Koninklijke Philips Corporation N.v.

Trumpf Photonic Components Gmbh

Robert Boschgmbh

Philips Lighting Holding B.v.

Philips Photonics Gmbh

Philips Intellectual Property & Standards Gmbh

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Johannes Hendrikus Maria Spruit

Gerben Kooijman

Ronaldus Maria Aarts

Mark Thomas Johnson

Edgar Martinus Van Gool

Menno Willem Jose Prins

Petrus Theodorus Jutte

Alexander Marc Van Der Lee

Steven Charles Deane

Albertus Cornelis Den Brinker

Koray Karakaya

Armin Gerhard Kohlrausch

Jan Frederik Suijver

Jeroen Herman Lammers

Arnoldus Johannes Martinus Jozeph Ras

Joachim Wilhelm Hellmig

Jasper Van Dorp Schuitman

Michel Cornelis Josephus Marie Vissenberg

Martin John Edwards

Jonathan Alambra Palero

Ronald Rietman

Fetze Pijlman

Yannyk Parulian Julian Bourquin

Olaf Thomas Johan Antonie Vermeulen

Marco Baragona

Patrick Kechichian

Kiran Hamilton J Dellimore

Joris Adelbert Maria Nieuwendijk

Hendrikus Hubertus Petrus Gommans

Daniel Willem Elisabeth Schobben

Joachim Kahlert

Adrianus Wilhelmus Dionisius Maria Van Den Bijgaart

Robert Wolf

Michiel Johannes Jongerius

Hans Spruit

Michel Paul Barbara Van Bruggen

Lili-Marjan Brockhuis

Cornelus Hendricus Bertus Arnoldus Van Dinther

Robert Weiss

Stefan Henricus Swinkels

Amir Hussein Rmaile

Pascal De Graaf

Soren Sofke

Clemens Johannes Maria Lasance

Rene Henk Van Der Woude

Rico Srowik

Lili-Marjan Boelens-brockhuis

Pieter Horstman

Cornelis Henridricus Bertus Arnoldus Van Dinther

Harold Johannes Antonius Brans

Lucja Elzbieta Segaar

Samer Bou Jawde

Karin Klabunde

Johannes Hendrikus Maria Spruit Spruit

Clemens J M Lasance

Joris A M Nieuwendijk

René Henk Van Der Woude

A laser sensor module includes a laser diode configured emit a laser beam, an electrical driver configured to supply the laser diode with a driving current to stimulate emission of the laser beam, a detector, and an optical arrangement configured to focus the laser beam to a focus region. The laser diode is arranged to emit the laser beam through the optical arrangement to the focus region. The optical arrangement comprises an emission window. The detector is arranged to determine an interference signal. The laser sensor module comprises a soiling detection unit configured to vary a wavelength of the laser beam with a variation amplitude over a predetermined time period to provide a soiling detection signal indicative of a soiling of the emission window based on an interference signal during the wavelength variation of the laser beam.

Laser sensor module with soiling detection

A method of monitoring an operation of an electric breast pump () using an external smart device () is provided. The external smart device () comprises a vibration detection unit () for detecting vibrations emitted from the breast pump (). The detected vibrations are analyzed to extract information regarding the operation of the electric breast pump (). The information comprises at least one of mode of operation and settings of the modes of operation of the breast pump (). The extracted information can be outputted.

Method of monitoring an operation of an electric breast pump

There is provided an apparatus () for detecting subjects with disordered breathing. The apparatus () comprises one or more processors () configured to acquire an acoustic signal from an acoustic sensor () in an environment, determine a plurality of acoustic signal components from the acquired acoustic signal and determine a plurality of signal envelopes or energy signals based on the acoustic signal components. One or more processors () are also configured to analyze the determined plurality of signal envelopes or energy signals to detect whether there are one or more subjects in the environment with disordered breathing.

Detecting subjects with disordered breathing

The invention relates to a method for detecting particles, having the steps of: receiving (S) a measurement signal; calculating (S) at least one estimated noise value using the received measurement signal; and detecting (S) the particles using the measurement signal on the basis of at least one detection criterion, wherein the at least one detection criterion depends on the at least one calculated estimated noise value.

Method and apparatus for detecting particles

A method of characterizing a patient's disordered breathing during a sleeping period includes performing a first partial characterization of a time axis of an audio signal in order to learn the most prominent and highly relevant events. Only at a later stage, i.e., after sufficient observation of the highly relevant events, is a full segmentation of the entire time axis actually carried out. Linear prediction is used to create an excitation signal that is employed to provide better segmentation than would be possible using the original audio signal alone. Warped linear prediction or Laguerre linear prediction is employed to create an accurate spectral representation with flexibility in the details provided in different frequency ranges. A resonance probability function is generated to further characterize the signals in order to identify disordered breathing. An output includes a characterization in any of a variety of forms of identified disordered breathing.

