Patents by Inventor Gerard De Haan

Gerard De Haan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200345252
    Abstract: The invention provides a physiological parameter sensing system (50) and method in which physiological information indicative of at least one physiological parameter is derived. The approach of the invention is based on constructing multiple pulse signals from different weighted combinations of at least two detection signals, derived from detected electromagnetic radiation directed onto or through a subjects skin region. The weightings are based on different of a set of various blood volume pulse vectors. A quality indication value is derived for each generated pulse signal, where this is based on a derived relationship between an obtained heart rate signal for the patient and the pulse signal. The blood volume pulse vector resulting in the pulse signal having the highest quality indicator value and/or from the derived pulse signal itself is used to derive the physiological parameter information.
    Type: Application
    Filed: November 13, 2018
    Publication date: November 5, 2020
    Inventors: Laurentia Johanna HUIJBREGTS, Gerard DE HAAN, Mark Josephus Henricus VAN GASTEL
  • Patent number: 10818010
    Abstract: The present invention relates to a device, system and method for skin detection. To enable a reliable, accurate and fast detection the proposed device comprises an input interface (30) for obtaining image data of a scene, said image data comprising a time sequence of image frames, an extraction unit (31) for extracting a photoplethysmography (PPG) signal from a region of interest of said image data, a transformation unit (32) for transforming said PPG signal into a spectral signal, a sorting unit (33) for sorting said spectral signal to obtain a sorted spectral signal representing a descriptor, and a classifier (34) for classifying said region of interest as skin region of a living being or as non-skin region based on the descriptor.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: October 27, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Wenjin Wang, Gerard De Haan
  • Publication number: 20200253560
    Abstract: The present invention relates to a device, system and method for determining at least one vital sign of a subject.
    Type: Application
    Filed: October 29, 2018
    Publication date: August 13, 2020
    Inventor: GERARD DE HAAN
  • Publication number: 20200178809
    Abstract: The application relates to camera-based vital signs monitoring using remote PPG.
    Type: Application
    Filed: August 1, 2018
    Publication date: June 11, 2020
    Inventors: Wenjing WANG, Albertus Cornelis DEN BRINKER, Gerard DE HAAN
  • Patent number: 10667704
    Abstract: There is provided a system and method of assessing the quality of the extraction of the signal and the reliability of the physiological measurement by providing a system for producing a quality metric for physiological information extraction from a sequence of image frames, the system comprising a signal extraction unit configured to extract a signal representative of a physiological characteristic from a plurality of the image frames, a signal analyzer configured to calculate a plurality of physiological information results from the signal using a plurality of calculation functions, the plurality of calculation functions being comprised within a list of calculation functions, each physiological information result being calculated using a different calculation function, and a quality metric calculator for calculating a quality metric value based on a signal analysis metric derived from a comparison between the physiological information results of the plurality of physiological information results.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: June 2, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Gerard De Haan, Albertus Cornelis Den Brinker, Vincent Jeanne, Gerrit Maria Kersten, Murtaza Bulut, Michel Jozef Agnes Asselman
  • Patent number: 10646167
    Abstract: A device, system and a method extract physiological information indicative of at least one vital sign of a subject. To provide a high motion robustness, an input interface is configured to obtain at least two detection signals derived from detected electromagnetic radiation transmitted through or reflected from a skin region of a subject. Each detection signal includes wavelength-dependent reflection or transmission information in a different wavelength channel. At least two pulse signals are computed from said at least two detection signals using different signature vectors for the computation of each pulse signal. Quality indicator values are computed for the pulse signals indicating a characteristic of the respective pulse signal. Physiological information indicative of at least one vital sign is derived from the signature vector resulting in the pulse signal with the best quality indicator value and/or from the pulse signal.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: May 12, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Gerard De Haan
  • Publication number: 20200121262
    Abstract: The present invention relates to a device and method for processing physiological signals of a subject and in particular to a system for monitoring a (vascular) health parameter of a subject including such a device. The proposed device (10) comprises an input interface (11) for obtaining image data of a scene, said image data comprising a time sequence of image frames; an extraction unit (12) for extracting time-varying signals (92) indicative of cardiac-synchronous motion from said image data, wherein said time-varying signals (92) are motion signals indicative of a vascular micro-motion indicative of a vascular displacement waveform; a polarity determination (13) unit for determining a polarity of the time-varying signals, wherein the polarity corresponds to a phase of the time-varying signals; a combination unit (14) for combining time-varying depending on their polarity to obtain a combination signal; and an analysis unit (15) for determining a (vascular) health parameter based on the combination signal.
