公开(公告)号：US20190298179A1

公开(公告)日：2019-10-03

申请号：US16351018

申请日：2019-03-12

Applicant: Nokia Technologies Oy

Inventor： Satu RAJALA ,  Niku OKSALA ,  Harri LINDHOLM

IPC: A61B5/02 ,  A61B5/00 ,  A61B5/11

Abstract: An apparatus and method includes: obtaining a ballistocardiographic signal for a subject; determining an I-J interval from the ballistocardiographic signal, including detecting peaks and troughs in the ballistocardiographic signal; and providing an output indicative of a left ventricular ejection time based on the determined I-J interval.

公开(公告)号：US20210161477A1

公开(公告)日：2021-06-03

申请号：US16770706

申请日：2018-12-10

Applicant: Nokia Technologies Oy

Inventor： Michael WOLDEGEBRIEL ,  Mikko HONKALA ,  Leo KARKKAINEN ,  Satu RAJALA ,  Harri LINDHOLM

IPC: A61B5/00 ,  A61B5/353 ,  A61B5/352 ,  A61B5/355 ,  A61B5/358 ,  G06K9/62 ,  G16H50/20

Abstract: A method of detection of a recurrent feature of interest within a signal including: obtaining evidence, based on a signal, the evidence including a probability density function for each of a plurality of parameters for parameterizing the signal, including at least one probability density function for a parameter, of the plurality of parameters, that positions a feature of interest within signal data of the signal; parameterizing a portion of the signal data from the signal based upon a hypothesis that a point of interest in the signal data is a position of the feature of interest; determining a posterior probability of the hypothesis being true given the portion of the signal data by combining a prior probability of the hypothesis and a conditional probability of observing the portion of the signal data given the hypothesis.

公开(公告)号：US20210145298A1

公开(公告)日：2021-05-20

申请号：US16622608

申请日：2018-06-13

Applicant: Nokia Technologies Oy

Inventor： Antti Oskari SALO ,  Kim BLOMQVIST ,  Satu RAJALA

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/0295 ,  A61B5/318 ,  A61B7/00 ,  A61B5/11

Abstract: A method comprising: determining a time difference between detecting a heart-related signal of a subject and detecting a vasculature signal of the subject at a first one of a plurality of distributed sensors; using a controller to automatically estimate an in-vivo distance from the heart of the subject to the first one of the plurality of sensors in dependence upon a determined unconstrained body position of the subject; and calculating a pulse wave velocity.

公开(公告)号：US20190099097A1

公开(公告)日：2019-04-04

申请号：US16136522

申请日：2018-09-20

Applicant: Nokia Technologies Oy

Inventor： Kim BLOMQVIST ,  Satu RAJALA

IPC: A61B5/04 ,  A61B5/00 ,  A61B5/113 ,  A61B5/11 ,  A61B5/0478

Abstract: 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.

公开(公告)号：US20210113114A1

公开(公告)日：2021-04-22

申请号：US17040162

申请日：2019-03-06

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Matej MURGAS ,  Satu RAJALA

IPC: A61B5/091 ,  A61B5/00 ,  A61B5/08

Abstract: According to various, but not necessarily all, embodiments there is provided a respiratory volume measurement system. The respiratory volume measurement system comprises: at least one motion sensor and a machine learning system. The at least one motion sensor is configured to be placed on a chest wall of a subject to produce at least one sensor output signal dependent upon respiratory motion of the chest wall of the subject. The machine learning system is configured to receive at least the sensor output signal as an input and to produce at least a respiration measurement output, different to the sensor output signal, that provides at least a measure of respiration volume of the subject.

公开(公告)号：US20210030309A1

公开(公告)日：2021-02-04

申请号：US16969029

申请日：2019-02-08

Applicant: Nokia Technologies Oy

Inventor： Harri LINDHOLM ,  Satu RAJALA

IPC: A61B5/11 ,  A61B5/02 ,  A61B5/0225

Abstract: An apparatus and a method are described in which a signal is received from a gyroscope sensor mounted on a subject. The gyroscope sensor is configured to measure rotational movement of the subject's heart, the signal being indicative of a left ventricular twist of the subject's heart. A change in the left ventricular twist of the subject's heart caused by occlusion of blood flow by an arterial occlusion device configured to selectively occlude blood flow of the subject is determined.