DIGITAL CIRCUIT ASSURANCE SYSTEM AND DIGITAL CIRCUIT ASSURANCE METHOD

摘要

To provide a digital circuit assurance technique capable of assuring a digital circuit handling digital signals.SOLUTION: A digital circuit assurance system 1 includes a first conversion circuit 4 for converting an analog signal, acquired by a signal acquisition section 3, into a digital signal and outputting, a digital circuit 5 for outputting the processing results, based on the digital signals outputted from the first conversion circuit 4, by digital signals, an analog circuit 7 for outputting the processing results, based on the analog signals acquired by the signal acquisition section 3, by analog signals, a second conversion circuit 8 for outputting the analog signals, outputted from the analog circuit 7, by converting into digital signals, a comparison section 13 for comparing the digital signals, outputted from the digital circuit 5, with the digital signals, outputted from the second conversion circuit 8, and a signal discrimination section 14 for discriminating whether or not the digital signals, outputted from the digital circuit 5, are normal based on the comparison results from the comparison section 13.SELECTED DRAWING: Figure 1