Image signal processing apparatus
CA 2003532 C · Owner: Hamada, Masanori · Inventors: Morita, Katsumi; Isobe, Mitsuo; Hamada, Masanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image signal processing apparatus for processing an MUSE signal or an NTSC signal comprises frame delay means; movement detection means for detecting the movement of an image on the basis of the difference signals in one frame interval and two frame interval of image signals which are supplied from said frame delay means and relatively different in their time; moving picture processing means for providing a first image signal for a moving picture part of a field of the image in issue; still image processing means for providing a second image signal for a still image part using the image signals of plural frames; and mixing means for mixing outputs from said moving picture processing …
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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
- Filed November 21, 1989 and granted May 10, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.