公开(公告)号：US10568505B2

公开(公告)日：2020-02-25

申请号：US15840254

申请日：2017-12-13

Applicant: Nokia Technologies Oy

Inventor： Swetha Muniraju

IPC: A61B5/103 ,  A61B3/113 ,  A61B5/0496 ,  A61B5/11 ,  A61B5/00 ,  A61F2/14

Abstract: A method, apparatus and computer program product are provided for detecting eye movement with a wearable device attachable to an eyelid. The wearable device may include an arrangement of sensors, including any combination of piezoelectric sensors, accelerometers, and/or any other type of sensor. An external device may be provided for processing sensor data. The wearable device and/or external device may analyze the sensor data to generate eyeball movement data, and to differentiate first directional data and second directional data. The first directional data may be considered as movement occurring substantially horizontally and the second directional data may be considered as movement occurring substantially vertically. The wearable device and/or external device may therefore provide data regarding sleep cycles of the user.

公开(公告)号：US11660008B2

公开(公告)日：2023-05-30

申请号：US15869587

申请日：2018-01-12

Applicant: Nokia Technologies Oy

Inventor： Durgaprasad Shamain ,  Klaus Doppler ,  Swetha Muniraju ,  Eric Torkildson

IPC: A61B5/021 ,  A61B5/0285 ,  A61B5/00 ,  A61B5/0507 ,  A61B5/02 ,  A61B5/024

CPC classification number: A61B5/02125 ,  A61B5/0059 ,  A61B5/024 ,  A61B5/02007 ,  A61B5/0285 ,  A61B5/02108 ,  A61B5/0507 ,  A61B5/725 ,  A61B5/7253

Abstract: A method and a system for determining an in vivo transit distance and a corresponding transit time for an arterial pulse. An example system comprises a radar receiver connected to a processor to perform time-resolved measurements of reflections of wave pulses and to spectrally filter the reflections to select spectral components associated with the arterial pulse. The resulting signal samples are then organized into groups corresponding to different wave pulses, and the groups are processed to identify samples corresponding to a first arterial pulse point and a second arterial pulse point on the body of a subject, and the identified samples are further processed to determine the in vivo transit distance and the corresponding transit time for the arterial pulse. In some embodiments, a collection of arterial pulse points detected by the measurements may be mapped onto a reference constellation for a more-accurate determination of the in vivo transit distance.

公开(公告)号：US20180177393A1

公开(公告)日：2018-06-28

申请号：US15840254

申请日：2017-12-13

Applicant: Nokia Technologies Oy

Inventor： Swetha Muniraju

IPC: A61B3/113 ,  A61B5/0496 ,  A61B5/00 ,  A61B5/11 ,  A61F2/14

CPC classification number: A61B3/113 ,  A61B5/0496 ,  A61B5/1103 ,  A61B5/1114 ,  A61B5/1121 ,  A61B5/1123 ,  A61B5/4812 ,  A61B5/4815 ,  A61B5/6821 ,  A61B5/6832 ,  A61B5/6898 ,  A61B5/7207 ,  A61B5/721 ,  A61B5/7278 ,  A61B2560/0214 ,  A61B2560/0223 ,  A61B2560/0475 ,  A61B2562/0209 ,  A61B2562/0219 ,  A61B2562/0261 ,  A61B2562/063 ,  A61F2/14

Abstract: A method, apparatus and computer program product are provided for detecting eye movement with a wearable device attachable to an eyelid. The wearable device may include an arrangement of sensors, including any combination of piezoelectric sensors, accelerometers, and/or any other type of sensor. An external device may be provided for processing sensor data. The wearable device and/or external device may analyze the sensor data to generate eyeball movement data, and to differentiate first directional data and second directional data. The first directional data may be considered as movement occurring substantially horizontally and the second directional data may be considered as movement occurring substantially vertically. The wearable device and/or external device may therefore provide data regarding sleep cycles of the user.