Controller for adjusting color hue and saturation of images generated from signals in a non-broadcasting video system
CA 1298397 C · Owner: Eckenbrecht, Robert R. · Inventors: Eckenbrecht, Robert R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A color tint controller for a, closed-circuit video system receives red and blue color difference signals and selectively changes the amplitudes of these signals to adjust the color of a displayed image. This is accomplished by changing the levels of the red color difference signals in a first direction, and changing the levels of the blue color difference signals in a second opposite direction, and then adding these changed signals to generate an adjusted red difference signal which is fed into a RGB matrix. At the same time the levels of the blue, difference signals are changed in the first direction and the levels of the red color difference signals are changed in the second direction, …
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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 March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.