| 摘要 |
PURPOSE:To enable to notice to an erroneous dialing immediately, by reading out a digital signal corresponding to each figure of dialed number and converting the digital signal into corresponding audio signal. CONSTITUTION:When a push button 1 is depressed, the dial signal is applied to a telephone line network 3 through a tone generator 2 and applied to a controller 7 via an interface circuit 6. The controller 7 inputs a dial signal and a digital signal corresponding to each figure of a dialed number is selected from the memory of a memory circuit 8 and transmitted to a demodulator 9 sequentially. The demodulator 9 converts the digital signal into an analog signal and informs a dialed number to the dial operator from a speaker 11. |
