Logic circuit having error detection function, redundant resource management method, and fault tolerant system using it

Abstract From the Canadian patent

A self-checking circuit and a method of its configuration are useful for achieving highly reliable system configuration. A logic circuit having an error detection function has function blocks for feeding out a plurality of signals at least duplexed. The system compares the output signals of the function blocks and detects an error on the basis of the results of the comparison. A synthesizing system superimposes inherent waveforms assigned in advance to the respective output signals of the function blocks onto the output signals of one of the function blocks. The inherent waveforms are orthogonal waveforms generated by an orthogonal waveform generator circuit. The logic circuit also compares …