Patent ID: 11890113
Assignee: SALUDA MEDICAL PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 13:
14. The controller of claim 13, wherein the processor is further configured to determine the optimal time delay when a signal to artefact ratio is greater than one, at which the single point of the correlation between the neural measurement and the filter template is configured to be produced, by:
at an approximate time delay between the neural response and the filter template, computing real and imaginary parts of a fundamental frequency of a discrete Fourier transform (DFT) of the neural measurement;
calculating a phase defined by the real and imaginary parts;
relative to a fundamental frequency of the template, calculating a time adjustment needed to change the calculated phase to π/2; and
defining the optimal time delay as being a sum of the approximate time delay and the time adjustment.