| 摘要 |
PURPOSE:To use a wire telephone circuit and communicate data even by means of a computer without a terminal for communication by connecting an audio interface built in the computer through an adaptor for communication to the wire telephone circuit. CONSTITUTION:An audio interface 6 of a computer 1 is connected to an adaptor 5 for communication. The interface 6 converts a data signal and an acoustic signal (sound frequency band signal) when a signal of the computer and an audio recorder as an external memory device is given and received. The device 5 has a means 10 which adapts electric properties between a wire telephoen circuit 4 and the interface 6, a coupling means 9 which communicates the signal between the circuit 4 and the interface 6 and a means which holds the circuit 4 in terms of direct current. |
