Apparatus for generating an image from a digital video signal
CA 1313703 C · Owner: Goldman, Craig Edward · Inventors: Smith, John Jacobs; Riseman, John Hugh; Goldman, Craig Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for generating a high quality image from à dlgital viaeo signal incluàes a system for gamma cc,rrecting the digital video signal with a digital look up talble ana for converting the resultant digital signal to an analog viàeo signal. Another circuit generates a triangular wave reierence pattern signal and a comparator compares the analog video signal with the triangular wave reference pattern signal to form a pulse-width-modulated signal. A raster scanning print engine producing for, example, a laser beam, scans over a recording medium in accordance with the pulse-width-modulated signal thereby, forming an image of high quality on the recording medium of a print engine. This …
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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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- 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.