Method and system for photodetector signal correction
CA 2102525 C · Owner: On-Line Technologies, Inc. · Inventors: Brouillette, Carl R.; Hamblen, David G.; Carangelo, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A corrective factor is applied so as to remove anomalous features from the signal generated by a photoconductive detector (10), and to thereby render the output signal highly linear with respect to the energy of incident time-varying radiation. The, corrective factor may be applied through the use of either digital electronic data processing means or analog circuitry or through a, combination of those effects.
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 May 7, 1992 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2014.
- 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.