Patent ID: 11867771
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A method for detecting an arc, the method comprising:
applying a first wavelet transformation with a first mother wavelet to a chronological sequence of current measurements of a current through a lead, to obtain first wavelet coefficients,
applying a second wavelet transformation with a second mother wavelet different from the first mother wavelet to the chronological sequence of current measurements to obtain second wavelet coefficients,
applying a third wavelet transformation with a third mother wavelet different from the first mother wavelet and the second mother wavelet to the chronological sequence of current measurements in order to obtain third wavelet coefficients, and
determining whether an arc is present based on the first wavelet coefficients, the second wavelet coefficients, and the third wavelet coefficients, wherein the first mother wavelet is a biorthogonal wavelet and the third mother wavelet is a reverse biorthogonal wavelet.