Nokia Technologies Oy

Kim Blomqvist

Mikko Johannes Honkala

Antti Salo

Helena Pohjonen

Harri Lindholm

Pekka Korpinen

Chris Bower

David Bitauld

Leo Karkkainen

Harri Lasarov

Leo Kärkkäinen

Troels Roennow

Markku Rouvala

Khan Baykaner

Jarkko Rouvinen

Satu Rajala

Kiti Müller

Pellervo Ruponen

An apparatus comprising: a displacement current sensor configured to measure for a subject one or more sensed electrical signals; and circuitry configured to process the one or more sensed electrical signals to obtain an electrocardiogram signal and a variable impedance signal caused by an arterial pulse wave.

Bio-signal detection

An apparatus comprising: a first displacement current sensor comprising a first sensing electrode and a first guard electrode, wherein the first displacement current sensor is configured to measure a first sensed signal dependent upon electrical activity of a subjects heart; a second displacement current sensor comprising a second sensing electrode and a second guard electrode, wherein the second displacement current sensor is configured to measure a second sensed signal dependent upon electrical activity of a subjects heart; and circuitry configured to process at least the first sensed signal to compensate for artefacts arising from motion of the subject.

An apparatus and electronic circuitry wherein the apparatus includes a first electrode arranged to enable an output indicative of a bioelectrical signal to be provided; a second electrode; and a deformable material positioned between the first electrode and the second electrode wherein the deformable material is positioned within the apparatus such that deformation of the deformable material causes a change in charge distribution across the first electrode and second electrode to enable an output indicative of a biomechanical signal to be provided by the apparatus.

Apparatus and electronic circuitry for sensing biosignals

A method, apparatus and computer program, the method comprising: receiving a first biopotential signal obtained by a first capacitive sensor; receiving a second biopotential signal obtained by a second capacitive sensor, the first capacitive sensor and the second capacitive sensor being positioned at different locations on a subject; synchronising biopotential signals obtained by the first capacitive sensor and the second capacitive sensor by applying a time adjustment to biopotential signals obtained by at least one of the first capacitive sensor or the second capacitive sensor; wherein features in at least one of the first biopotential signal and the second biopotential signal are used to synchronise the biopotential signals obtained by the first capacitive sensor and the second capacitive sensor.

Method, apparatus and computer program for synchronizing biopotential signals

An apparatus, method and computer program is described comprising: varying a magnetic field strength of a magnetic field applied to a subject; determining a rate of power loss of the magnetic field, wherein the rate of power loss is a function of the varying magnetic field strength; and providing an output signal based on the determined rate of power loss, wherein the output signal comprises information relating to a conductivity distribution of the subject.

Providing an output relating to conductivity distribution

An apparatus with a first photodetector and a second photodetector is provided. The apparatus is configured to receive light, and the first photodetector is configured to detect a first portion of the light. The first photodetector and the second photodetector are in a stacked arrangement and the apparatus is configured to pass a second portion of the light through the first photodetector to the second photodetector. The apparatus further includes an optical blocking filter configured to filter the second portion of the light prior to the second portion of the light arriving at the second photodetector.

Detector arrangement suited for optical sensors

An apparatus comprising: at least one electrode, having a first potential, arranged to sense a biosignal; a conductive shield provided over the at least one electrode where the conductive shield is configured to be driven to a second potential wherein the second potential is equivalent to the first potential plus a multiple of an inverted common mode voltage; and wherein the conductive shield is coupled to a drain to enable triboelectric charges to be dissipated.

An electrode for a user wearable apparatus; the electrode comprising: a conductive part comprising conductive material, wherein the conductive part is configured to provide electrical connection to electronic components of the user wearable device, and an opening configured to provide an optical connection to electronic components of the user wearable apparatus through the electrode.

Electrode for a user wearable apparatus

An approach is provided for synchronizing an impedance cardiography ('ICG') measurement period with an electrocardiography ('ECG') signal to reduce patient () auxiliary current. The approach involves measuring an ECG signal of a patient via an ECG device (). The approach also involves processing the ECG signal to cause, at least in part, a detection of one or more ECG features of the signal. The approach further involves synchronizing a start, a stop, or a combination thereof of a measurement of an ICG signal of the patient via an ICG device () based, at least in part, on the detection of the one or more ECG features. The measurement of the ICG signal includes injecting an electrical current into the patient () for a duration of the measurement.

Method and apparatus for synchronizing impedance cardiography with electrocardiography to lower patient auxiliary current

According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store an identifier of the apparatus, at least one processing core configured to obtain, from sensor information, a service identifier and a session identifier, compile a message addressed to a service provider associated with the service identifier, the message comprising the identifier of the apparatus and the session identifier, and cause transmission of the message toward the service provider.

Sensor-based interaction

An apparatus comprising: a connector configured to be electrically and mechanically connectable to an electrical terminal, wherein the connector comprises a resistive material. The connector comprises respective first and second electrical contacts, wherein the resistive material is configured to provide a direct current connection for the flow of electric current between the first and second electrical contacts.

Apparatus, system and method for electrical connection

According to an example embodiment of the present invention there is provided an apparatus comprising a receiver configured to receive a pair of cryptographic keys comprising a public key and a secret key, the public key being cryptographically signed, a memory configured to store the secret key, and a transmitter configured to send the cryptographically signed public key to a correspondent node and participate in establishment of a cryptographic network protocol session based at least in part on the pair of cryptographic keys.

Key management

In some example embodiments, there may be provided an apparatus. The apparatus may include a chamber including a first cavity and a second cavity, wherein the chamber further includes a first fluid suspended in a second fluid; a first electrode adjacent to the first cavity; a second electrode adjacent to the second cavity; a third electrode configured to provide a common electrode to the first electrode and the second electrode; and at least one coil adjacent to at least one of the first cavity or the second cavity, wherein an inductance value of the coil is varied by at least applying a driving signal between the common electrode and the first electrode and/or the second electrode. Related methods, systems, and articles of manufacture are also disclosed.

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Espoo, Finland

Kim Blomqvist