Jacob K.'s List: 2jake Engineering Research

• In the 1920's, John Logie Baird patented the idea of using arrays of transparent rods to transmit images for television
• Charles Jenkins invented a mechanical television system called radiovision and claimed to have transmitted the earliest moving silhouette images on June 14, 1923.
• German scientist, Karl Braun invented the cathode ray tube oscilloscope (CRT) in 1897.
• Russian inventor, Vladimir Zworykin invented an improved cathode-ray tube called the kinescope in 1929.
• In 1927, Philo Farnsworth was the first inventor to transmit a television image comprised of 60 horizontal lines
• The image transmitted was a
• dollar sign.
• He filed for his first television patent in 1927 (#1,773,980).
• The patent was issued to Louis Parker in 1948.

•  Marvin Middlemark invented "rabbit ears", the "V" shaped TV antennae
• CATV, was born in
• the mountains of Pennsylvania in the late 1940's

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• Paul Gottlieb Nipkow, a student in Germany, developed the first ever mechanical  module of television
• A.A. Campbell-Swinton from England and Russian scientist Boris Rosing, used the  cathode ray tube in addition to the mechanical scanner system, to create a new  television system.
• 1931, his Radiovisor Model 100 was being sold
• John Logie Baird, was the first person to have succeeded in transmitting moving  pictures
• started the first ever TV studio.
• Philo Taylor Farnsworth
• was able to invent a working model of electronic television that was based on  Swinton’s ideas
• the television system which is the basis of all modern TVs.

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• late 1800s when Willoughby Smith
• discovered the properties of photo
• conductivity within Selenium
• Scanning
• disks were then created by Paul
• Niphow in 1884
• Braun tubes, predecessors to the cathode ray tubes, were used by Boris Rosing  and his students in 1911 to transmit still images over electric wires
• 1925, Baird was able to transmit moving gray-scaled images and demonstrated this  to the public in London
• 927
• . Baird's first broadcast over the atlantic occurred in 1928, transmitting a  signal from London to New York, via a ship
• Charles Jenkins showcased silhouette images in motion
• In 1927, Philo Farnsworth's camera tube was able to transmit its imagery in a  straight line. By the following year, he was using motion pictures to showcase  the technology
• Farnsworth successfully demonstrated the first all-electron television in 1934  at the Franklin Institute
• By 1944, Baird began demonstrating a color television display with over 600  lines
• Bell Laboratories used three separate systems of electric cells to create the  reds, greens and blues to create a single color image
• 1940, RCA showed the FCC their first color television. By the 1940s, CBS began  experimenting with different color schemes and techniques for its live  broadcasts. CBS used discs made of red, blue and green filters spinning into the  camera and another disc inside its CRT-based receiver to capture the imagery.  NBC began broadcasting color field tests in 1941.

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• The disk had a spiral of holes bored into it. When the disk rotated, the holes  would sweep over the whole image from top to bottom, slicing the image into 18  columns of information. Behind the disk were selenium photocells, which reacted  to the light passing through the disk. The light from each of the 18 slices was  converted to a varying electric signal in the photocell, and that signal was  then transmitted to a distant receiver. At the receiver, incoming information  was reassembled into a crude picture