Bioelectric signal detector and massage machine
First Claim
1. A biosignal sensing device for sensing a biosignal from a living body as a subject, comprising:
- an oscillating section for supplying a high frequency signal;
an electrode section including an electrode mounted so that said living body as a subject can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section;
a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said living body as a subject is in close proximity to or in contact with said electrode;
a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and
a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, whereinsaid sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said living body, anda frequency of said high frequency signal supplied from said oscillating section is preset to a value in a region where said reflected-wave level changes at a high rate according to change in said frequency with respect to a region where said reflected-wave level changes at a minimum rate according to change in said frequency,wherein said desired biosignal is indicative of a respiration rate.
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Accused Products
Abstract
A biosignal sensing device (2) includes an electrode section (12) including a pair of electrodes (12a,12b) mounted so that a living body can be in close proximity to or in contact with the electrodes. An oscillation section (11) supplies a high frequency signal to the electrodes. A reflected-wave level from the electrodes receiving the high frequency signal changes according to a change in impedance in the electrodes that are in close proximity to or in contact with the living body. This change in reflected-wave level reflects a change in impedance resulting from body movement of the living body such as respiration and pulsation. A sensing section (13) senses a signal indicating the change in reflected-wave level. Based on this signal, a signal amplifying section (14) calculates a desired biosignal such as pulse rate and respiration rate.
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Citations
25 Claims
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1. A biosignal sensing device for sensing a biosignal from a living body as a subject, comprising:
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an oscillating section for supplying a high frequency signal; an electrode section including an electrode mounted so that said living body as a subject can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section; a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said living body as a subject is in close proximity to or in contact with said electrode; a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said living body, and a frequency of said high frequency signal supplied from said oscillating section is preset to a value in a region where said reflected-wave level changes at a high rate according to change in said frequency with respect to a region where said reflected-wave level changes at a minimum rate according to change in said frequency, wherein said desired biosignal is indicative of a respiration rate. - View Dependent Claims (3, 4, 5, 9, 10, 11, 12)
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2. A biosignal sensing device for sensing a biosignal from a living body as a subject, comprising:
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an oscillating section for supplying a high frequency signal; an electrode section including an electrode mounted so that said living body as a subject can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section; a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said living body as a subject is in close proximity to or in contact with said electrode; a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said living body, and a frequency of said high frequency signal supplied from said oscillating section is preset to a value in a region where said reflected-wave level changes at a minimum rate according to change in said frequency, wherein said desired biosignal is indicative of a pulse rate.
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6. A biosignal sensing device for sensing a biosignal from a living body as a subject comprising:
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an oscillating section for supplying a high frequency signal; an electrode section including an electrode mounted so that said living body as a subject can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section; a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said living body as a subject is in close proximity to or in contact with said electrode; a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said living body, wherein the frequency of said high frequency signal supplied from said oscillating section is variable, said biosignal sensing device further comprising; a control section for controlling said oscillating section so as to change said frequency, wherein said sensing section senses said change in reflected-wave level according to said change in frequency, and said control section controls said oscillating section so as to set said variable frequency to a region where said reflected-wave level changes at a high rate according to said change in frequency with respect to a region where said reflected-wave level changes at a minimum rate according to chance in said frequency, wherein said desired biosignal is indicative of a respiration rate. - View Dependent Claims (8)
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7. A biosignal sensing device for sensing a biosignal from a living body as a subject comprising:
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an oscillating section for supplying a high frequency signal; an electrode section including an electrode mounted so that said living body as a subject can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section; a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said living body as a subject is in close proximity to or in contact with said electrode; a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said living body, wherein the frequency of said high frequency signal supplied from said oscillating section is variable; a control section for controlling said oscillating section so as to change said frequency wherein said sensing section senses said change in reflected-wave level according to said change in frequency and said control section sets said variable frequency to a region where said reflected-wave level changes at a minimum rate according to said change in frequency, wherein said desired biosignal is indicative of a pulse rate.
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13. A massaging machine for giving treatment to a user in an automated manner based on a prescribed program, comprising:
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a massaging unit for giving treatment to said user; a biosignal sensing device for sensing a biosignal from said user; and an operation control section for driving said massaging unit according to said prescribed program and said sensed biosignal, wherein said biosignal sensing device including an oscillating section for supplying a light frequency signal, an electrode section including an electrode mounted so that said user can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section, a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said user is in close proximity to or in contact with said electrode, a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said user, and a frequency of said high frequency signal supplied from said oscillating section is preset to a value in a region where said reflected-wave level changes at a high rate according to change in said frequency with respect to a region where said reflected wave level changes at a minimum rate according to change in said frequency, wherein said desired biosiqnal is indicative of a respiration rate. - View Dependent Claims (15, 16, 17, 18, 23, 24, 25)
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14. A massaging machine for giving treatment to a user in an automated manner based on a prescribed program, comprising:
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a massaging unit for giving treatment to said user; a biosignal sensing device for sensing a biosignal from said user; and an operation control section for driving said massaging unit according to said prescribed program and said sensed biosignal, wherein said biosignal sensing device including an oscillating section for supplying a high frequency signal, an electrode section including an electrode mounted so that said user can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section, a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said user is in close proximity to or in contact with said electrode, a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said user, and a frequency of said high frequency signal supplied from said oscillating section is preset to a value in a region where said reflected-wave level changes at a minimum rate according to change in said frequency, wherein said desired biosignal is indicative of said pulse rate.
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19. A massaging machine for giving treatment to a user in an automated manner based on a prescribed program, comprising:
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a massaging unit for giving treatment to said user; a biosignal sensing device for sensing a biosignal from said user; and an operation control section for driving said massaging unit according to said prescribed program and said sensed biosignal, wherein said biosignal sensing device including an oscillating section for supplying a high frequency signal, an electrode section including an electrode mounted so that said user can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section, a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said user is in close proximity to or in contact with said electrode, a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said user, wherein the frequency of said high frequency signal supplied from said oscillating section is variable, said massaging machine further comprising; a control section for controlling said oscillating section so as to change said frequency, wherein said sensing section senses said change in reflected-wave level according to said change in frequency, and said control section controls said oscillating section so as to set said variable frequency to a region where said reflected-wave level changes at a high rate according to said change in frequency with respect to a region where said reflected wave level changes at a minimum rate according to change in said frequency, wherein said desired biosignal is indicative of a respiration rate. - View Dependent Claims (21, 22)
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20. A massaging machine for giving treatment to a user in an automated manner based on a prescribed program, comprising:
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a massaging unit for giving treatment to said user; a biosignal sensing device for sensing a biosignal from said user; an operation control section for driving said massaging unit according to said prescribed program and said sensed biosignal, wherein said biosignal sensing device including an oscillating section for supplying a high frequency signal, an electrode section including an electrode mounted so that said user can be in close proximity to or in contact with said electrode, said electrode being coupled to receive said high frequency signal from said oscillating section, a sensing section for sensing a change in impedance that occurs in said electrode receiving said high frequency signal when said user is in close proximity to or in contact with said electrode, a signal amplifying section having a filter function to extract a signal according a desired biosignal from a signal corresponding to said sensed change in impedance; and a signal processing section for producing said desired biosignal from said signal extracted by said signal amplifying section, wherein said sensing section produces and supplies a signal indicating a change in reflected-wave level of said high frequency signal corresponding to said change in impedance that occurs in said electrode according to body movement of said user wherein the frequency of said high frequency signal supplied from said oscillating section is variable, said massaging machine further comprising; a control section for controlling said oscillating section so as to change said frequency, wherein said sensing section senses said change in reflected-wave level according to said change in frequency, and said control section sets said variable frequency to a region where said reflected-wave level changes at a minimum rate according to change in said frequency, wherein said desired biosignal is indicative of a pulse rate.
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Specification