Digital video signal processor apparatus with preprocessor for generating non-interlace-scan video signals from interlace-scan video signals
CA 2136608 C · Owner: Uz, Kamil Metin · Inventors: Uz, Kamil Metin; Wine, Charles Martin; Reitmeier, Glenn Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preprocessor for conditioning interlace-scan video signals for frame based compression, includes apparatus (40) to accept fields of interlace-scanned video and provide fields of interlace-scanned luminance and chrominance component signals. The fields of interlace-scanned luminance component are combined (45) into respective frames of luminance signal and applied to compressor apparatus for further processing. The fields of interlace scanned chrominance components are independently processed (41,42) at the field level to generate lines of chrominance values which are interstitial to the lines of the original chrominance values and at a lesser pixel and line density. The independently …
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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
- Filed March 15, 1993 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2015.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.