Detecting legacy spoofing in reduced functionality user terminals
CA 2720318 C · Owner: Qualcomm Incorporated · Inventors: Nanda, Sanjiv
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Backward compatibility may require the use of fields or other indicators that are interpreted by new nodes or stations in a system in a manner different from the way legacy nodes interpret those same fields. In some circumstances these indicators may be used to 'spoof' legacy nodes to behave in certain ways to allow a next generation protocol to be performed without interference from those legacy nodes. While this practice is may increase communication effectiveness spoofing may lead to inefficient operation of legacy nodes. Legacy nodes may detect spoofing including detecting field settings in a legacy portion of a transmitted message or detecting phase shifts in a message. Once spoofing …
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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 October 5, 2005 and granted October 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2025.
- 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.