Television signal processing system for reducing diagonal image artifacts
CA 1332002 C · Owner: Smith, Terrence Raymond · Inventors: Fuhrer, Jack Selig; Smith, Terrence Raymond; Isnardi, Michael Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus is disclosed for reducing unwanted jagged diagonal artifacts in a video signal. At an encoder, moving image information is intraframe averaged over a given frequency range, e.g. above 1.5 MHz while, still image information is subjected to a field repeat process over a given frequency range. At a decoder still, image information is subjected to a frame repeat process over the given field repeat frequency range while moving, image information is left unchanged.
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 September 13, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 13, 2011.
- 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.