Apparatus for producing and recording video signals
CA 2048095 C · Owner: Sony Corporation · Inventors: Ezaki, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for producing and recording a video signal, which comprises a signal supplying device for picking up images in a picture area with a first or second aspect ratio to supply a first pickup output signal corresponding to the images in the picture area with the first aspect ratio or a second pickup output signal corresponding to the images in the picture area with the second aspect ratio, a signal recording device comprising a signal processing circuit which is caused to be in a first condition for processing the first pickup output signal to produce a first video signal or in a second condition for processing the second pickup output signal to produce a second video signal and a …
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 July 29, 1991 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2013.
- 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.