| 摘要 |
PURPOSE:To perform real time processing for data, by using a self-closed on-gate and rejecting unnecessary noise in hardware. CONSTITUTION:A video signal VDS from a camera is separated into a video signal PCT, and vertical and horizontal synchronizing signals VS, HS at a signal separation circuit 30. The PCT is binary coded at a pulse generator 33 and an output at 5 is inputted to self-closed on-gates 12, 22. After the gates 12, 22 pass through pulses, they are closed to inhibit passage of succeeding pulses. The output of the gates 12, 22 are stored in registers 13, 23, and read out with the output of a counter 32. Thus, the self-closed on-gates inhibit the passing of noise and enable the noise rejection in real time. |
