| 摘要 |
PURPOSE: To display characters and symbols and to give an electric stimulus to the cortex of a human body by using a stimulative current pulse which a person can perceive by putting his fingertip on an electrode device. CONSTITUTION: An electrode device E includes one point electrode P and one counter electrode G. The point electrode P is connected to a charging current source 22 and is controlled to be turned on/off by a switching signal 20, and a charging current IL flows through the cortex of the human body and a transistor TA when stimulating electrodes P and G are over-bridged through the cortex of the human body by the fingertip, and the transistor is controlled through one connection by another switching signal 26. An electric circuit 24 representing the cortex of the human body us provided on the electrode device E, and a voltage UE1 is applied to the point electrode P and the counter electrode G. Thus, a text and picture information can be sensed through a tactual sense by using the electrode device. |
