Magnetic induction signal repeater

  • US 8,457,547 B2
  • Filed: 04/28/2009
  • Issued: 06/04/2013
  • Est. Priority Date: 04/28/2008
  • Status: Active Grant
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First Claim
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1. A magnetic induction (MI) repeater comprising:

  • first and second coils configured to have the same resonance frequency and to be substantially isolated from one another; and

    an amplifier connected to the first and second coils and configured to receive a signal induced in the first coil by a first magnetic field and output, via the second coil, a second magnetic field based on the signal,wherein the second magnetic field is amplified relative to the first magnetic field.

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