Method and system for data communication in human body and sensor therefor
First Claim
1. In a method for transmitting a signal from a sensor put in the human body to the outside of the human body, a method for data communication in the human body, comprising the steps of:
- generating electric potential difference between transmitting electrodes installed on the surface of a sensor;
supplying a current from the transmitting electrode having higher electric potential to the inside of the human body to flow the current through the surface of the human body back into the inside of the human body and sinking the current to the transmitting electrode having lower electric potential; and
inducing a voltage between receiving electrodes installed on the surface of the human body by the current flowing through the surface of the human body.
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Abstract
The present invention provides method and system for data communication in the human body and a sensor therefor. The method and system transmit information through the human body to a receiver located outside the human body using low current and voltage polarity, so that they cause no damage to the human body and achieve low power consumption and better receiving sensitivity. In addition, the sensor contains a CMOS image sensor on which all circuits are integrated without radio transmitter and antenna, so that it achieves a low-priced and small-sized capsule type endoscope.
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Citations
42 Claims
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1. In a method for transmitting a signal from a sensor put in the human body to the outside of the human body, a method for data communication in the human body, comprising the steps of:
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generating electric potential difference between transmitting electrodes installed on the surface of a sensor;
supplying a current from the transmitting electrode having higher electric potential to the inside of the human body to flow the current through the surface of the human body back into the inside of the human body and sinking the current to the transmitting electrode having lower electric potential; and
inducing a voltage between receiving electrodes installed on the surface of the human body by the current flowing through the surface of the human body. - View Dependent Claims (2)
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3. A system for data communication in the human body, comprising:
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a sensor, which is put in the human body, having transmitting electrodes for generating electric potential difference; and
a receiver installed on the surface of the human body to receive a current generated by the electric potential difference through the human body. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. In a capsule type endoscope put in the human body, a capsule type endoscope, comprising:
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a lighting device for irradiating the inside of the human body;
a lens for focusing light incident from the inside of the human body;
a CMOS image sensor for generating an electric signal from the light focused by the lens;
a housing for containing the lighting device, the lens and the CMOS image sensor; and
a transmitting electrode installed on the surface of the housing to receive the electric signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. In a method for transmitting a signal from a capsule type endoscope put in the human body to the outside of the human body, a method for data communication in the human body, comprising the steps:
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generating electric potential difference between transmitting electrodes installed on the surface of a capsule type endoscope;
supplying a current from the transmitting electrode having higher electric potential to the inside of the human body to flow the current through the surface of the human body back into the inside of the human body and sinking the current to the transmitting electrode having lower electric potential; and
inducing a voltage between receiving electrodes installed on the surface of the human body by the current flowing through the surface of the human body. - View Dependent Claims (40, 41, 42)
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Specification