Wireless communication network with extended coverage range
CA 2611775 C · Owner: Qualcomm Incorporated · Inventors: Wallace, Mark S.; Walton, Jay Rodney
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless communication network supports 802.11b/g and a range extension mode, which supports at least one data rate lower than the lowest data rate in 802.11b/g. A transmitting station (which may be an access point or a user terminal) includes first and second processors. The first processor performs differential modulation and spectral spreading for a first set of at least one data rate (e.g. 1 and 2 Mbps) supported by 802.11b/g. The second processor performs forward error correction (FEC) encoding symbol mapping, and spectral , spreading for a second set of at least one data rate (e.g. 250 500, and 1000 , Kbps) supported by the range extension mode. The transmitting station can …
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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 June 16, 2006 and granted October 16, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.