Abstract: Methods and systems may provide for receiving a physiological signal from a sensor configuration associated with a mobile device. A qualitative analysis may be conducted for each of a plurality of noise sources in the physiological signal to obtain a corresponding plurality of qualitative ratings. In addition, at least the plurality of qualitative ratings may be used to determine whether to report the physiological signal to a remote location. In one example, a quantitative analysis is conducted for each of the plurality of noise sources to obtain an overall quality level, wherein the overall quality level is also used to determine whether to report the physiological signal to the remote location.

Abstract: Methods, systems, and storage media relating to a circulatory health monitor device are disclosed herein. In an embodiment, such a device may be positioned or disposed on and/or in contact with a subject to measure blood pressure and/or heart rate. The device may include one or more electrocardiographic (ECG) signal sensors, one or more photoplethysmographic (PPG) sensors, and a controller. The controller may activate at a low resolution a PPG measurement of the subject in relation to an ECG signal feature to identify a PPG signal feature location or region in the PPG measurement. The controller may further activate at a high resolution PPG measurement of the subject at the PPG signal feature region to identify the PPG signal feature, and may determine blood pressure and/or heart rate therefrom. Other embodiments may be disclosed and/or claimed.

Abstract: Methods and systems may provide for receiving a physiological signal from a sensor configuration associated with a mobile device. A qualitative analysis may be conducted for each of a plurality of noise sources in the physiological signal to obtain a corresponding plurality of qualitative ratings. In addition, at least the plurality of qualitative ratings may be used to determine whether to report the physiological signal to a remote location. In one example, a quantitative analysis is conducted for each of the plurality of noise sources to obtain an overall quality level, wherein the overall quality level is also used to determine whether to report the physiological signal to the remote location.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for providing a user's physiological context measurements. In one instance, the apparatus may include a physiological context measurement module including first and second electrodes, to obtain one or more parameters of physiological context of a user in response to a provision of contact of the first and second electrodes with a portion of the user's body while the physiological context measurement module is powered on; and a third electrode coupled with the module, which may be powered on in response to detection of contact between the user's body portion and the third electrode. The first, second, and third electrodes are disposed to facilitate simultaneous contact of the user's body portion with the electrodes, and collection of the one or more parameters of the physiological context while the simultaneous contact is maintained. Other embodiments may be described and/or claimed.

Abstract: Apparatuses, systems, and methods described herein can enable reliable estimation of pulse transit time (PTT) for a user in motion for cuffless blood pressure estimation. In one embodiment, a method involves receiving an electrocardiographic (ECG) signal and a photoplethysmographic (PPG) signal and detecting R-wave peaks in the ECG signal. The method further involves identifying multiple segments of the PPG signal based on detection of the R-wave peaks of the ECG signal, wherein a given segment of the PPG signal comprises multiple samples and is aligned with a corresponding R-wave. The method also involves generating an averaged PPG wave based on the multiple segments of the PPG signal, wherein a given element of the averaged PPG wave comprises an average of corresponding elements from the multiple segments of the PPG signal, and computing the blood pressure value based on the averaged PPG wave.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for opportunistic measurements of a user's physiological context, such as evaporation rate. In one instance, an apparatus may include a chamber with a first side and a second side opposite the first side. The chamber may be disposed with the first side in proximity to or in contact with a surface (e.g., body of the user). The first side may include a first opening to allow evaporation from the surface to enter the chamber. The chamber may include a second opening to allow the evaporation to exit the chamber. The chamber may further include first and second sensors (e.g., humidity sensors) disposed inside the chamber, to detect the evaporation from the surface. The apparatus may be configured to measure the evaporation based on evaporation readings provided by the sensors. Other embodiments may be described and/or claimed.

