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Ultra wide band wireless radio transmission in MRI systems involving channel estimation

  • US 8,093,900 B2
  • Filed: 05/09/2007
  • Issued: 01/10/2012
  • Est. Priority Date: 05/25/2006
  • Status: Active Grant
First Claim
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1. A magnetic resonance system comprising:

  • at least one radio frequency coil assembly disposed within an examination region, with each radio frequency coil assembly being located within the examination region;

    at least one coil element which at least receives magnetic resonance signals from a subject in the examination region,an on-board analog to digital converter which digitizes the coil magnetic resonance signals,an on-board receiver which wirelessly receives a spread spectrum calibration signals from a wireless transceiver;

    an on-board transmitter which wirelessly transmits the digitized magnetic resonance signals on the multiple channels transceiver on multiple channels at different frequencies in spread spectrum data signals to the wireless transceiver,an on-board channel estimator which estimates relative signal strength characteristics on the multiple channels of the spread spectrum based on the received calibration signal from the wireless transceiver andan on-board signal strength adjuster which adjusts strengths the data signals based on the signal characteristics of the calibration signal received by the on-board receiver.

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