Reference mark, method for recognizing reference marks and method for object measuring
CA 2295222 A1 · Owner: Michaelis, Martin · Inventors: Caesar, Torsten; Michaelis, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a reference mark a method for recognizing reference , marks and a method for object measuring. According to the invention the , object is fitted with coded reference marks. Said marks are automatically recognized and decoded by the inventive method for reference mark recognition whereupon a three-dimensional representation of the object is realized. According to the invention, the method compensates automatically for geometrical and radiometric interferences and generates at least one quality measurement to evaluate the quality of recognition and decoding. The invention particularly enables fast recognition and decoding of large numbers of reference marks and …
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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 June 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2020.
- 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.