Method and apparatus for subject monitoring

申请公布号：AU5455199(A)

申请号：AU19990054551

申请日期：1999.09.01

申请公布日期：2000.03.27

申请人：

MED-DEV LIMITED

发明人：ARNIM LITTEK;CELESTE SABRA LITTEK

分类号：A61B5/0205;A61B5/103;H01L41/113

主分类号：A61B5/0205

摘要：A method of monitoring a subject (7) in a vehicle seat (6), the method including: a) acquiring a target signal from the subject with a piezoelectric transducer (1) provided in or on the vehicle seat; b) processing the target signal to extract a cardiac signal (24) and/or a respiratory signal (25); and c) outputting the cardiac and/or respiratory signal. A method of monitoring a subject including: a) acquiring a target signal from the subject; b) bandpass filtering (27) the target signal in accordance with a set of cardiac filter coefficients to extract a cardiac signal (24); c) bandpass filtering (30) the target signal in accordance with a set of respiratory filter coefficients to extract a respiratory signal (25); d) adapting (29, 33) the set of cardiac filter coefficients so as to reduce artefacts in the cardiac signal; e) adapting (50, 32) the set of respiratory filter coefficients so as to reduce artefacts in the respiratory signal; and f) outputting the cardiac and respiratory signal signals.

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