In an A-D converter including a reference voltage generator, a D-A converter for outputting analog reference comparison voltage signals in response to digital signals; a comparator for comparing the voltages with an analog input voltage signal to be converted and outputting a reset signal when the voltage...http://www.google.de/patents/US5184131?utm_source=gb-gplus-sharePatent US5184131 - A-D converter suitable for fuzzy controller
