Method and apparatus for acquiring service in a "border area" of a wireless communications system
CA 2380467 A1 · Owner: Qualcomm Incorporated · Inventors: Ault, Jan C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and computer program product for acquiring service in a border area that is serviced by two communications systems that share the same frequencies. The method includes the steps of scanning a predetermined range of control (206) channels in order to determine (208) the first and second strongest control channels. A determination is then made as to whether a first system identification code (SID) associated with a signal received over the strongest control channel is acceptable (236). This can be accomplished for , example, by comparing the first SID to a list of acceptable SIDs. Conventionally, if the SID associated with a signal received over the strongest control channel …
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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 July 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 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
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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.