Patent ID: 7761302

Claim:
A calibration method for calibrating an apparatus comprising a process to differentiate acoustic signals attributable to cough from other acoustic signals, the method comprising: receiving, by the processor, first data representing a first acoustic signal representing at least one cough; receiving, by the processor, second data representing a second acoustic signal representing an acoustic event other than cough; and processing, by the processor, said first and second data to generate configuration data for said apparatus, said configuration data defining at least one rule which when applied differentiates acoustic signals attributable to cough from other acoustic signals, wherein said rule is defined by one or more selected frequencies each having an associated amplitude and the one or more selected frequencies are each selected from a plurality of predetermined frequencies such that the amplitude of said first and second acoustic signals at said selected frequencies has a difference greater than the difference between the amplitude of said first and second acoustic signals at all others of said predetermined frequencies.