Synchronisation method in a telecommunication system
CA 2320879 A1 · Owner: Lejay, Frederic · Inventors: Boulnois, Frederic; Desblancs, Philippe; Lejay, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for determining the initial position of frames from a fixed base said fixed base transmitting a time division multiple access (TDMA) radio signal at a specific frequency in time intervals in a located geographical zone for communicating with a mobile station located in the same geographical zone using definition rules of specific shifts for faster determination of the start of the frames.
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 December 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2021.
- 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.