Frequency packing for dynamic frequency allocation in a radiocommunication system
CA 2278629 A1 · Owner: Karlsson, Patrick · Inventors: Sandegren, Per-Arne; Karlsson, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a telecommunications network, a method and apparatus for allocating channels include making signal quality measurements for channels that are in use or available for use and for channels that may become available for use. Spectral efficiency is enhanced by considering the exclusionary bandwidths associated with combiner filters tuned to currently allocated frequencies.
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 January 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 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.