer Vladimir Zworykin – exhibition and patent of tube TV broadcast and receiving system) 1931 – first experimental TV broadcasting station / USA 1939 – mass production of TV receivers; TV transmission from world exposition in New York for hundreds of viewers (F. D. Roosevelt opening speech) 1941 – NTSC standard approved (525 raws, 30 frames per second);, the first TV commercial advertisment from WNBT tv- station, NY. ... the 2-nd world war  - stop of TV research and development 1945 – revival of Development (not only of weaponry) 1946 – 6400 TV receivers in USA - arising of new TV stations and transmitters (broadcasters/ TV licence owners)  frequency spectrum dividing policy – mutual non disturbing frequency bands, TV signal covering the world surfaces ... 1962 – 58 million of TV receivers in USA (households, hotels, ...)

3

4 - self study needed

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