Hue correction circuit
CA 1099400 A · Owner: Sony Corporation · Inventors: Sanada, Seiji; Isono, Katsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a color video display device such as a, television receiver or a monitor associated with a color video tape recording and reproducing apparatus and which is responsive, to a composite color video signal including a luminance component and a chrominance component containing a chrominance signal a, burst signal and a chrominance reference portion of a vertical interval reference (VIR) signal; a hue-correction circuit is provided for dynamic correction of chrominance phase errors. The hue correction circuit includes a phase comparator that provides an output in response to the phase difference between the burst signal and the chrominance reference portion of the VIR signal an oscillator for …
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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 April 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 14, 1998.
- 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.