Method for detection of a shielding fault in a multiwire cable
CA 2444361 C · Owner: Gambardella, Eddie · Inventors: Flourens, Franck; Gambardella, Eddie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method for detection of a shielding fault in a multiwire cable forming part of a communication network during functional operation of the said network the said cable (10) transferring a multiframe signal S(t) which comprises the following steps: - a disturbing signal I(t) is injected into the said cable through an injection clamp (14) for a determined time T - when an item of equipment (12) receives the signal S(t) the number N of frames in fault during the injection period of the disturbing signal I(t) is counted - it is decided that there is a shielding fault in this cable if N/T <= TEP max where TEP max is the maximum packet error rate to be guaranteed.
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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 9, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 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.