| 摘要 |
PURPOSE:To shorten the time when a circuit is acquired, by storing input data and then by transmitting them to the circuit at a constant speed, as to a data terminal equipment which sends data via a telephone circuit by acoustically coupling with a telephone set. CONSTITUTION:Data inputted from keyboard 2 are displayed on a data display part for confirmation and then stored in data memory part 31. When mode change-over switch 4b is switched to a transmission mode (B side), stored data are outputted to data transmission part 24 by way of interface 32 according to steps of program generation part 30. Transmission part 24 generates and sends a two-frequency signal or frequency-modulated signal to telephone set 6 via acoustic converter 9. Therefore, data can be sent to a circuit at a constant speed with stable timing, so that the time needed to acquire a telephone circuit can be shortened. |
