Patent ID: 6362673
Filing Date: 2002-03-26
Classification: H03K

Abstract:
Process for converting a signal exhibiting alternating rising and falling transitions with porches between two transitions, into a rectangular signal exhibiting a single low value and a single high value, said process comprising the steps of:determining a threshold on each transition of the signal to be converted; and switching the signal from the low value to the high value or conversely in response to the signal to be transformed exceeding the threshold or falling below the threshold, wherein, in order to determine the instant of transition from the low value to the high value, or vice versa, of the rectangular signal, on each transition of the signal to be converted, the value of the threshold is maintained for a first duration from the start of the porch of the signal to be converted which occurs after the transition, and the threshold is compared with the transition of the signal to be converted, delayed by a second duration, such that the first duration is greater than the second duration and the first and second durations being chosen in such a way that the threshold occurs in the middle region of the signal to be converted, delayed by the second duration.