Patent ID: 7052469

Claim:
A heart beat/respiration measuring device comprising: a mat; a sensor ( 2 ) disposed in a recess in said mat and adapted to be pressed against a human body as the human body lies on said mat; and a measuring circuit for measuring heart beats and/or respiration from the output of the sensor ( 2 ), the sensor ( 2 ) comprising a coil member comprising a wire wound around an elastic member having a hollow portion and being elastically restorably deformable with subjected to pressure by being pressed against the human body, and the measuring circuit comprising an LC oscillation circuit ( 3 ) wherein an inductance component and a capacitance component of the coil member serve respectively as a coil L and a capacitor C for oscillation, and a calculation processing circuit ( 4 ) for detecting variations in the oscillation frequency of the LC oscillation circuit ( 3 ) and calculating physiological data in accordance with heart beats and/or respiration based on the frequency component or components of heart beats and/or respiration included in the variations.