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Expired Canadian patentCanada

Processing apparatus and method for color video signals

CA 1049136 A · Owner: Eastman Kodak Company · Inventors: Granger, Edward M.

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Abstract From the Canadian patent

An information processing method and apparatus which is adapted to use, for example, in the recording of color image information, calls for sampling a set of basic colors (e.g. green, red, and blue) at rates which are proportioned according to the resolving power of the human visual system respective of color, and arranging the resulting samples to produce a sequential video signal. In one implementation, green, red, and blue color image information is sampled at respective rates decreasing progressively from green to red to blue in producing a sequential signal which is recorded, and on playback a luminance signal for say, a, television display is derived from the sequential signal based …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 20, 1979
Term endedFebruary 20, 1996
Patent numberCA 1049136 A
Classification (IPC)H04N5/76 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 20, 1979Term endedFeb 20, 1996

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.