Picture replacement system, picture replacement device and picture replacement method
CA 2200168 A1 · Owner: Nippon Television Network Corporation · Inventors: Ishida, Masayuki; Koguma, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A picture replacement system for replacing a specified area of a present picture with a desired picture comprising: at least one camera; picture generation means for generating a desired picture for replacing; selection means for selecting a replacement area within a reference picture in advance and storing a position of the replacement area and a reference picture within the replacement area; detection means for detecting a replacement area within a present picture taken by the camera based on the position of the replacement area and the reference picture within the replacement area; key signal generation means for generating a key signal indicating an identical part of a present picture …
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 March 17, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2019.
- 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.