Apparatus for discriminating a moving region and a stationary region in a video signal
CA 1287161 C · Owner: Nec Corporation · Inventors: Furukawa, Akihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is an apparatus for discriminating between a moving region and a stationary region in a video signal correctly. It includes a delay circuit for delaying an input video signal a circuit for calculating the, difference between brightness amplitude values of each of different picture elements at spatially corresponding positions between the delayed video signal and the input video signal and a circuit for computing a first value of each of a number of blocks in response to the difference. The blocks are previously designated on a picture screen. The moving region or the stationary region for each block is determined by taking the correlation of the first values of the blocks …
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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
- Granted July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
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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.