Handoff method in wireless lan, and access point and mobile station performing handoff method
CA 2449530 C · Owner: Choi, Hyong-Uk · Inventors: Choi, Hyong-Uk; Kim, Jun-Hwan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A handoff method for a mobile station in a wireless local area network the handoff method includes outputting a handoff alert message to a present access point receiving a response message from the present access point the response message including channel information on access point in an extended service set and scanning channels by using the channel information to select a new access point.
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 November 14, 2003 and granted October 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2025.
- 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.