Biometric sensor and biometric method
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Accused Products
Abstract
A living body measuring sensor (1) is made to contact a body surface of a measuring subject through capacitance coupling using a cloth (6) between a metal electrode (2) and the body surface as the capacitance, a living body electric signal is extracted from the metal electrode (2), and an elctrocardiographic waveform is outputted based on an output of the living body measuring sensor (1) using an impedance converter having a high input impedance and a low output impedance.
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Citations
20 Claims
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1-10. -10. (canceled)
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11. A living body measuring sensor for detecting a living body electric signal from a body surface of a measuring subject, comprising
a conductive electrode capacitance-coupled on said body surface of said measuring subject via an insulating member; - and
a living body electric signal extractor circuit for outputting said living body electric signal from said conductive electrode with a low impedance. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A living body measuring method for extracting a living body electric signal from a body surface of a measuring subject using a living body measuring sensor including a conductive electrode mounted on said body surface of said measuring subject via an insulating material, wherein
said living body electric signal is outputted with a low impedance by capacitance coupling and thereby mounting said living body measuring sensor on said body surface of said measuring subject.
Specification