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Topic: Color television


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In the News (Wed 22 May 19)

  
  ETF - Early Color TV
In the early 1950s, two competing color TV systems emerged.
A wheel with segments of red, green, and blue rotated in front of the camera, while a similar wheel rotated in front of the television screen, synchronized to the one at the camera.
The first color television sets for this system were sold in 1954.
www.earlytelevision.org /early_color.html   (435 words)

  
  Section 1: Color Television Fundamentals (NTSC)
The main reason is that fl and white television already existed when color television was being developed, and there was a strong desire to come up with a system that remained compatible with the Luminance signal transmission system that millions of existing fl and white television receivers already had.
In fact, greatly reducing color detail is one of the first steps of all MPEG video encoding, a process that discards all but coarse color details in order to reduce the size of the data that is needed to approximately represent the original image.
In the analog NTSC color television receiver, a lot of complexity is there just to receive the I and Q signals from the broadcast signal, and that circuitry has a critical need to maintain a tight synchronization to the timing of the transmitted color signals.
nemesis.lonestar.org /reference/internet/web/color/ntsc_primer.html   (2836 words)

  
 How Things Work - Television   (Site not responding. Last check: 2007-10-31)
Color sets create the impression of full color by mixing the three primary colors of light--blue, green, and red--right there on the inside surface of the picture tube.
A typical color television does this by shining three separate beams of electrons through a mask with holes in it and onto a screen that's covered with tiny phosphor spots.
Because of the way color is encoded in the television signal, the traditional controls are hue and tint, which involve mixtures of red, green, and blue.
howthingswork.virginia.edu /television.html   (5722 words)

  
 THE SET Color Wars!
After halting color TV production in October 1951 to conserve valuable resources for the war effort (as though there were a difference between what went into the booming b&w television manufacturing process and the stillborn noncompatible FCC-approved system), CBS president Frank Stanton pulled the CBS color plug in March 1953.
The early '50s CBS approach was to use a b&w kinescope and put spinning color filters between it and the viewer, with identical primary-color filters spinning in front of a fl and white camera.
To be fair, that color system, had it been given the opportunity to develop into an all-electronic system, would probably still have resulted in the ubiquitous presence of color TV we experience today, and it would have happened much, much sooner.
home.att.net /~pldexnis/potpourri/rca-cbs_color-wars.html   (842 words)

  
 Television Production: Principles of Color
Therefore, in color television only three colors (red, green and blue) are needed to produce the full range of colors in a color TV picture.
Since white is the presence of all colors, the camera's chips or imaging devices respond to pure white as the simultaneous presence of all three colors.
After the color image from the lens activates points on the mosaic that respond to the red, blue, and green points, the CCD electronic circuit is able to separate each of the three colors and send them on their way as three separate electronic signals.
www.cybercollege.com /tvp015.htm   (1982 words)

  
 Television - Wikipedia, the free encyclopedia
Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance.
Color television systems were invented and patented even before fl-and-white television was working; see History of television for details.
In its infancy, television was an ephemeral medium.
en.wikipedia.org /wiki/Color_television   (3597 words)

  
 Tools: Avoiding Color Distortion on Television   (Site not responding. Last check: 2007-10-31)
The most intuitive model of color, HSB defines a color as a combination of: its Hue, the position around a 360 degree color wheel; its Saturation, the "purity" of the color; and its Brightness, the lightness or darkness of the color.
When the technology to create color television became widely available in the early '50s, the larger question was how a color television signal could be broadcast in such a way that fl and white televisions could decode it into a fl and white signal.
A color's saturation is represented as the amplitude (height) of that wave.
developer.msntv.com /tools/avoidcolordist.asp   (1701 words)

  
 ICC characterization data registry
For color to be reproduced in a predictable manner across different devices and materials, it has to be described in a way that is independent of the specific behavior of the mechanisms and materials used to produce it.
Color management is a term that describes a technology that translates the colors of an object (images, graphics or text) from their current color space to the color space of the output devices like monitors, printers,...
Since the image is in a known color space and the profile for that color space would ship with the OS and browser, this enables the end users to enjoy the benefits of color management without the overhead of larger files.
www.color.org /sRGB.html   (6008 words)

  
 The Story of Color Television
Television sets built around it would need to contain a wheel with red, green, and blue color filters, and would need to be very large -- three times the displayed image, or a three-foot wheel for a 12-inch display, plus the motor to drive the wheel.
Despite its flaws, and despite the fact that it was not compatible with fl and white television, CBS's color television technology was declared the national standard by the FCC in October of 1950.
Those who missed the illustrated history and demonstration of RCA's first color television receiving converted HDTV signals from NJN are invited to attend the reception for and dedication of the IEEE Milestone for the invention of monochrome-compatible, electronic color television at the RCA Laboratories on Thursday, November 29, at 4 p.m.
www.princetoninfo.com /200111/11114c01.html   (4611 words)

  
 History of television - Wikipedia, the free encyclopedia
Mechanically scanned color television was demonstrated by Bell Laboratories in June 1929 using three complete systems of photoelectric cells, amplifiers, glow-tubes, and color filters, with a series of mirrors to superimpose the red, green, and blue images into one full color image.
In the electronically scanned era, the first color television demonstration was on February 5, 1940, when RCA privately showed to members of the FCC at the RCA plant in Camden, New Jersey, a television receiver producing images in color by a field sequential color system.
These color systems were not compatible with existing fl and white television sets, and as no color television sets were available to the public at this time, viewership of the color field tests was limited to RCA and CBS engineers and the invited press.
en.wikipedia.org /wiki/History_of_television   (5114 words)

  
 Conventional Analog Television - An Introduction   (Site not responding. Last check: 2007-10-31)
Color perceptions were measured by giving subjects various combinations of the three standard CIE primary colors (435.8 nm, 546.1 nm and 700 nm) and measuring their perceptions.
The "pure" colors lie along the outer locus of the diagram, and the center of the diagram (CIE Illuminant C) is the CIE defined "white".
This is to reduce color errors that occur from amplitude and phase distortion of the color modulation sidebands during transmission.
www.ee.washington.edu /conselec/CE/kuhn/ntsc/95x4.htm   (3782 words)

  
 Color Television Madness
In the CBS color system, conventional interlacing, with alternate fields having odd and even scan lines, was used; in addition, the fields alternated between red, green, and blue, and thus, over six fields, every scan line, both odd and even, was presented in each of the three colors.
But one additional disadvantage of alternating between the directions of the three primary colors for the high-bandwidth portion of the signal is that when the direction of red is used, the conventional high-bandwidth I signal is approximated, but for both blue and green, the low-bandwidth Q signal is closer to the signal transmitted.
Since the horizontal resolution of the color signal is much less than that of the fl and white signal, perhaps the vertical resolution of the color signal could also be half that of the fl and white image.
www.quadibloc.com /science/freq01.htm   (3650 words)

  
 Color Television
The original CBS system used a motor-driven disk with segments in three primary colors – red, blue, and green—which rotated behind the camera lens, filtering the light from the subject so that the colors could pass through in succession.
The receiving unit of this system formed monochrome (fl-and-white) images through the usual cathode-ray tube, but a color wheel similar to the one used on the television camera transformed the images back to their original appearance.
Beams from three electron guns, modulated by the three color signals, scan the elements together in such a way that the beam from the gun using a given color signal strikes the phosphor of the same color.
www.infoplease.com /spot/colortv1.html   (630 words)

  
 Ed Reitan's Color Television History
This information was released to prospective licensees of the CBS field-sequential color television system patent.
RCA began production of the first color television receiver to be manufactured in significant quantities.
Early Field Test, Prototype, and Commercial Color Receivers
www.novia.net /~ereitan   (556 words)

  
 Amazon.com: Coby TF-TV505 5" LCD Color Television: Electronics   (Site not responding. Last check: 2007-10-31)
CONSUMER ALERT: This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009 to receive over-the-air broadcasts with an antenna because of the U.S.'s transition to digital broadcasting.
Living in the DC area about 15 minutes from the White House, I am sure my television signals are as strong as they are going to get anywhere in the country so I am a tad bit shocked that my reception isn't better.
I haven't had to adjust the color settings at all.
www.amazon.com /Coby-TF-TV505-LCD-Color-Television/dp/B000DIM9AS   (2404 words)

  
 Merging Color   (Site not responding. Last check: 2007-10-31)
I understand how color mixing works, but there aren't stage lights or paints inside my television.
Each electron beam is directed by a grid to land on a phosphor of the same color.
When you view these different colored dots from a distance, they add together just like the stage lights.
www.colorado.edu /physics/2000/tv/merging_color.html   (141 words)

  
 Advertising
The final color broadcast using this mechanical spinning wheel system was on October 20, 1951, with the North Carolina-Maryland football game.
There were other color shows listed in the TV Guide for that week, but they were never broadcast.
Color broadcasts were being discretely transmitted for about three hours a week in Chicago throughout 1953, so Zenith could test their equipment and receivers in the field.
www.tvhistory.tv /advertising3.htm   (1113 words)

  
 Color and Color TV   (Site not responding. Last check: 2007-10-31)
Before we begin learning about how a television creates color, we need to talk about how colors interact.
Well, this kind of mixing adds the two colors, and our brain sees the result as a new color, even though the new color isn't actually there.
When I mix yellow and cyan, the yellow absorbs the blue component of light while the cyan absorbs the red part of light, and green is the only thing remaining for me to see.
www.colorado.edu /physics/2000/tv/colortv.html   (305 words)

