Living body detection sensor, communication apparatus having living body detection sensor, metal detection sensor
First Claim
1. A living body detection sensor comprising:
- an antenna;
a substrate including a reference potential electrode and a dielectric material;
a signal generator configured to generate a first signal, the signal generator being provided on the substrate;
a first conductor configured to receive the first signal and to output the first signal, the first conductor being separated from the substrate;
a second conductor configured to connect to the first conductor through a spatial coupling, to receive the first signal outputted from the first conductor, and to output the first signal, the second conductor being separated from the substrate; and
a detector configured to receive the first signal outputted from the second conductor and to detect a signal intensity of the first signal outputted from the second conductor, the detector being provided on the substrate, whereinthe living body detection sensor configured to detect a living body when the signal intensity detected by the detector changes and to perform communication by use of an electromagnetic field produced around the living body when a distance between the living body and the living body detection sensor is equal to or less than a predetermined distance, and by use of the antenna when the distance between the living body and the living body detection sensor is greater than the predetermined distance.
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Accused Products
Abstract
According to one embodiment, a living body detection sensor includes a substrate, a signal generation unit, a first conductor, a second conductor, and a detection unit. The substrate includes a reference potential electrode and a dielectric material. The signal generation unit generates a first signal, the signal generation unit is provided on the substrate. The first conductor receives the first signal, the first conductor is separated from the substrate. The second conductor t receive the first signal sent from the first conductor, the second conductor is separated from the substrate. The detection unit receives the first signal outputted from the second conductor and detects an electric field produced between the first conductor and the second conductor, the detection unit is provided on the substrate. The living body detection sensor detects whether a living body is close to the living body detection sensor.
21 Citations
15 Claims
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1. A living body detection sensor comprising:
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an antenna; a substrate including a reference potential electrode and a dielectric material; a signal generator configured to generate a first signal, the signal generator being provided on the substrate; a first conductor configured to receive the first signal and to output the first signal, the first conductor being separated from the substrate; a second conductor configured to connect to the first conductor through a spatial coupling, to receive the first signal outputted from the first conductor, and to output the first signal, the second conductor being separated from the substrate; and a detector configured to receive the first signal outputted from the second conductor and to detect a signal intensity of the first signal outputted from the second conductor, the detector being provided on the substrate, wherein the living body detection sensor configured to detect a living body when the signal intensity detected by the detector changes and to perform communication by use of an electromagnetic field produced around the living body when a distance between the living body and the living body detection sensor is equal to or less than a predetermined distance, and by use of the antenna when the distance between the living body and the living body detection sensor is greater than the predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification