MMC 2604 Chapter Notes - Chapter 5: Audience Measurement, Barbara Walters, Electronic Publishing

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10/1/13: the origins and development of television, early innovations in tv technology. In the late 1800s, the invention of the cathode ray tube, the forerunner of the tv picture tube, combined principles of the camera and electricity. In the 1880s, german inventor paul nipkow developed the scanning disk, a large flat metal disk with a series of small perforations organized in a spiral pattern. The story of television"s invention included a complex patents battle between inventors vladimir zworykin and philo farnsworth. In 1923, zworykin invented the iconoscope, the first tv camera tube to convert light rays into electrical signals, and he received a patent for it in 1928. In 1927, farnsworth transmitted the first electronic tv picture: he rotated a straight line scratched on a square of painted glass by 90 degrees. In 1930, farnsworth received a patent for the first electronic television. In 1941 the fcc adopted an analog standard for all u. s.

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