Method and device for establishing a wireless communication between vehicles and communication equipment erected along the road
CA 2289920 A1 · Owner: Smartmove, Naamloze Vennootschap · Inventors: Buytaert, Steven Herwig Cyriel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for establishing a wireless communication between vehicles and communication equipment erected along the road in particular a communication , (2) between one or several modules (6) provided to the respective vehicles (3) and communication equipment (5) along the road (4) characterized in that use , is made for the communication (2) of the "direct sequence spread spectrum" principle, also called the "direct access broad spectrum" principle whereby , several modules (6) of such vehicles (3) can simultaneously communicate with the above-mentioned communication equipment (5) on one and the same frequency band, and whereby each communicating module (6) is distinguished from 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 May 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.