公开(公告)号：US09829375B2

公开(公告)日：2017-11-28

申请号：US14648924

申请日：2013-11-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Xavier Louis Marie Antoine Aubert ,  Mauro Barbieri ,  Henning Maass ,  Guido Josef Müsch ,  Folke Charlotte Noertemann ,  Elsa Inger Stapel Most ,  Leo Jan Velthoven

IPC: G01J1/08 ,  G01J1/42

CPC classification number: G01J1/08 ,  G01J1/4204 ,  G01J2001/083

Abstract: The present invention relates to a light sensing system for sensing ambient light intensity, comprising a light sensing device with at least one light sensor and a calibration device for calibrating the sensor. The calibration device comprises at least one light source that emits light with a standard intensity. The invention is further related to a corresponding method for calibrating a light sensing device, comprising the illumination of the light sensor of the light sensing device with light that has a standard intensity, the comparison of the output intensity signal of the sensor with an expected signal that corresponds to the standard intensity, and the matching of the output intensity signal of the sensor to the expected signal by adjusting a gain parameter of the sensor.

公开(公告)号：US10376207B2

公开(公告)日：2019-08-13

申请号：US15036160

申请日：2014-12-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Xavier Louis Marie Antoine Aubert ,  Henning Maass ,  Guido Josef Muesch

IPC: G06F19/00 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/11 ,  G16H50/50 ,  A61B5/021 ,  A61B5/024

Abstract: The invention relates to an apparatus (100) and a method for generating a model output x(ti) describing a circadian rhythm of a person (P) at a time ti. In a preferred embodiment, a light sensor providing the photic exposure (L(ti)) and an activity signal (A(ti)) indicating the current level of activity of the person (P) at the time ti based on motion measurements (via an accelerometer) are used to calculate a wakefulness variable (σ) that indicates if the person (P) is awake or sleeping. The wakefulness variable is then used to determine a driving term (N(t)) for a driven oscillator model (135) which simulates the model output x(t) under the joint influence of light and activity.

公开(公告)号：US10072973B2

公开(公告)日：2018-09-11

申请号：US15301028

申请日：2015-03-30

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Henning Maass ,  Guido Josef Müsch ,  Xavier Louis Marie Antoine Aubert ,  Elsa Inger Stapel Møst ,  Leo Jan Velthoven ,  Folke Charlotte Noertemann ,  Mauro Barbieri ,  Enrique Antonio Gil Ponce

IPC: G01J1/42 ,  G01J1/02

CPC classification number: G01J1/4204 ,  G01J1/0219 ,  G01J1/0228 ,  G01J1/4228 ,  G01J2001/4266

Abstract: The present disclosure pertains to a light sensing system configured to determine an amount of ambient light exposure experienced by a subject. The present invention wirelessly exchanges light information between different wearable devices of the same user and/or between devices of different users. Local and/or central light profile databases are built-up by the system and are shared between the devices so that light data that is typical for a location at a specific time of day and year can be used to estimate current ambient light levels for situations in which no measurement can be taken.

公开(公告)号：US09752930B2

公开(公告)日：2017-09-05

申请号：US14647842

申请日：2013-11-22

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Henning Maass ,  Guido Josef Müsch

IPC: G01J1/04 ,  G01J1/44 ,  G01J1/02 ,  G01J1/42

CPC classification number: G01J1/44 ,  G01J1/0233 ,  G01J1/0242 ,  G01J1/0271 ,  G01J1/0425 ,  G01J1/4204 ,  G01J1/4228

Abstract: The invention relates to a wrist-worn device (10) for sensing ambient light intensity, comprising a plurality of light receivers arranged at different positions of the wrist-worn device (10) in different orientations to receive light from different directions (+X, −X; +Y, −Y; −Y; +Z, −Z).

公开(公告)号：US09797768B2

公开(公告)日：2017-10-24

申请号：US14648739

申请日：2013-11-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Henning Maass ,  Guido Josef Müsch

IPC: G01J1/44 ,  G01J1/02 ,  A61B5/00 ,  G01J1/42 ,  A61B5/16

CPC classification number: G01J1/0228 ,  A61B5/165 ,  A61B5/4857 ,  A61B5/681 ,  A61B2560/0242 ,  A61B2560/0475 ,  G01J1/0233 ,  G01J1/4204 ,  G01J2001/0257

Abstract: The invention relates to a light sensing device for sensing ambient light intensity, comprising at least one ambient light sensor and an occlusion detector for detecting an object occluding the ambient light sensor. The invention is further related to a corresponding method for sensing ambient light intensity.