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Method for communicating a magnetic resonance signal, and reception arrangement and magnetic resonance system operable in accord therewith

  • US 6,906,520 B2
  • Filed: 05/02/2003
  • Issued: 06/14/2005
  • Est. Priority Date: 05/02/2002
  • Status: Expired due to Fees
First Claim
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1. A method for communicating a magnetic resonance signal from a magnetic resonance reception antenna to an evaluation device, comprising the steps of:

  • receiving a magnetic resonance signal with a magnetic resonance reception antenna at a magnetic resonance frequency;

    supplying said magnetic resonance signal from said magnetic resonance reception antenna, without amplification, to a parametric up-converter having non-linear reactance;

    emitting auxiliary energy from an auxiliary transmission antenna at an auxiliary frequency;

    receiving a part of said auxiliary energy with an auxiliary reception antenna;

    supplying a signal representing said auxiliary energy at said auxiliary frequency from said auxiliary reception antenna to said parametric up-converter without amplification;

    in said parametric up-converter, using said non-linear reactance, to amplify and mix said signal representing said auxiliary energy and said magnetic resonance signal to form a mixed signal having a mixed frequency equal to a sum of said magnetic resonance frequency and said auxiliary frequency;

    supplying said mixed signal from said parametric up-converter to a mixed signal transmission antenna without amplification between said parametric up-converter and said mixed signal transmitter antenna, and emitting said mixed signal from said mixed signal transmission antenna; and

    receiving at least a part of said mixed signal with a mixed signal reception antenna and supplying said mixed signal from said mixed signal reception antenna to an evaluation device.

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