Abstract: A method and a system for determining an in vivo transit distance and a corresponding transit time for an arterial pulse. An example system comprises a radar receiver connected to a processor to perform time-resolved measurements of reflections of wave pulses and to spectrally filter the reflections to select spectral components associated with the arterial pulse. The resulting signal samples are then organized into groups corresponding to different wave pulses, and the groups are processed to identify samples corresponding to a first arterial pulse point and a second arterial pulse point on the body of a subject, and the identified samples are further processed to determine the in vivo transit distance and the corresponding transit time for the arterial pulse. In some embodiments, a collection of arterial pulse points detected by the measurements may be mapped onto a reference constellation for a more-accurate determination of the in vivo transit distance.

Abstract: A method, apparatus and computer program product are provided for detecting eye movement with a wearable device attachable to an eyelid. The wearable device may include an arrangement of sensors, including any combination of piezoelectric sensors, accelerometers, and/or any other type of sensor. An external device may be provided for processing sensor data. The wearable device and/or external device may analyze the sensor data to generate eyeball movement data, and to differentiate first directional data and second directional data. The first directional data may be considered as movement occurring substantially horizontally and the second directional data may be considered as movement occurring substantially vertically. The wearable device and/or external device may therefore provide data regarding sleep cycles of the user.

Abstract: A method, apparatus and computer program product are provided for determining an intimate activity has occurred based on data collected with a radar detection device. Data relating to sleep patterns, such as of a sleep study participant, may be collected with a radar detection device in close proximity to a bed or other reference point. The data may be processed to determine occurrence of intimate activities, based on detected movements and/or positions of body profiles relative to each other and/or to a common reference point. The data corresponding to intimate activities may therefore be appropriately processed, such as by being excluded from the sleep record data to provide privacy to a user.

Abstract: A method comprising: at a processor, determining an in vivo transit distance for an arterial pulse between a first arterial pulse point and a second arterial pulse point using a first distance measured to the first arterial pulse point and a second distance measured to a second arterial pulse point; and at the processor, determining a transit time for an arterial pulse between the first arterial pulse point and the second arterial pulse point, based on one or more transmitted detecting and ranging wave pulses reflected from the first arterial pulse point and from one or more transmitted detecting and ranging wave pulses reflected from the second arterial pulse point.

Abstract: A method, apparatus and computer program product are provided for detecting eye movement with a wearable device attachable to an eyelid. The wearable device may include an arrangement of sensors, including any combination of piezoelectric sensors, accelerometers, and/or any other type of sensor. An external device may be provided for processing sensor data. The wearable device and/or external device may analyze the sensor data to generate eyeball movement data, and to differentiate first directional data and second directional data. The first directional data may be considered as movement occurring substantially horizontally and the second directional data may be considered as movement occurring substantially vertically. The wearable device and/or external device may therefore provide data regarding sleep cycles of the user.