| 摘要 |
PURPOSE:To control many functions with a small number of key switches by synthesizing and delivering repetitively a transmission data at each input of a timing signal while the key switch is pushed. CONSTITUTION:When the key switch 12 is pushed plural times to supply the key input signal to a key input detecting circuit 16, an output synthesizing circuit 18 synthesizes a series of data. The circuit 18 synthesizes repetitively the data by one cycle at each input of a prescribed timing pulse to a multiple-/single- shot signal generating circuit 17. The prescribed timing pulse is supplied to the circuit 17 despite the time shift of the key input signal as long as the switch 12 is continuously pushed. |
