Video color detector and chroma key device and method
CA 1320760 C · Owner: Corporate Communications Consultants, Inc. · Inventors: Belmares-Sarabia, Armand; Chayka, Stanley J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The color detector circuit can be adjusted with essentially infinite variability to cause it to detect virtually any color in the visible spectrum and to define a, narrow passband or range of colors which the device will transmit. The device can be used to provide accurate color key signals with a variable passband in chroma key equipment. The device can be used to provide multiple chroma key signals for a single picture frame. A color correction system using the chroma key device also is shown.
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
- Granted July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
- 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.