| 摘要 |
<p>PURPOSE:To obtain a pulse stretch circuit for facilitating visual confirmation, discrimination and judgement, by enlarging the receiving pulse width of a radar reflected signal. CONSTITUTION:With due regard to the timewise relation of the signal wave form of a specific one low video signal S1 in each circuit, the output signal wave form of a monostable multivibrator 3 rises directly before that of a delay circuit falls. Therefore, the output wave form of the output terminal T3 of an OR circuit 4 outputs a pulse signal, which has a time width from the rising of a pulse signal shown by D to the falling of a signal shown C, as shown by E. In this case, because the delay circuit 2 is interposed, the characteristic of the delay time td of the delay circuit 2 is put to practical use and the timewise relation of two pulse signal wave forms inputted to the OR circuit 4 is properly selected to prevent the generation of trouble. As the delay element of the delay circuit 2, an inherent delay time characteristic possessed by IC is utilized to enable said delay element to also have a function as a pulse stretch circuit.</p> |
