A monitoring device for physiological signal monitoring includes a first light receiving and transmitting device and a control device. The first light receiving and transmitting device generates a first light signal to an object and receives a second light signal to generate a first electrical signal. The control device controls the first light receiving and transmitting device to generate the first light signal in a first period, and controls the first light receiving and transmitting device to receive the second light signal to generate the first electrical signal in a second period. The invention further includes an operating method for physiological signal monitoring.

The invention relates to a method of operating a long-term blood pressure measurement device having a measurement sensor for detecting a pulse wave signal, having a measurement sensor for body current signals, having a pressure cuff for a non-invasive determination of the blood pressure, having a control and evaluation unit for determining blood pressure values, on the one hand from signals acquired by means of the pressure cuff (pressure cuff signals), and, on the other hand from a pulse wave transit time that is derived from body current signals and pulse wave signals, and having a memory for storing blood pressure values.

An in-ear stimulation system including a first device configured to be worn at least partially in a first ear canal of a subject and a second device configured to be worn at least partially in a second ear canal of the subject. Each of the first device and the second device includes: at least one in-ear active electrode configured to receive a bio-signal and at least one in-ear reference electrode configured to receive a bio-signal; at least one stimulation device configured for emitting at least one electrical or sensory stimulus; and an electronic system configured to detect at least one bio-signal pattern from the bio-signals measured from the electrodes.

Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

A hearing device includes: a first microphone configured to provide a first input signal; a first processor unit configured to provide a processed signal based on the first input signal to compensate for a hearing loss of a user of the first hearing device; a receiver configured to output sound based on the processed signal; and a first sensor configured to provide a first sensor signal for detecting an atrial fibrillation condition of the user. An electronic device includes: a communication interface configured to communicate with a hearing device; and a processing unit configured to obtain, via the communication interface, information associated with an atrial fibrillation condition of a user, the information comprising a sensor data transmitted from the hearing device and/or information indicating the atrial fibrillation condition detected based on the sensor data; wherein the accessory device is configured to output a signal indicative of the atrial fibrillation condition.

A hearing assistive system including a first hearing assistive device adapted for wireless communication with second hearing assistive device, wherein the first hearing assistive device and the second hearing assistive device have at least one sensor adapted for acquiring a physiological signal each. The first hearing assistive device is adapted for providing a synchronization signal to the second hearing assistive device and instructing the second hearing assistive device to acquire the physiological signal based on timing instructions. The second hearing assistive device is adapted for acquiring the physiological signal by means of the sensor according to the received timing instructions and transmitting the acquired physiological signal wirelessly to the first hearing assistive device. The first hearing assistive device includes a processor for processing the synchronized, physiological signals acquired by sensors of the first hearing assistive device and the second hearing assistive device and synchronized via wireless communication.

A system includes at least one earpiece having at least one sensor, at least one speaker, and at least one processor capable of ascertaining a desired position for a user's head in order to guide the user as to the desired position for the user's head. A method it determining a current orientation of a user's head, calculating a desired position for the user's head in relation to the current orientation of the user's head, creating an audio signal containing instructions to guide the user as to the desired position for the user's head, and transmitting the audio signal to a user's ears.

In-ear sound pressure level, SPL, is determined that is caused by output audio being converted into sound by a headset worn by a user. The in-ear SPL is converted into a sound sample having units that are suitable for evaluating sound noise exposure. These operations are repeated to produce a sequence of sound samples during playback. This sequence of sound samples is then written to a secure database. Access to the database is authorized by the user. Other aspects are also described and claimed.

An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.

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.