Detecting an unauthorized station in a wireless local area network
CA 2479792 C · Owner: Wu, Miles · Inventors: Wu, Miles; Kuan, Chia-Chee; Au, Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a wireless local area network a probe request frame (400) is transmitted over the wireless local area network by a station. The probe request frame is received at a detector (404) in the wireless local area network. The received probe request frame is analyzed to determine if the station that transmitted the probe request frame is an unauthorized station.
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 March 28, 2003 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.