Convergence control system for multiple vertical formats
CA 2039143 C · Owner: Chauvin, Jacques · Inventors: Chauvin, Jacques; Gleim, Gunter; Rodriquez-Cavazos, Enrique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A convergence control system for multiple vertical modes or formats, having respective rasters with different vertical heights, comprises a selector (4) for initiating operation in one of the available vertical modes and a, circuit (40) for generating convergence correction signals responsive to the selector. The correction signals are generated from known convergence correction values and by interpolation of the known values. The convergence correction values may be stored and sequentially processed by digital circuits and the interpolation may be undertaken by analog circuits. The circuit for generating convergence correction signals may comprise a digital data store (46) for different …
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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 August 22, 1990 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2012.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.