An ear-worn device includes a speaker, an optical emitter, an optical detector, a processor, and a housing configured to be positioned within an ear of a subject, wherein the housing encloses the speaker, optical emitter, optical detector, and processor. The housing includes at least one window that exposes the optical emitter and optical detector to the ear of the subject, and the housing includes at least one aperture through which sound from the speaker can pass. Light transmissive material is located between the optical emitter and the at least one window and is configured to deliver light emitted from the optical emitter to an ear region of the subject at one or more predetermined locations. Light transmissive material is positioned between the optical detector and the at least one window and is configured to collect light external to the housing and deliver the collected light to the optical detector.

An ear-wearable electronic device comprises a shell having a uniquely-shaped outer surface that corresponds uniquely to an ear geometry of a wearer of the device. The shell comprises a window through a proximal portion of the shell and positioned at ear canal tissue when the device is deployed in the wearer's ear. An optical sensor, such as a photoplethysmograph (PPG) sensor, is disposed in the window. A biasing member has a uniquely-shaped outer surface that corresponds uniquely to a geometry of at least a portion of a pinna of the wearer's ear. The biasing member is configured to generate a biasing force sufficient to maintain static positioning of the optical sensor relative to the ear canal tissue during wearer body and jaw movement.

The disclosure relates to a device and method of obtaining an electrocardiogram for a subject. The method comprises receiving electrical signals from at least two head-mounted sensors; and analysing said electrical signals to resolve shape and timing information for each of the P-, Q-, R-, S-, and T-waves available for the subject over a number of cardiac cycles, to derive a composite electrocardiogram, ECG, in which the composite electrocardiogram is derived using signals only from said head-mounted sensors.

Ear buds may have sensors to gather orientation information such as accelerometer measurements during user movements. A host electronic device may communicate wirelessly with the ear buds and may form part of an ear bud system that supplies the user with coaching and feedback while evaluating user performance of a head movement routine or other exercise routine. During operation, the ear buds may gather accelerometer data in a first reference frame such as a reference frame associated with the ear buds and may use a rotation matrix to rotate the data in the first reference frame into a second reference frame such as a neutral reference frame with a fixed orientation to the earth. The data in the neutral reference frame may be analyzed using a user head pose look-up table to categorize measured user head positions as corresponding to respective user head poses.

A middle ear sound transmission characteristics evaluation system includes a probe; a measuring probe that includes an actuator that vibrates the probe and a force sensor that outputs a voltage in accordance with a reaction force exerted to the actuator when a tip of the probe is brought into contact with ossicles; an electrode that is installed on or near a round window and detects a potential value of a cochlear microphonic when vibration is applied to the ossicles by the probe; a database that stores a sensor voltage value output by the force sensor before surgical treatment, the potential value detected by the electrode, and surgical details; and a surgical details proposing unit that proposes selected surgical details on the basis of the magnitude of at least one of the sensor voltage value and the potential value measured before surgery with reference to the database.

Systems and methods for assisting user with hearing by amplifying sound using an amplifier with gain and amplitude controls for a plurality of frequencies; and applying a learning machine to identify an aural environment and adjust the amplifiers for optimum hearing.

An assembly of at least one radiation detector, at least one radiation emitter and a housing configured to be positioned inside the ear canal of a person or animal, the detector(s) and emitter(s) being provided in or on the housing, the emitter(s) being configured to emit radiation away from the housing and the detector(s) being configured to receive radiation directed toward the housing. No overlap may be provided between the field of view of the radiation detector(s) and the emitter(s), such as by providing a blocking element.

A removable wearable device sleeve includes a sleeve body, one or more sensors, and an interface for operative communication with the wearable device. A removable sleeve includes a sleeve body having a front element having a first aperture, a back element having a second aperture, a tubular element having a first end and a second end with a third aperture, and one or more back elements define a cavity to encase an earpiece, an interface, and a sensor, wherein the sensor communicates sensor readings to the wearable device through the interface. A method of placing a sensor configured to communicate with a wearable device onto the wearable device includes providing a removable sleeve and inserting the wearable device through the first aperture of the front element into the cavity of the removable sleeve to provide a removable wearable device sleeve.

The invention relates to an infrared thermometer and a forehead temperature correction and measurement method. The infrared thermometer comprises a temperature sensor, a corrector, a processor, and a display device. The temperature sensor is configured for measuring an actual temperature. In a correction mode, the corrector records actual temperature of an ear and a forehead of a user as an ear temperature and a forehead temperature respectively. In a forehead temperature measurement mode, the processor generates a body temperature according to a measured forehead temperature and the forehead temperature correction value, and the display device displays the body temperature. The infrared thermometer and the forehead temperature correction and measurement method can realize accurate measurement of the forehead temperature.

Embodiments are directed to an electronic device configured to measure temperature from within an ear canal having a first bend, a second bend, and a tympanic membrane. The device comprises an enclosure comprising an in-canal section dimensioned for deployment in the ear canal. The in-canal section comprises a trough extending axially along at least a portion of the in-canal section and arranged to be positioned between the first bend and the tympanic membrane when the in-canal section is fully deployed in the ear canal. A temperature sensor is disposed in the trough. The temperature sensor comprises a flexible circuit board, a distal temperature sensor disposed on the flexible circuit board, and a proximal temperature sensor disposed on the flexible circuit board and situated proximal of, and spaced apart from, the distal temperature sensor in an outer ear direction.