Television projection system
CA 2115728 C · Owner: Schneider Elektronik Rundfunkwerk Gmbh · Inventors: Loffler, Dirk; Deter, Christhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A television projection system for generating picture points of a television picture has at least three light sources which may be controlled in intensity for light signals (RL' GL', BL'), of different wavelengths, wherein the hue of each picture point is fixed by means of color value signals (R G, B) in a first, base system which may be represented in a CIE diagram by corner points of a hue region (440) which are defined via wavelengths of screen phosphors. The wavelengths of the light signals determine a second base system which shares a common range of hues with the first base system. Further, an input circuit is provided for generating at least three electrical signals which are …
Read the whole patent
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 February 15, 1994 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2016.
- 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.