Abstract: Methods and systems may provide for receiving a physiological signal from a sensor configuration associated with a mobile device. A qualitative analysis may be conducted for each of a plurality of noise sources in the physiological signal to obtain a corresponding plurality of qualitative ratings. In addition, at least the plurality of qualitative ratings may be used to determine whether to report the physiological signal to a remote location. In one example, a quantitative analysis is conducted for each of the plurality of noise sources to obtain an overall quality level, wherein the overall quality level is also used to determine whether to report the physiological signal to the remote location.

Abstract: Apparatuses, systems, and methods described herein can enable reliable estimation of pulse transit time (PTT) for a user in motion for cuffless blood pressure estimation. In one embodiment, a method involves receiving an electrocardiographic (ECG) signal and a photoplethysmographic (PPG) signal and detecting R-wave peaks in the ECG signal. The method further involves identifying multiple segments of the PPG signal based on detection of the R-wave peaks of the ECG signal, wherein a given segment of the PPG signal comprises multiple samples and is aligned with a corresponding R-wave. The method also involves generating an averaged PPG wave based on the multiple segments of the PPG signal, wherein a given element of the averaged PPG wave comprises an average of corresponding elements from the multiple segments of the PPG signal, and computing the blood pressure value based on the averaged PPG wave.

Abstract: Methods and systems may provide for receiving a physiological signal from a sensor configuration associated with a mobile device. A qualitative analysis may be conducted for each of a plurality of noise sources in the physiological signal to obtain a corresponding plurality of qualitative ratings. In addition, at least the plurality of qualitative ratings may be used to determine whether to report the physiological signal to a remote location. In one example, a quantitative analysis is conducted for each of the plurality of noise sources to obtain an overall quality level, wherein the overall quality level is also used to determine whether to report the physiological signal to the remote location.

Abstract: Methods, systems, and storage media relating to a circulatory health monitor device are disclosed herein. In an embodiment, such a device may be positioned or disposed on and/or in contact with a subject to measure blood pressure and/or heart rate. The device may include one or more electrocardiographic (ECG) signal sensors, one or more photoplethysmographic (PPG) sensors, and a controller. The controller may activate at a low resolution a PPG measurement of the subject in relation to an ECG signal feature to identify a PPG signal feature location or region in the PPG measurement. The controller may further activate at a high resolution PPG measurement of the subject at the PPG signal feature region to identify the PPG signal feature, and may determine blood pressure and/or heart rate therefrom. Other embodiments may be disclosed and/or claimed.

Abstract: Embodiments of the present disclosure provide techniques and configurations for a wearable sensor apparatus. In one instance, the apparatus may comprise a flexible substrate and conductive fabric component that comprises a first length and that may be attachably mounted on the flexible substrate. The conductive fabric component, in response to a direct or indirect application of external force to the flexible substrate, may stretch between the first length and a second length that is greater than the first length, and generate an electric parameter based at least in part on an amount of the applied external force. Other embodiments may be described and/or claimed.

Abstract: Apparatuses, systems, and methods described herein can enable reliable estimation of pulse transit time (PTT) for a user in motion for cuffless blood pressure estimation. In one embodiment, a method involves receiving an electrocardiographic (ECG) signal and a photoplethysmographic (PPG) signal and detecting R-wave peaks in the ECG signal. The method further involves identifying multiple segments of the PPG signal based on detection of the R-wave peaks of the ECG signal, wherein a given segment of the PPG signal comprises multiple samples and is aligned with a corresponding R-wave. The method also involves generating an averaged PPG wave based on the multiple segments of the PPG signal, wherein a given element of the averaged PPG wave comprises an average of corresponding elements from the multiple segments of the PPG signal, and computing the blood pressure value based on the averaged PPG wave.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for providing liquid quality measurements. In one instance, the apparatus may comprise a printed circuit board (PCB) having first and second electrodes associated with the PCB, to directly contact with a liquid to obtain a plurality of electrical parameters of the liquid when electrical current passes between the first and second electrodes while in contact with the liquid, wherein the electrical parameters are associated with quality of the liquid. The PCB may further comprise circuitry disposed thereon and coupled to the first and second electrodes to collect the electric parameters of the liquid. Other embodiments may be described and/or claimed.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for opportunistic measurements of a user's physiological context, such as evaporation rate. In one instance, an apparatus may include a chamber with a first side and a second side opposite the first side. The chamber may be disposed with the first side in proximity to or in contact with a surface (e.g., body of the user). The first side may include a first opening to allow evaporation from the surface to enter the chamber. The chamber may include a second opening to allow the evaporation to exit the chamber. The chamber may further include first and second sensors (e.g., humidity sensors) disposed inside the chamber, to detect the evaporation from the surface. The apparatus may be configured to measure the evaporation based on evaporation readings provided by the sensors. Other embodiments may be described and/or claimed.

