Patent ID: 11867128
Assignee: SAFRAN AIRCRAFT ENGINES
Field: Measurement (Instruments)
Classification: CPC F  G  H | IPC F  H

Claim 4:
5. The method according to claim 3, comprising the steps of:
receiving by a comparator
the second time derivative signal of the input signal at a first input of the comparator and
a signal corresponding to a predetermined threshold at a second input of the comparator,

generating, by the comparator, a comparison signal corresponding to the result of the comparison between the signals received at the first input and the second input of the comparator,
receiving by a channel selector the comparison signal at a control input of the channel selector, each channel selector being associated with a controlled filter capable of applying frequency filtering,
receiving by the channel selector at a first input channels of the channel selector a first signal being a signal received by the controlled filter associated with the channel selector,
receiving by the channel selector at a second input channel of the channel selector a second signal being the output signal of the controlled filter associated with the channel selector, the output signal being the signal received by the controlled filter to which the controlled filter has applied frequency filtering, and
transmitting to an output of the channel selector one of the first signal and second signal depending on the value of the comparison signal.