Method and apparatus to limit frequency bands used by a low power radio frequency device
CA 2386435 A1 · Owner: Nokia Corporation · Inventors: Halminen, Harri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and corresponding apparatus for use by a low power radio frequency (LPRF) device intended to communicate with other LPRF devices on an LPRF band when both the LPRF band location and its width can vary by country the , invention for determining in what country the LPRF device is being used and , so the band and bandwidth that should be used and for ensuring that the LPRF , does not communicate on an LPRF band that is not likely the correct band or , is not a band indicated by a user. The invention assesses clues to determine if any particular country is reasonably likely to be the country where the device is being used, and if no such country is determined and if a user , …
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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 October 9, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 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.