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US 2004/0111039 A1Published application
Heart beat/respiration measuring device
AssigneeSanyo Electric Co., Ltd.
InventorsTakeshi MINAMIURA, Hidetaka SAKAI, Akira SAKAGUCHI
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AssigneeSanyo Electric Co., Ltd.
InventorsTakeshi MINAMIURA, Hidetaka SAKAI, Akira SAKAGUCHI
Estimating the term…
The invention provides a heart beat/respiration measuring device comprising a sensor 2 to be pressed by the human body, and a measuring circuit for measuring heart beats and respiration from the output of the sensor 2. The sensor 2 comprises a coil member elastically deformable when subjected to pressure by being pressed by the human body. The measuring circuit comprises 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 a cardiac cycle, heart rate, respiratory cycle and respiration rate based on the frequency components of heart beats and respiration included in the variations.
A heart beat/respiration measuring device comprising a sensor (2) to be pressed by the human body, 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 elastically restorably deformable when subjected to pressure by being pressed by the human body, 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.
Dependencies are inferred from the claim text.