Method and system for data communication using a body
First Claim
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1. A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device comprising:
- a controller unit to control processing of data to be transmitted;
a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value; and
transmitting electrodes connected to the current limiting circuit and contacted with the body to generate electric potential difference therebetween, so that the signal having the current of predetermined value flows from the transmitting electrode having higher electric potential through the body to the receiver and sinks to the transmitting electrode having lower electric potential,wherein the controller unit changes the transmitter electrodes according to the data to be transmitted so that a digital “
1”
is represented as a first state when a plus voltage is applied to a first transmitting electrode and a second transmitting electrode serves as a ground, and a digital “
0”
is represented as a second state when the first transmitting electrode serves as the ground and the plus voltage is applied to the second transmitting electrode.
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Abstract
A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device includes a data receiving unit to receive data, a controller unit to control processing of data to be transmitted, a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value, and transmitting electrodes connected to the current limiting circuit and to contact the body to transmit the signal having the current of predetermined value to the receiver.
7 Citations
13 Claims
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1. A portable device for data communication using a body as a conductor to transmit data to a receiver, the portable device comprising:
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a controller unit to control processing of data to be transmitted; a current limiting circuit to limit a current of a signal corresponding to the data to be transmitted to a predetermined value; and transmitting electrodes connected to the current limiting circuit and contacted with the body to generate electric potential difference therebetween, so that the signal having the current of predetermined value flows from the transmitting electrode having higher electric potential through the body to the receiver and sinks to the transmitting electrode having lower electric potential, wherein the controller unit changes the transmitter electrodes according to the data to be transmitted so that a digital “
1”
is represented as a first state when a plus voltage is applied to a first transmitting electrode and a second transmitting electrode serves as a ground, and a digital “
0”
is represented as a second state when the first transmitting electrode serves as the ground and the plus voltage is applied to the second transmitting electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of communicating data wirelessly using a body as a conductor to transmit the data from a portable device to a receiver, the method comprising:
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controlling transmitting electrodes of the portable device to generate electric potential difference between the transmitting electrodes according to the data to be transmitted, wherein the transmitting electrodes contact the body and the body contacts receiving electrodes of the receiver; limiting a current of the transmitting electrodes to a predetermined value; and supplying the current from the transmitting electrode having higher electric potential to the body so that the current flows in form of digital through the surface of the body to the receiving electrodes of the receiver and sinks to the transmitting electrode having lower electric potential, wherein the controlling comprises changing the transmitter electrodes according to the data to be transmitted so that a digital “
1”
is represented as a first state when a plus voltage is applied to a first transmitting electrode and a second transmitting electrode serves as a ground, and a digital “
0”
is represented as a second state when the first transmitting electrode serves as the ground and the plus voltage is applied to the second transmitting electrode. - View Dependent Claims (12, 13)
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Specification