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Evolution of the Evolution of the television television

Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

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Page 1: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

Evolution of the televisionEvolution of the television

Page 2: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

The first televisionThe first television

Philo Farnsworth invented the television tube when he Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for the was only 14. RCA and David Sarnoff sued him for the patent, lost, then won it back taking the credit. patent, lost, then won it back taking the credit.

The first television cost around $55The first television cost around $55

Around 1907 the first television was thought up.Around 1907 the first television was thought up.

Page 3: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

1924/25 First Moving Silhouette 1924/25 First Moving Silhouette Images Images

American Charles Jenkins and John Baird from American Charles Jenkins and John Baird from Scotland, each demonstrate the mechanical Scotland, each demonstrate the mechanical transmissions of images over wire circuits. transmissions of images over wire circuits.

Radiovisor was a mechanical scanning-drum device Radiovisor was a mechanical scanning-drum device manufactured by the Jenkins Television Corporation. It manufactured by the Jenkins Television Corporation. It had a special attachment for receiving pictures, a cloudy had a special attachment for receiving pictures, a cloudy 40 to 48 line image projected onto a six-inch square 40 to 48 line image projected onto a six-inch square mirror. mirror.

Page 4: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

Cathode Ray Tube TelevisionCathode Ray Tube Television

The development of electronic television systems was The development of electronic television systems was based on the development of the cathode ray tube. A based on the development of the cathode ray tube. A cathode ray tube (aka picture tube), was found in all cathode ray tube (aka picture tube), was found in all electronic television sets up until the invention of the less electronic television sets up until the invention of the less

bulky LCD screensbulky LCD screens. . CRT’s are very bulky and are not in many households CRT’s are very bulky and are not in many households today. Some are even cxonsidered collectors itemstoday. Some are even cxonsidered collectors items

Page 5: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

Allen B. Du MontAllen B. Du Mont

The first commercially sold television was the set made The first commercially sold television was the set made by Allen B. Du Montby Allen B. Du Mont

It began operation in the United States in 1946It began operation in the United States in 1946

Although NBC was known to have station-to-station links Although NBC was known to have station-to-station links as early as 1941, Du Mont received its station licenses as early as 1941, Du Mont received its station licenses before NBC resumed in the postwar era their previous, before NBC resumed in the postwar era their previous,

sporadic network broadcasts.sporadic network broadcasts.

Page 6: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

First color televisionFirst color television

In 1940, prior to RCA, CBS researchers led by Peter Goldmark In 1940, prior to RCA, CBS researchers led by Peter Goldmark invented a mechanical color television system based on the 1928 invented a mechanical color television system based on the 1928 designs of John Bairddesigns of John Baird

Between 1946 and 1950 the research staff of RCA Laboratories Between 1946 and 1950 the research staff of RCA Laboratories invented the world's first electronic, monochrome compatible, color invented the world's first electronic, monochrome compatible, color television system television system

Color television production was halted during the Korean war, with Color television production was halted during the Korean war, with that and the lawsuits, and the sluggish sales, the CBS system failed. that and the lawsuits, and the sluggish sales, the CBS system failed.

Those factors provided RCA with the time to design a better color Those factors provided RCA with the time to design a better color television, which they based on the 1947 patent application of Alfred television, which they based on the 1947 patent application of Alfred Schroeder, for a shadow mask CRT Schroeder, for a shadow mask CRT

Soon following in 1953 the second color tv was releasedSoon following in 1953 the second color tv was released

Page 7: Evolution of the television. The first television Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for

Year of 1960’s for the televisionYear of 1960’s for the television-The All Channel Receiver Act requires that UHF tuners (channels 14 to 83) be included in all sets. -AT&T launches Telstar, the first satellite to carry TV broadcasts - broadcasts are now internationally relayed -1967-Most TV broadcasts are in color. -1969, July 20, first TV transmission from the moon and 600 million people watch.