Device and method for low-frequency magnetic field compensation in an inductive signal coupling unit
CA 2489329 A1 · Owner: Poveda Lerma, Antonio · Inventors: Blasco Claret, Jorge Vicente; Poveda Lerma, Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device and method for low-frequency magnetic field compensation in an inductive signal coupling unit.According to the invention the coupling unit comprises a ferromagnetic core (30) which surrounds a conductor through which a low-frequency current (1) flows in order to inject , a high-frequency signal therein. The invention is characterised in that it consists in detecting the current (1) flowing through the conductor or the magnetic field (3) generated in the coupling unit producing a supply current , from the value obtained during the aforementioned detection process and injecting the supply current produced in the coupling unit via a low pass filter (9), …
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 June 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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.