Abstract: Systems and methods may provide for a piezoelectric film that generates an excitation signal in response to pressure variations on a surface of the piezoelectric film and an analog front end coupled to the piezoelectric film, wherein the analog front end generates a first measurement signal based on the excitation signal. Additionally, a heart rate monitor may be coupled to the analog front end, wherein the heart rate monitor generates a heart rate measurement based on the first measurement signal. In one example, the analog front end includes a single stage amplifier.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for opportunistic measurements of a user's physiological context. In one instance, an apparatus may comprise a hand-held device, and include a surface that includes two or more electrodes disposed on the surface to contact with portions of the user's hands when the hands are in contact with the surface while the user holds the hand-held device, to obtain signals to be used to determine a physiological context of the user. The device may further include circuitry coupled with the two or more electrodes to identify at least two of the electrodes that are in contact with the user's respective portions of hands and, on identification, collect the signals to determine the physiological context using the identified electrodes while the contact between the portions of the hands and the identified electrodes is maintained. Other embodiments may be described and/or claimed.

Abstract: Apparatus and methods may provide for determining a value of chemical parameter. One or more light emitters may be positioned within a housing to emit light through an aperture of the housing. The emitted light may illuminate a color area of a structure that is separable from the housing, such as a test strip, a printed color reference, and so on. A color sensor may be positioned within the housing to capture reflected light and to convert the reflected light to an initial digitized color space that may be usable to determine a color shade of a color area. The reflected light may, for example, be captured independently at least of a dimension (e.g., predetermined size, shape, etc.) of the color area.

Abstract: Embodiments of the present disclosure provide techniques and configurations for an apparatus for providing a user's physiological context measurements. In one instance, the apparatus may include a physiological context measurement module including first and second electrodes, to obtain one or more parameters of physiological context of a user in response to a provision of contact of the first and second electrodes with a portion of the user's body while the physiological context measurement module is powered on; and a third electrode coupled with the module, which may be powered on in response to detection of contact between the user's body portion and the third electrode. The first, second, and third electrodes are disposed to facilitate simultaneous contact of the user's body portion with the electrodes, and collection of the one or more parameters of the physiological context while the simultaneous contact is maintained. Other embodiments may be described and/or claimed.

Abstract: An apparatus, article, and system, the apparatus including a housing, a 3-axis accelerometer contained in the housing, a medium storing program instructions, and a processor to execute the program instructions stored in the memory to receive a signal from the 3-axis accelerometer indicative of a user's activities, extract features from the received signals, classify the extracted features into a plurality of activity types, determine a total energy expenditure based on the classification of the extracted features; and provide a report of the total energy expenditure.

Abstract: Embodiments of the present disclosure provide techniques and configurations for a wearable sensor apparatus. In one instance, the apparatus may comprise a flexible substrate and conductive fabric component that comprises a first length and that may be attachably mounted on the flexible substrate. The conductive fabric component, in response to a direct or indirect application of external force to the flexible substrate, may stretch between the first length and a second length that is greater than the first length, and generate an electric parameter based at least in part on an amount of the applied external force. Other embodiments may be described and/or claimed.