  
 Color Television history in Wichita, Kansas
As a 14 year old boy I toured this television station in my hometown, and a lifetime love for broadcasting was born.
The sight of KARD's amazing color television camera and space-age master control room were all it took to ignite my aspirations to work in television broadcasting.
It was odd to see a TV personality magically switch from Living Color to drab monochrome as they walked in front of the fl and white cameras, but it was quite common in the 50's and 60's even on NBC network shows.
www.kingoftheroad.net /kard.html   (701 words)

  
 Color Television - Color Television Information and Resources
Color Television Interface Adapter The Color Television Interface Adapter is the graphics chip used in the (Click link for more info and facts about Atari 400) Atari 400 and (Click link for more info...
Color television became available in the U.S. on December 30 of 1953, backed by the Columbia Broadcasting System (CBS) network.
Color television became available in the U.S. on December 30 of 1953, backed by the CBS network.
www.television.televisionacme.com /colortelevision   (993 words)

  
 Color Television history in Wichita, Kansas
As a 14 year old boy I toured this television station in my hometown, and a lifetime love for broadcasting was born.
The sight of KARD's amazing color television camera and space-age master control room were all it took to ignite my aspirations to work in television broadcasting.
It was odd to see a TV personality magically switch from Living Color to drab monochrome as they walked in front of the fl and white cameras, but it was quite common in the 50's and 60's even on NBC network shows.
www.ev1.pair.com /kard.html   (701 words)

  
 Flat Screen TVs, Flat Television, Color Television, Stereo TV, Widescreen HDTV
Discount Offering Flat Screen TVs, Flat Television, Color Television, Stereo TV, Widescreen HDTV by JVC, Sharp, Toshiba, Samsung, Haier, Sansui.
Take this thin color TV with you anywhere and watch your favorite shows anywhere - at home, in your car, or in the yard or park.
Sansui DTV1900 19" Color Digital Television features trilingual OSD, V-Chip parental lock, 120 minute sleep timer, front audio / video input, rear RF input.
www.brilliant-electronics.com /tvs.htm   (277 words)

  
 Ed Reitan's Color Television History
This information was released to prospective licensees of the CBS field-sequential color television system patent.
RCA began production of the first color television receiver to be manufactured in significant quantities.
What happened to famous Radio City Color Test Studio 3-H? Reference to the "New" (second) color mobile unit (first used for the 1954 Rose Parade)
www.oasis.novia.com /~ereitan   (556 words)

  
 Early Television Foundation
The 2007 Early Television Convention will be held on May 4, 5 and 6 at the museum in Hilliard, Ohio.
The Early Television Museum and Foundation depend on donations to fund their operations.
The Early Television Foundation is dedicated to the preservation and restoration of television receiving and camera equipment from the early days of television.
www.earlytelevision.org   (171 words)

  
 NPR : Color TV's 50th Anniversary
The RCA CT-100, introduced in March 1954, was the first mass-produced all-electronic color TV receiver.
Because they were initially too expensive and there was little color programming available, it took more than a decade for color television to become a household fixture.
NPR's Lynn Neary reports on the early days of color TV, and the way today's new technology -- from HDTV to TiVo -- is similarly transforming home entertainment.
www.npr.org /templates/story/story.php?storyId=1789944   (202 words)

  
 Color Television Sets,Multi-function Television,Multi-system Television,Portable Color Televisi
At present, we offer you a limited edition of our TVs.
Very soon we shall be online with a range of color tv, color television set, hdtv, multiregion tvs, multi-system tv, portable color tv, multi-function television, tv vcr combo, digital tv, flat screen television, plasma television, digital television, high-definition television, sony television, toshiba television, panasonic television etc.
29" Color Screen, 69cm Stereo Full Multi-System Color Television
www.voltage-converter-transformers.com /television.html   (191 words)

  
 » Coby TF-TV505 5" LCD Color Television
Comment: This television has a great picture, especially since I'm using it without cable.
I think the picture is good and the sound is as good as it could be on such a small set.
Copyright 2005 Televisions » Reviews and Televisions Buying Guide «.
www.acezero.com /Shop/Coby-TF-TV505-5-LCD-Color-Television/B000DIM9AS   (614 words)

  
 Color Television - Buying Leads for Color Television - Buyers, Importers, Wholesalers, Distributors
Color Television - Buying Leads for Color Television - Buyers, Importers, Wholesalers, Distributors
Start here to find buyers, importers and wholesalers of Color Television around the world.
This member would like to receive quotations from paid members only.
importer.alibaba.com /buyeroffers/Color_Television.html   (372 words)

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