    Type: Application
    Filed: February 27, 2018
    Publication date: April 23, 2020
    Inventor: Gerard DE HAAN
  • Patent number: 10582881
    Abstract: A sensor system is for determining a breathing type of a subject. It has first and second electromagnetic radiation (e.g. optical) sensors, for example PPG sensors. The sensors are for application to the skin of the subject at different sensor locations. The signals from the first and second sensors are analyzed to determine if there is predominantly a first breathing type (e.g. chest breathing) or predominantly a second breathing type (e.g. belly breathing), or a mixture of the first and second breathing types.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: March 10, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Jozef Hubertus Gelissen, Cornelis Harm Taal, Gerard De Haan, Mark Josephus Henricus Van Gastel, Anjo Peeters
  • Patent number: 10575764
    Abstract: The present disclosure relates to a device and a method for extracting physiological information indicative of at least one health symptom from remotely detected electromagnetic radiation. The device comprises an interface for receiving a data stream comprising remotely detected image data representing an observed region comprising at least one subject of interest, wherein the image data comprises wavelength-dependent image information, wherein the wavelength-dependent image information is composed of at least two color channels representative of respective wavelength portions; an image processor for detecting channel signal strength information for at least two of the at least two color channels; and a data comparison unit for comparing detected channel signal strengths with respective reference values.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: March 3, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Gerard De Haan
  • Publication number: 20200037902
    Abstract: The present invention relates to a device, system and method for obtaining a vital signal of a subject. To achieved increased robustness against motion, the device comprises a decomposition unit (12) for performing a spectral decomposition of at least two photoplethysmography detection signals being related to a physiological property of the subject and allowing extraction of a vital sign of the subject to obtain two or more spectral components of the detection signals. A weight is determined per spectral component based on an estimate of the relevance of the respective spectral component to the vital sign, derived from a characteristic of said spectral component.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 6, 2020
    Inventors: Gerard DE HAAN, Albertus Cornelis DEN BRINKER, Wenjing WANG
  • Patent number: 10542925
    Abstract: The present invention relates to a device and method for monitoring vital signs of a subject. In particular, the device for monitoring vital signs comprises, an imaging unit for obtaining image data of said subject, an interface for receiving motion data of said subject and/or said imaging unit, a processing unit for extracting vital signs of said subject from said image data, and a control unit for adapting parameters of said imaging unit and/or said processing unit based on the received motion data. A further aspect of the invention relates to a fitness device comprising a device for monitoring vital signs and a motion detection unit for providing said device for monitoring vital signs with motion data.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 28, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Ihor Olehovych Kirenko, Adriaan Johan Van Leest, Gerard De Haan
  • Patent number: 10531820
    Abstract: In a device, system and method for determining the concentration of a substance, such as the oxygen saturation in the blood of a subject, the influence of specular reflection is reduced or removed. An input unit is configured to receive detection signals reflected back from a skin area of the subject in response to irradiation of the skin area by a radiation signal. A signal extraction unit is configured to extract at least two photo-plethysmography, PPG, signals at two different wavelengths from the detection signals. A processing unit is configured to compute the concentration of a selected substance in the blood of the subject based on the PPG signals taking into account a skin tone of the subject.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 14, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Gerard De Haan, Mukul Rocque
  • Publication number: 20190357851
    Abstract: A data processing device (100, 200) is disclosed for extracting a desired vital signal containing a physiological information component from sensor data that includes time-dependent first sensor data (PPG1) comprising the physiological information component and at least one motion artifact component, and that includes time-dependent second sensor data that is indicative of a position, a velocity or an acceleration of the sensed region as a function of time. A decomposition unit (104, 204) decomposes the second sensor data into at least two components of decomposed sensor data and, based on the decomposed second sensor data, provides at least two different sets of motion reference data in at least two different motion reference data channels. An artifact removal unit (106, 206) determines the vital signal formed from a linear combination of the first sensor data and the motion reference data of at least one two of the motion reference data channels.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Cornelus Hendricus Bertus Arnoldus van Dinther, Gerard de Haan, David Antoine Christian Marie Roovers
  • Patent number: 10478078
    Abstract: The present invention relates to a Device for determining vital signs of a subject comprising an interface (22) for receiving a periodic photoplethysmographic, PPG, signal obtained from a subject (14) by a PPG measurement, a signal partitioning unit (24) for partitioning the PPG signal in time into a plurality of PPG sub-signals covering a half period or an integer multiple of a half period, a normalizing unit (26) for normalizing the PPG signal in advance of the partitioning and/or the PPG sub-signals in time and/or amplitude, a signal combination unit (28) for combining a number of normalized PPG sub-signals to obtain a combined PPG sub-signal, and a vital sign processor (30) for deriving a desired vital sign from the PPG signal, one or more combined PPG sub-signals or an enhanced PPG signal obtained by consecutively arranging a number of combined PPG sub-signals.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: November 19, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Gerard De Haan
