公开(公告)号：US20240000325A1

公开(公告)日：2024-01-04

申请号：US18318203

申请日：2023-05-16

Applicant: Nokia Technologies Oy

Inventor： Hoang TRUONG ,  Alessandro MONTANARI ,  Fahim KAWSAR

IPC: A61B5/021 ,  A61B7/04 ,  A61B5/00

CPC classification number: A61B5/02125 ,  A61B5/02427 ,  A61B5/6817 ,  A61B7/04

Abstract: An apparatus comprising: at least one photoplethysmography sensor configured to determine pulse information of a user; at least one audio sensor configured to determine heart sound information of the user; and means for determining, based, at least in part, on the pulse information and the heart sound information, blood pressure information of the user, wherein the at least one photoplethysmography sensor and the at least one audio sensor are comprised in an ear-worn device.

公开(公告)号：US20230292069A1

公开(公告)日：2023-09-14

申请号：US18180091

申请日：2023-03-07

Applicant: Nokia Technologies Oy

Inventor： Alessandro MONTANARI ,  Hoang TRUONG

IPC: H04R29/00 ,  H04R1/10 ,  G05D16/20 ,  G05B19/416

CPC classification number: H04R29/00 ,  H04R1/1041 ,  H04R1/1016 ,  G05D16/2013 ,  G05B19/416 ,  H04R2460/11 ,  G05B2219/45006

Abstract: An apparatus, method and computer program is described for: receiving, over a period of time, a signal indicative of a pressure measured by a pressure sensor of an earpiece, the earpiece comprising an ear tip configured for insertion into an ear canal of a user, wherein the pressure sensor is arranged to measure a pressure within the ear canal whilst the ear tip is inserted into the ear canal; determining one or more characteristics of the signal; and determining a measure of a quality of a seal between the earpiece and the ear canal based on the one or more characteristics.