Living body information measuring apparatus, living body information measuring method, body fat measuring apparatus, body fat measuring method, and program recording medium
First Claim
1. A living body information measuring method wherein a plurality of paths from a light emitting portion to a light receiving portion are created, and based on a light reception signal, from a path with higher accuracy, of a plurality of light reception signals obtained from the paths, living body information is calculated by a signal processor.
1 Assignment
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Accused Products
Abstract
A body fat measuring apparatus is provided with a light emitting device 1 for projecting light rays to a subject'"'"'s tissue, light receiving devices 3 and 4 for detecting a transmitted light ray having passed through the subject'"'"'s tissue and/or a reflected light ray reflected inside the subject'"'"'s body, and a CPU 6 for calculating the subject'"'"'s subcutaneous fat thickness and/or body fat percentage by performing an operation by use of the detection results of the light receiving devices 3 and 4. The light receiving devices 3 and 4 are situated at different distances from the light emitting device 1.
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Citations
44 Claims
- 1. A living body information measuring method wherein a plurality of paths from a light emitting portion to a light receiving portion are created, and based on a light reception signal, from a path with higher accuracy, of a plurality of light reception signals obtained from the paths, living body information is calculated by a signal processor.
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6. A living body information measuring apparatus comprising:
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a light emitting portion for projecting light rays to a subject;
a light receiving portion for detecting, of the light rays, a transmitted light ray or a reflected light ray having passed through the subject; and
a signal processor for calculating the subject'"'"'s living body information by analyzing a light ray detected by the light receiving portion, wherein at least one of the number of light emitting portions and the number of light receiving portions is not less than two, and wherein the signal processor analyzes, of a plurality of light rays detected by the light receiving portion, a light ray with higher accuracy to calculate the subject'"'"'s living body information. - View Dependent Claims (7, 8, 35, 40)
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9. A body fat measuring apparatus comprising:
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a light emitting portion for projecting light rays to a subject'"'"'s tissue;
a light receiving portion for detecting, of the light rays, a transmitted light ray having passed through the subject'"'"'s tissue and/or a reflected light ray reflected inside the subject'"'"'s body; and
signal processing operation means for calculating the subject'"'"'s subcutaneous fat thickness and/or body fat percentage by performing an operation by use of a detection result of the light receiving portion, wherein either the number of light emitting portions or the number of light receiving portions is not less than two, and wherein the not less than two light emitting portions or light receiving portions are situated at different distances from corresponding light receiving portions or light emitting portions. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A living body information measuring apparatus comprising:
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a light emitting portion for projecting light rays to a subject'"'"'s tissue;
a light receiving portion for detecting, of the light rays, a transmitted light ray having passed through the subject'"'"'s tissue and/or a reflected light ray reflected inside the subject'"'"'s body; and
signal processing operation means for calculating the subject'"'"'s living body information by performing an operation by use of a detection result of the light receiving portion, wherein either the number of light emitting portions or the number of light receiving portions is not less than two, wherein the not less than two light emitting portions or light receiving portions are situated at different distances from corresponding light receiving portion or light emitting portions, wherein light sources of the plurality of light emitting portions are the same, or photoelectric conversion devices of the plurality of light receiving portions are the same, and wherein one of outputs of the plurality of light emitting portions or outputs of the plurality of light receiving portions is corrected by another one of the outputs. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 36, 41)
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33. A method of measuring living body information by projecting light from a light emitting portion to a subject and measuring a quantity of light having passed through the subject, said method comprising:
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a first step in which the light emitting portion is situated adjacent to a light receiving portion, and the quantity of the light having passed through the subject is measured by the light receiving portion;
a second step in which a distance between the light receiving portion and the light emitting portion is increased, light is projected to the subject, and the quantity of the light having passed through the subject is measured by the light receiving portion; and
a third step in which a quotient (division) of a measurement value obtained by the first step and a measurement value obtained by the second step is obtained to calculate living body information. - View Dependent Claims (38, 43)
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34. A method of measuring living body information by projecting light emitted from a light emitting portion to a subject and measuring a quantity of light having passed through the subject, said method comprising:
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a first step in which the light emitted from the light emitting portion is made incident on the subject through a first light directing path, and the quantity of the light having passed through the subject is measured by a light receiving portion disposed adjacent to an exit end of the first light directing path;
a second step in which the light emitted from the light emitting portion is made incident on the subject through a second light directing path disposed so that an exit end thereof is situated farther away from the light receiving portion than the exit end of the first light directing path, and the quantity of the light having passed through the subject is measured; and
a third step in which a quotient (division) of a measurement value obtained by the first step and a measurement value obtained by the second step is obtained to calculate living body information. - View Dependent Claims (39, 44)
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Specification