Resmed Sensor Technologies Limited

Niall O'Mahony

Redmond Shouldice

Stephen McMahon

Alberto Zaffaroni

Niall Fox

Graeme Alexander Lyon

Damien O'Rourke

Tony Fagan

Methods and devices provide physiological movement detection with active sound generation. In some versions, a processor may detect breathing and/or gross body motion. The processor may control producing, via a speaker coupled to the processor, a sound signal in a user's vicinity. The processor may control sensing, via a microphone coupled to the processor, a reflected sound signal. This reflected sound signal is a reflection of the sound signal from the user. The processor may process the reflected sound, such as by a demodulation technique. The processor may detect breathing from the processed reflected sound signal. The sound signal may be produced as a series of tone pairs in a frame of slots or as a phase-continuous repeated waveform having changing frequencies (e.g., triangular or ramp sawtooth). Evaluation of detected movement information may determine sleep states or scoring, fatigue indications, subject recognition, chronic disease monitoring/prediction, and other output parameters.

Apparatus, system, and method for detecting physiological movement from audio and multimodal signals

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Dublin, Ireland

Niall O'Mahony