Wireless location system
CA 2307532 A1 · Owner: Cell-Loc Inc. · Inventors: Chow, Mable M.C.; Fattouche, Michel T.; Oler, Kevin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless location system uses a statistical approach in which a probability, distribution is trained that relates reliable observations of a signal parameter to a, known measure of location. The probability distribution is then used to locate a, mobile transmitter when addition observations are available. Various precise wireless, location techniques may be used to train the distribution or may be used alone to, locate the mobile transmitter. In one wireless location technique a wireless , location, algorithm uses weighted observations where the observations are weighted with received signal strength.
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 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2022.
- 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.