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Method of reducing ultrasound signal ambiguity during fetal monitoring

  • US 9,107,584 B2
  • Filed: 07/29/2011
  • Issued: 08/18/2015
  • Est. Priority Date: 08/02/2010
  • Status: Active Grant
First Claim
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1. A method of fetal cardiac monitoring, comprising the steps of:

  • a) receiving an ultrasound signal reflected by a fetus;

    b) demodulating the signal received in at least one time window with a specific duration;

    c) assessing whether at least one time window contains more than one periodic signal; and

    d) reducing the duration of at least one time window in the case of more than one assessed periodic signal to generate an adapted time window;

    wherein steps a) to d) are repeated until step c) assesses the adapted time window to have only one periodic signal.

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