Patent ID: 8506501
Filing Date: 2013-08-13
Classification: A61B

Abstract:
1. A lightweight wheeze detection method, comprising the steps of: receiving by a respiratory data processing system a respiratory signal; calculating by the processing system noncontiguous lines of a short-time Fourier transform (STFT) image of the respiratory signal until a start line conforming to one or more wheeze peak criteria is identified; once a start line conforming to the wheeze peak criteria is identified, calculating by the processing system contiguous lines of the SIFT image preceding the start line and contiguous lines of the STFT image following the start line until both a preceding line and a following line not conforming to the wheeze peak criteria are identified; and, once both a preceding line and a following line not conforming to the wheeze peak criteria are identified, determining by the processing system using a total count of calculated lines of the STFT image conforming to the wheeze peak criteria whether a duration of a peak conforms to one or more wheeze duration criteria.