BIOELECTRIC SIGNAL MEASUREMENT APPARATUS
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a bioelectric signal measurement apparatus that obtains an alternate current component and a direct current component of a bioelectric signal. The apparatus includes a plurality of biomedical electrodes, a switch unit, a differential amplification unit, a bioelectric signal extraction unit, and a timing control unit. The plurality of biomedical electrodes are brought into contact with a living body surface and disposed separately from each other. The switch unit short-circuits the biomedical electrodes via a predetermined short-circuit resistance. The differential amplification unit is connected to the biomedical electrodes and amplifies a difference of electric signals therefrom. The bioelectric signal extraction unit extracts a bioelectric signal from an output signal of the differential amplification unit from the release of short-circuit between the biomedical electrodes to the next timing of short-circuiting. The timing control unit controls timings for short-circuiting the biomedical electrodes and releasing the short-circuit therebetween, which are repeated.
-
Citations
22 Claims
-
1-11. -11. (canceled)
-
12. A bioelectric signal measurement apparatus comprising:
-
a plurality of biomedical electrodes in contact with a living body surface disposed separately from each other; a switch unit for short-circuiting the biomedical electrodes via a predetermined short-circuit resistor; a differential amplification unit for amplifying a difference of electric signals from the biomedical electrodes, the differential amplification unit being connected to the biomedical electrodes; a bioelectric signal extraction unit for extracting a bioelectric signal from an output signal of the differential amplification unit during a period of time from the release of short-circuit between the biomedical electrodes to the next timing of short-circuiting; and a timing control unit for controlling timing for short-circuiting the biomedical electrodes and releasing the short-circuit therebetween, which are repeated. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification