Importance

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Abstract

A device for filtering a signal delivered as output from a sensor installed in a motor vehicle includes a comparator (A) offering as output a first logic signal (S.sub.A) representative of the positive and negative transitions of the output signal (S.sub.M) from the sensor, a clock (G) delivering a signal (S.sub.G) serving as time base for the whole device, elements (E, D, F) making it possible to fix a filtering time (T.sub.Filt) of the output signal (S.sub.M) from the sensor, a suppression block (B) receiving as input the first logic signal (S.sub.A) and delivering as output a second logic signal (S.sub.b) whose duration of holding (tn) in a logic state depends on the filtering time (T.sub.Filt), and a control block (C) managing the set of the signals of the device, and having as input signals the first and second logic signals (S.sub.A, S.sub.b).

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First Claim