Printing method and apparatus for facsimile
CA 2115492 C · Owner: Vegeais, Patrick · Inventors: Vegeais, Patrick; Frederic, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises a light source generally a, laser diode, providing a beam that is modulated by an input signal and is controlled for scanning at a rate, fixed by a clock, along a generatrix line of a photosensitive drum which is rotated by a motor: it further includes a memory for storing input data representing successive pixels of all lines in a page which were scanned for transmission, and a computer for determining the length to be reproduced of the transmitted document and for determining, the width, necessary to avoid truncating the information contained in any of the scan lines, in the width direction. The computer calculates the minimum vertical reduction ratio Rv and the …
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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 February 11, 1994 and granted July 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2016.
- 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
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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.