Communication apparatus having human body contact sensing function and method thereof

Abstract

Provided is a communication apparatus having a human body contact sensing function and a method thereof. The communication apparatus includes: an electrode that comes in contact with the human body; a contact sensor that is connected to the electrode, and instructs the central processing unit to perform an initial operation if contact with the human body is sensed; and a data processing unit that receives a control signal from the central processing unit so as to select whether to transmit or receive data, and performs a transmitting or receiving operation according to the control signal. Accordingly, in order to reduce power consumption when in a stand-by state before human body contact is made in a communication apparatus using a human body as a communication medium, a human body contact sensor is included so as to minimize power consumption of a micro processing unit and a transmitter / receiver circuit until contact occurs. Therefore, since power consumption is minimized when in a stand-by mode by using a contact sensor having significantly low power consumption, there is an advantage in that a stand-by time of a portable device is extended.

Description

technical field [0001] The present invention relates to a controller and a transmitter / receiver for human body communication by sensing the contact or proximity of the human body by using a method of transmitting signals between devices mounted on or placed near the human body as a communication medium A communication device and method for a module to enter a normal working state from a standby mode. Background technique [0002] In a conventional system for human body communication, devices mounted on or placed near a human body communicate with each other through the human body as a communication medium, which makes a communication channel when in contact with the human body. However, when a device embedded with a human body communication module will come into contact with a human body is uncertain, and thus it is necessary to periodically check signals to find out whether a communication channel has been formed between corresponding devices. In this case, even if there i...

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Problems solved by technology

That is, in order to check whether a channel is formed, the transmitter circuit has to work even without contact with the human body, which causes unnecessary power consumption

[0004] As mentioned above, even if there is no contact with the human body, the transmitter / receiver circuit and the microcontroller controlling the transmitter / receiver circuit have to work continuously or periodically in a normal state to determine Is a channel already formed in the

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