Method and system of handoff
CA 2536314 C · Owner: Bell Mobility Inc. · Inventors: Lanoue, Martin; Gauthier, Dominique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a novel method and system for effecting CDMA handoff transitions. In an embodiment, a converter is provided that converts a conventional CDMA trigger signal at a first frequency into the same handoff trigger signal but at second frequency. Where a subscriber station is operating in a coverage area at the second frequency the received CDMA re-, direction signal can be used to trigger the handoff of the subscriber station from the second frequency to the first frequency.
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 August 16, 2004 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 16, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2026.
- 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.