Method of characterizing sleep disordered breathing

A laser sensor module measures a particle density of particles with a size of less than 20 &#x3bc;m. The laser sensor module includes: a laser configured to emit a laser beam; a detector; and an optical arrangement. The optical arrangement is configured to focus the laser beam to a focus region. The laser is configured to emit the laser beam through the optical arrangement to the focus region. The optical arrangement has an emission window. The detector is configured to determine an interference signal of an interference of reflected laser light with emitted later light of the laser beam. The laser sensor module is configured to provide an indication signal of a soiling of the emission window based on the interference signal determined during a mechanical excitation of the emission window.

Laser sensor module with indication of readiness for use

The invention describes a laser sensor or laser sensor module () using self-mixing interference for particle density detection, a related method of particle density detection and a corresponding computer program product. The invention further relates to devices comprising such a laser sensor or laser sensor module. It is a basic idea of the present invention to detect particles by means of self-mixing interference signals and determine a corresponding particle density. In addition at least a first parameter related to at least one velocity component of a velocity vector of the particles is determined in order to correct the particle density if there is the relative movement between a detection volume and the particles. Such a relative movement may for example be related to a velocity of a fluid transporting the particles (e.g. wind speed). Furthermore, it is possible to determine at least one velocity component of the velocity of the particles based on the self-mixing interference signals.

Laser sensor for particle detection

A method of measuring a particle density of particles includes emitting, by a laser, a laser beam directed to a mirror, redirecting the laser beam by the mirror with a predetermined periodic movement, and focusing the laser beam to a detection volume by an optical imaging device. The method further includes determining a self mixing interference signal of an optical wave within a laser cavity if the self mixing interference signal is generated by laser light of the laser beam reflected by at least one of the particles and suppressing a false self mixing interference signal for particle detection if the self mixing interference signal is caused by a disturbance in an optical path of the laser beam. The false self mixing signal caused by the disturbance in the optical path of the laser beam is suppressed in a defined range of angles of the mirror during the periodic movement.

Method of suppressing false positive signals during self mixing interference particle detection

A toothbrush () includes a brushhead (), a first force sensor (A) for measuring a first force exerted by the brushhead at a first angle relative to a tooth and a second force sensor (B) for measuring a second force exerted by the brushhead at a second angle relative to the tooth, the second angle being different than the first angle, and a processing unit (). The processing unit is structured to: (i) receive first information indicative of the first force as measured by the first force sensor, (ii) receive second information indicative of the second force as measured by the second force sensor, and (iii) determine information regarding a current brushing angle of the brushhead based on the first information and the second information.

Toothbrush with automatic detection of brushing angle

The invention describes a laser sensor module () which is adapted to detect or determine at least two different physical parameters by means of self-mixing interference by focusing a laser beam to different positions. Such a laser sensor module () may be used as an integrated sensor module, for example, in mobile devices (). The laser sensor module () may be used as an input device and in addition as a sensor for detecting physical parameters in an environment of the mobile communication device (). One physical parameter in the environment of the mobile communication device () may, for example, be the concentration of particles in the air (air pollution, smog . . . ). The invention further describes a related method and computer program product.

Laser sensor for multi parameter detection

A system for analysis of the upper airway has at least two sensors are provided along a flow path leading to the mouth and/or nose of a user. A relation is derived between the two sensor signals, and this is interpreted to detect at least the presence of upper airway obstructions, and preferably also the location and/or extent of such obstructions.

System and method for analysis of the upper airway and a respiratory pressure support system

An optical particle sensor has at least first and second threshold settings applied to an optical sensor or a sensor signal to obtain first and second optical sensor readings. The first and second optical sensor readings are processed to determine a parameter which is dependent on a type of pollution event. The parameter is used to determine from at least one of the first and second optical sensor readings a mass of all particles below a first particle size. In this way the mass of all particles below a desired size can be evaluated, even though the optical sensor may not be responsive to the smallest particles.

Optical particle sensor and sensing method

An oral cleaning system provides motivating feedback to a user before brushing and includes: a power toothbrush (); one or more sensors () on or within the toothbrush; a processor () within the toothbrush configured to process sensor information obtained from the one or more sensors during a first brushing session of a user; and a feedback system () on or within the toothbrush responsive to the processor and configured to communicate brushing information to the user at a time subsequent to the first brushing session but before a second brushing session of the user.

Systems and methods for providing motivation feedback to a user before brushing

An apparatus (') is configured such that passage of a fluid () through an open port of a distal tip (&#x2032;) enables detection of a substance () that may be present on a surface (), e.g., a surface of a tooth, based on measurement of a signal correlating to a substance at least partially obstructing the passage of fluid () through the open port. The apparatus (&#x2032;) includes a proximal pump portion () and at least one distal probe portion () configured to be immersed in another fluid (), e.g., water in toothpaste foam. A corresponding system () includes one or two such apparatuses (). A method of detecting the presence of a substance on a surface includes probing an interaction zone () for at least partial obstruction of flow of the second fluid medium () through a distal probe tip.

Plaque detection using a stream probe

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Veldhoven, Netherlands

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