Patent ID: 11948690
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC G

Claim 9:
10. A computer hardware system, comprising:
a microphone configured to generate a time series of audio signals; and
a hardware processor configured to passively monitor the time series of the audio signals for a cough event by a user, wherein the hardware processor includes
a cough detector configured to filter portions of the audio signals that do not relate to the cough event to generate filtered audio signals;
a feature vector generator configured to generate a cough feature vector corresponding to the filtered audio signals, wherein each element of the cough feature vector corresponds to one or more of a plurality of audio signal features extracted from the filtered audio signals, wherein the plurality of audio signal features includes mean value of mel-frequency cepstral coefficients (MFCCs) and skewness of MFCCs; and
a regressor configured to generate a predicted lung function metric of the user based on the cough feature vector;

wherein the computer hardware system includes a feature vector optimizer configured to select particular ones of the plurality of audio signal features as extracted from the filtered audio signals for inclusion into the cough feature vector based upon one or more biodemographic factors of the user including a health status of the user.