Biological signal transmission apparatus
First Claim
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1. A biological signal transmission apparatus comprising:
- at least one electrode for detecting a biological signal;
a support for supporting said electrode, said support being placed on a living body surface;
a transmitter having electric circuitry for processing the biological signal detected on said electrode; and
two loop antennas for emitting the biological signal processed by the electric circuitry to a receiver, said loop antennas being disposed in such a manner that opening faces are placed in a direction almost perpendicular to the living body surface and are almost at right angles to each other.
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Abstract
An electrode 4 for detecting a biological signal and a loop antenna 3 are integrally mounted on a support 2 placed on the surface of a living body and a transmitter 5 is placed on the support 2. A biological signal detected on the electrode 4 is input through a connector 11 to electric circuitry 10 of the transmitter 5 and an electric signal processed by the electric circuitry 10 is output through connectors 12 and 13 to both ends of the loop antenna 3 from which the biological signal is emitted to a receiver. At this time, the opening face of the loop antenna 3 is in a direction almost perpendicular to the surface of a living body for improving sensitivity.
17 Citations
13 Claims
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1. A biological signal transmission apparatus comprising:
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at least one electrode for detecting a biological signal;
a support for supporting said electrode, said support being placed on a living body surface;
a transmitter having electric circuitry for processing the biological signal detected on said electrode; and
two loop antennas for emitting the biological signal processed by the electric circuitry to a receiver, said loop antennas being disposed in such a manner that opening faces are placed in a direction almost perpendicular to the living body surface and are almost at right angles to each other. - View Dependent Claims (2, 3, 4)
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5. A biological signal transmission apparatus comprising:
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at least one electrode for detecting a biological signal;
a support for supporting said electrode, said support being placed on a living body surface;
a transmitter having electric circuitry for processing the biological signal detected on said electrode;
at least one loop antenna for emitting the biological signal processed by the electric circuitry to a receiver, said loop antenna being disposed so that an opening face is placed in a direction almost perpendicular to the living body surface; and
a microstrip antenna having a radiation plate and a base plate opposed in parallel with the living body surface, the base plate being placed nearer to the living body surface. - View Dependent Claims (7, 8, 12, 13)
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6. A biological signal transmission apparatus comprising:
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at least one electrode for detecting a biological signal;
a support for supporting said electrode, said support being placed on a living body surface;
a transmitter having electric circuitry for processing the biological signal detected on said electrode;
two loop antennas for emitting the biological signal processed by the electric circuitry to a receiver, said loop antennas being disposed so that opening faces are placed in a direction almost perpendicular to the living body surface and are almost at right angles to each other; and
a microstrip antenna having a radiation plate and a base plate opposed in parallel with the living body surface, the base plate being placed nearer to the living body surface.
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9. A biological signal transmission apparatus comprising:
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at least one electrode for detecting a biological signal;
a support for supporting said electrode, said support being placed on a living body surface;
a transmitter having electric circuitry for processing the biological signal detected on said electrode; and
a microstrip antenna having a radiation plate and a base plate opposed in parallel with the living body surface, the base plate being placed nearer to the living body surface. - View Dependent Claims (10, 11)
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Specification