Pulse Wave Sensor and Semiconductor Module
First Claim
1. A pulse wave sensor comprising:
- a light emitting unit configured to emit light including green light and red light to a living body;
a first light receiving unit configured to convert, into a first electrical signal, the green light included in light emitted from said light emitting unit and reflected within said living body;
a second light receiving unit configured to convert, into a second electrical signal, the red light included in the light emitted from said light emitting unit and reflected within said living body; and
an arithmetic control unit configured to detect information related to a pulse wave in said living body based on a level difference between said first electrical signal and said second electrical signal.
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Accused Products
Abstract
A pulse wave sensor includes: a white LED emitting white light to a human body; a G sensor converting, into a first electrical signal, green light included in light emitted from the white LED and reflected within the human body; an R sensor converting, into a second electrical signal, red light included in the light emitted from the white LED and reflected within the human body; and an arithmetic control unit configured to generate a signal showing a heart rate based on a level difference between the first electrical signal and the second electrical signal. Therefore, a distance between the G sensor and the R sensor does not have to be increased, so that an apparatus can be reduced in size.
17 Citations
15 Claims
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1. A pulse wave sensor comprising:
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a light emitting unit configured to emit light including green light and red light to a living body; a first light receiving unit configured to convert, into a first electrical signal, the green light included in light emitted from said light emitting unit and reflected within said living body; a second light receiving unit configured to convert, into a second electrical signal, the red light included in the light emitted from said light emitting unit and reflected within said living body; and an arithmetic control unit configured to detect information related to a pulse wave in said living body based on a level difference between said first electrical signal and said second electrical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification