Automatic technical device e.g. protocol converter, has microcontroller to which clock generator and memory unit are attached, and retriggerable mono-stable trigger circuits, where data bit is output based on output conditions of circuits

摘要

The device has a microcontroller (110) to which a clock generator (120) and a memory unit (150) are attached. Hold times of two retriggerable mono-stable trigger circuits are lesser than half cycle duration of high and low signal frequencies, respectively. Hold time of a third trigger circuit is larger than the duration of low frequency. Data bit is determined and output based on the output conditions of the circuits.