| 摘要 |
A signal transmitting apparatus which makes exchanging information when pouring a liquid possible. A container body 201 of a transmitter side container 20 holds an electrically conductive liquid 402 . A display 306 for confirming data reception is attached to a container body 211 of a receiver side container 21 . The container body 201 and the container body 211 are electrically connected at a predetermined impedance by the liquid 402 . Because digital data is modulated by a carrier of approximately 10 MHz, an electromagnetic field is generated. In particular, a return line 404 due to an electromagnetic near field is generated, and communications from the transmitter side container 20 to the receiver side container 21 becomes possible.
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