Electronic imaging apparatus and method
CA 1293881 C · Owner: Polaroid Corporation · Inventors: Clark, Peter P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic imaging system includes an optical system for imaging radiation from a scene onto the image sensing surface of an imaging device for a selected sample period. The imaging device may take the form of a two dimensional array of photoresponsive areas having a device specific upper spatial frequency limit. In order to eliminate alias signal components in the output video signal caused by spatial frequency components in the scene radiation greater than the Nyquist spatial frequency of the device the optical, system is designed to have a spatial frequency limit no higher than the Nyquist frequency of the imaging device and thus functions as a low pass optical filter. The spatial …
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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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.