| 摘要 |
PURPOSE:To process signals requiring a broad frequency band such as video signals on real time digitally, to convert a video signal synchronizingly separated into a n-bit parallel digital signal at an A-D converter, to process picture at one or more digital correlating device groups per one bit, to convert the picture into an analog signal again at a D-A converter and to output the analog signal in addition with a synchronizing signal. CONSTITUTION:The analog signal H1 is inputted to two A-D converters. The A-D converter 1H2 is driven with a clock 1H4 and the A-D converter 2H3 converts the signal into a digital signal with a clock 2H5 delayed by a half period from the clock 1 and the digital signal is processed at a digital correlating device. A full adder group H6 is connected between the digital correlating device groups 1, 2 to double the resolution and accuracy. |
