US 12,355,271 B2
Magnetic field cancellation circuitry
Oliver John Ridler, Cherrybrook (AU)
Assigned to Cochlear Limited, Macquarie University (AU)
Filed by Cochlear Limited, Macquarie University (AU)
Filed on Jan. 30, 2024, as Appl. No. 18/427,595.
Application 18/427,595 is a continuation of application No. 17/757,025, granted, now 11,923,700, previously published as PCT/IB2020/061597, filed on Dec. 7, 2020.
Claims priority of provisional application 62/958,151, filed on Jan. 7, 2020.
Prior Publication US 2024/0171015 A1, May 23, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/70 (2016.01); A61N 1/08 (2006.01); A61N 1/36 (2006.01); H02J 50/10 (2016.01); H04B 5/26 (2024.01); H04B 5/79 (2024.01)
CPC H02J 50/70 (2016.02) [A61N 1/08 (2013.01); A61N 1/36038 (2017.08); H02J 50/10 (2016.02); H04B 5/26 (2024.01); H04B 5/79 (2024.01); H02J 2310/23 (2020.01)] 22 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one first circuit configured to generate and/or receive a first time-varying magnetic field for magnetic induction data transfer to and/or from a device;
at least one second circuit configured to generate a second time-varying magnetic field in response to a time-varying electric current, the second time-varying magnetic field configured to at least partially inhibit degradation of said data transfer from a third time-varying magnetic field; and
at least one third circuit configured to generate the time-varying electric current in response to a received portion of the third time-varying magnetic field or in response to a signal indicative of the third time-varying magnetic field.