  • Patent number: 10398383
    Abstract: A data processing device is disclosed for extracting a desired vital signal containing a physiological information component from sensor data that includes time-dependent first sensor data comprising the physiological information component and at least one motion artifact component, and that includes time-dependent second sensor data that is indicative of a position, a velocity or an acceleration of the sensed region as a function of time. A decomposition unit decomposes the second sensor data into at least two components of decomposed sensor data and, based on the decomposed second sensor data, provides at least two different sets of motion reference data in at least two different motion reference data channels. An artifact removal unit determines the vital signal formed from a linear combination of the first sensor data and the motion reference data of at least one two of the motion reference data channels.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: September 3, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Cornelus Hendricus Bertus Arnoldus van Dinther, Gerard de Haan, David Antoine Christian Marie Roovers
  • Patent number: 10349900
    Abstract: A device for extracting physiological information indicative of at least one vital sign of a subject from detected electromagnetic radiation transmitted through or reflected from a subject comprises an input interface for receiving a data stream of detection data derived from detected electromagnetic radiation transmitted through or reflected from a skin region of a subject. The detection data comprises wavelength-dependent reflection or transmission information in at least two signal channels representative of respective wavelength portions. A signal mixer dynamically mixes the at least two signal channels into at least one mixed signal. A processor derives physiological information indicative of at least one vital sign from the at least one mixed signal, and a controller controls the signal mixer to limit the relative contributions of the at least two signal channels mixed into at least one mixed signal and/or the rate-of-change at which said relative contributions are allowed to dynamically change.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: July 16, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Gerard De Haan
  • Publication number: 20190209045
    Abstract: A sensor system is for determining a breathing type of a subject. It has first and second electromagnetic radiation (e.g. optical) sensors, for example PPG sensors. The sensors are for application to the skin of the subject at different sensor locations. The signals from the first and second sensors are analyzed to determine if there is predominantly a first breathing type (e.g. chest breathing) or predominantly a second breathing type (e.g. belly breathing), or a mixture of the first and second breathing types.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 11, 2019
    Inventors: Jozef Hubertus GELISSEN, Cornelis Harm TAAL, Gerard DE HAAN, Mark Josephus Henricus VAN GASTEL, Anjo PEETERS
  • Publication number: 20190200871
    Abstract: The present invention relates to a system for vital signs detection. The system comprises a radiation source (16) for emitting radiation in a limited wavelength range for illuminating a skin area of a subject and a radiation detector (12), a radiation detector (12, 30, 40) for detecting radiation reflected from a skin area of a subject (1) in response to said illumination, and for generating first and second detector signals, the first detector signal representing radiation (2) reflected from the skin area of a subject in a first wavelength subrange of said limited wavelength range of radiation (3) and the second detector signal representing radiation in a second wavelength sub-range of said limited wavelength range of radiation different from said first wavelength sub-range, and a vital signs detector (14) for detecting a vital sign from a combination of said first and second detector signals by computing the difference between said first and second detector signals.
    Type: Application
    Filed: June 23, 2017
    Publication date: July 4, 2019
    Inventor: Gerard DE HAAN
  • Patent number: 10306233
    Abstract: To allow better quality rendering of video on any display, a method is proposed of encoding, in addition to video data (VID), additional data (DD), wherein the additional data includes at least one change time instant (TMA_1) indicating a change in time of a characteristic luminance (CHRLUM) of the video data, which characteristic luminance summarizes a set of luminances of pixels in an image of the video data, the method: generates on the basis of the video data (VID) descriptive data (DED) regarding the characteristic luminance variation of the video, the descriptive data comprising at least one change time instant (TMA_1), and encodes and outputs the descriptive data (DED) as additional data (DD).
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 28, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chris Damkat, Gerard De Haan, Mark Jozef Willem Mertens, Remco Muijs, Martin Hammer, Philip Steven Newton
  • Publication number: 20190158842
    Abstract: To allow better quality rendering of video on any display, a method is proposed of encoding, in addition to video data (VID), additional data (DD) comprising at least one change time instant (TMA_1) indicating a change in time of a characteristic luminance (CHRLUM) of the video data, which characteristic luminance summarizes the set of luminances of pixels in an image of the video data, the method comprising: generating on the basis of the video data (VID) descriptive data (DED) regarding the characteristic luminance variation of the video, the descriptive data comprising at least one change time instant (TMA_1), and encoding and outputting the descriptive data (DED) as additional data (DD).
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Inventors: Chris DAMKAT, Gerard DE HAAN, Mark Jozef Willem MERTENS, Remco MUIJS, Martin HAMMER, Philips Steven NEWTON