Patent ID: 11864928
Assignee: CARDIAC PACEMAKERS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. The system of claim 1, comprising a memory circuit to store a reference spectral content of respiratory sounds, the reference spectral content including a first reference spectrum within the first frequency band and a second reference spectrum within the second frequency band, wherein the detector circuit is configured to generate the respiratory anomaly indicator further using one or more of the first or the second spectral content, the respiratory anomaly indicator indicating:
the first spectral content having a lower spectral power than the first reference spectrum by a specified margin;
the second spectral content having a higher spectral power than the second reference spectrum by a specified margin; or
a ratio of the first spectral content to the second spectral content falling below a ratio of the first reference spectrum to the second reference spectrum by a specified margin.