US Patent 10034631 Vehicle seating system with seat occupant vital sign monitoring

A vehicle seating system includes a vehicle seat, piezoelectric sensors individually positioned at respective locations within the seat corresponding to anatomical locations of a person sitting in the seat, and a controller. The sensors to generate electrical signals in response to mechanical stress applied on the sensors from biologically motivated force inputs of the person. The controller to detect from the electrical signals generated by the sensors biometric information of the person corresponding to the biologically motivated force inputs of the person.