Hearing device-based systems and methods for determining a quality index for a cardiorespiratory measurement
Inventors
Parker, Anna M. • Stumpf, Nina • Ignasiak, Niklas • Ohs, Nicholas • Feilner, Manuela • Roeck, Hans-Ueli • El Guindi, Nadim
Assignees
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Publication Number
US-12156742-B2
Publication Date
2024-12-03
Expiration Date
Abstract
An illustrative hearing system may be configured to receive, from an inertial sensor included in a hearing device configured to be worn by a user, inertial sensor data representative of at least one of motion of the hearing device or orientation of the hearing device. The hearing system may further be configured to determine, based on the inertial sensor data, an activity state of the user and to determine, based on the activity state, a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property of the user.
Core Innovation
The invention relates to a wearable hearing-device system that detects user activity state using inertial sensor data representative of motion of the hearing device and/or an orientation of the hearing device. The hearing device includes a microphone configured to detect an audio signal presented to the user and an output transducer configured to output the audio signal detected by the microphone to the user. Based on the inertial sensor data, the system determines an activity state of the user.
Based on the activity state, the system determines a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property of the user. The cardiorespiratory quality index is representative of how a measurement of a cardiorespiratory property is expected to be of a certain quality level, as determined from the determined activity state. The cardiorespiratory property measurement quality level is therefore determined in relation to the user activity state.
The activity state can be determined as activity intensity and/or activity type and/or user stress level and/or user posture. The cardiorespiratory property can include one or more physiological measurements, such as blood pressure, respiratory rate, heart rate variability, blood analyte level, and capillary oxygen saturation (SpO2). The system can further store measurements in a cardiorespiratory measurement state distribution representing a curve of the measurements across the activity state.
The system architecture includes an activity state classifier, a cardiorespiratory measurement module, and a cardiorespiratory measurement quality index module, together with a cardiorespiratory measurement state distribution concept storing quality/index and measurement likelihood across activity states. The quality index can be used with a threshold to control measurement validity and sensor configuration actions for blood flow and/or electrocardiogram sensing in contact with the user. A quality index and measurement data can be provided for display and/or transmission.
Claims Coverage
The independent claims are clm-00001, clm-00018, and clm-00021. Across these independent claims, the coverage centers on a wearable hearing device that uses inertial sensor data to determine an activity state and on determining a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property based on the activity state.
Activity state determination using hearing-device inertial sensors
Receiving inertial sensor data representative of motion of the hearing device or orientation of the hearing device, and determining, based on the inertial sensor data, an activity state of the user.
Cardiorespiratory quality index based on activity state
Determining, based on the activity state, a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property of the user.
Wearable hearing device audio path with inertial-based quality indexing
Providing a hearing device comprising an inertial sensor, a microphone configured to detect an audio signal presented to the user, and an output transducer configured to output the audio signal detected by the microphone to the user, while a processing unit receives inertial sensor data, determines activity state, and determines a cardiorespiratory quality index based on the activity state.
Method receiving inertial and determining activity and quality index
Receiving inertial sensor data representative of motion of the hearing device or orientation of the hearing device; determining, based on the inertial sensor data, an activity state of the user; and determining, based on the activity state, a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property of the user.
Across clm-00001, clm-00018, and clm-00021, the claims cover a wearable hearing device and corresponding method that determine a user activity state from inertial sensor data and then compute a cardiorespiratory quality index representing a quality level of a cardiorespiratory property measurement based on that activity state.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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