Automatic luminance channel bandwidth control apparatus responsive to the amplitude of color image information
CA 1048633 A · Owner: Rca Corporation · Inventors: Harwood, Leopold A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the INVENTION, In a television signal processing system including, separate channels for processing luminance and chrominance signal portions of a composite video signal apparatus is, provided for automatically varying the bandwidth of the luminance channel in accordance with the amplitude of color information signals. In an illustrated arrangement apparatus for, controlling the bandwidth of the luminance channel is coupled to a color demodulator circuit which is included in the chrominance channel for generating, for example R-Y, G-Y, and B-Y color difference signals. The bandwidth of the luminance channel is controlled to vary in inverse relationship to the amplitude of the …
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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 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 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.
Timeline
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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.