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Method and apparatus for discriminating between electromagnetic interference signals and electromedical scanning signals, particularly of cardiological implants



Method and apparatus for discriminating between electromagnetic interference signals and electromedical scanning signals, particularly of cardiological implants



Official Gazette of the United States Patent and Trademark Office Patents 1260(3)



A method for discriminating between externally-radiated, electromagnetic interference signals and electromedical scanning signals comprises the following steps: the preamplification of the scanning signals by means of two preamplifiers; the comparison of the preamplified scanning signals by a comparator; the phase-sensitive evaluation of the comparator output signal for differentiating between scanning signals and interference signals; the feedback of the comparator output signal to the amplification control of the preamplifiers such that the comparator output signal is minimized when an interference signal is detected.

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Accession: 035288172

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