The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2003
Filed:
Jun. 04, 2001
Amim Littek, Wellington, NZ;
Celeste Sabra Littek, Wellington, NZ;
Med-Dev Limited, , NZ;
Abstract
A method of monitoring a subject ( ) in a vehicle seat ( ), the method including: a) acquiring a target signal from the subject with a piezoelectric transducer ( ) provided in or on the vehicle seat; b) processing the target signal to extract a cardiac signal ( ) and/or a respiratory signal ( ); 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 ( ) the target signal in accordance with a set of cardiac filter coefficients to extract a cardiac signal ( ); c) bandpass filtering ( ) the target signal in accordance with a set of respiratory filter coefficients to extract a respiratory signal ( ); d) adapting ( ) the set of cardiac filter coefficients so as to reduce artefacts in the cardiac signal; e) adapting ( ) the set of respiratory filter coefficients so as to reduce artefacts in the respiratory signal; and f) outputting the cardiac and respiratory signal signals.