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    Method and system for automatic brightness/gain control while measuring localized oral inflammation
    4.
    发明授权
    Method and system for automatic brightness/gain control while measuring localized oral inflammation 有权

    公开(公告)号：US11497404B2

    公开(公告)日：2022-11-15

    申请号：US16770705

    申请日：2018-11-22

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Steven Charles Deane ,  Alan James Davie ,  Vincent Jeanne

    IPC: A61B5/00 ,  G05B11/01 ,  A46B15/00

    Abstract: A method (500) for localizing gingival inflammation using an oral care device (10), the method comprising: (i) emitting (520) light at a first intensity by a light emitter (42); (ii) obtaining (530) first reflectance measurements reflectance data; (iii) determining (540), by a controller (30) from the first reflectance data, whether the location comprises gingiva; (iv) automatically adjusting (550), based at least in part on the first reflectance data, the intensity of a light emitter to a second intensity different from the first intensity, and/or automatically adjusting (550) a gain of a light detector; (v) obtaining (560) a second plurality of reflectance measurements by the light detector of the oral care device for at least some of the locations; and (vi) determining (570), using the second plurality of reflectance measurements, whether gingiva at the location is inflamed.

    Power generation device and a power generation method
    5.
    发明授权
    Power generation device and a power generation method 有权

    公开(公告)号：US10924036B2

    公开(公告)日：2021-02-16

    申请号：US15756994

    申请日：2016-09-05

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Lutz Christian Gerhardt ,  Alan James Davie ,  Mark Thomas Johnson ,  Hans Kroes ,  Neil Francis Joye

    IPC: H02N1/04

    Abstract: The invention provides a power generation device comprising at least two generating arrangements, each adapted to generate a voltage output through the relative motion of two differently charged generating elements, the generating elements having some separation distance (which may be zero or non-zero). The arrangements are co-operatively configured in such a way that the separation distances between their respective elements are reciprocally related: an increase in one leads to a related decrease in the other. By combining these two signal outputs, a single voltage, current or power output may be provided in a self-regulating manner by the device whose amplitude is substantially independent of any changes or variations in the separation distance between elements of either of the two arrangements.

    Method and system for improved measurement of localized oral inflammation using modulated light
    6.
    发明授权
    Method and system for improved measurement of localized oral inflammation using modulated light 有权

    公开(公告)号：US11571131B2

    公开(公告)日：2023-02-07

    申请号：US16770878

    申请日：2018-12-05

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Steven Charles Deane ,  Alan James Davie

    IPC: A61B5/00 ,  A61B5/1455

    Abstract: A method for localizing gingival inflammation using an oral care device, comprising: (i) simultaneously emitting (520) light by a plurality of light sources (48) of the oral care device, wherein at least some of the plurality of light sources emit light of different wavelengths to result in a plurality of emitted light wavelengths, wherein each of the different wavelengths is modulated with a distinct code; (ii) obtaining (530), by a light detector (40) of the oral care device, reflectance measurements from a location within the user's mouth to generate reflectance data for the location; (iii) demodulating (540), by a controller (30) of the oral care device, the obtained reflectance data; and (iv) determining (560), by the controller using the demodulated reflectance data, whether gingiva at the location is inflamed.

    Method and system for improved motion robustness during measurement of localized oral inflammation
    7.
    发明授权
    Method and system for improved motion robustness during measurement of localized oral inflammation 有权

    公开(公告)号：US11547305B2

    公开(公告)日：2023-01-10

    申请号：US16768947

    申请日：2018-12-05

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Steven Charles Deane ,  Alan James Davie

    IPC: A61B5/00 ,  A61B5/145

    Abstract: A method for localizing gingival inflammation using an oral care device, comprising: emitting (520) light by one or more light emitters (42) of the oral care device; obtaining (530), at a first rate by one or more light detectors (40), reflectance measurements for a plurality of locations to generate first reflectance data; determining (540), by a controller (30) of the oral care device using the first reflectance data, whether the location comprises gingiva; obtaining (550), at a second rate by the one or more light detectors, reflectance measurements for each location determined to comprise gingiva to generate gingiva reflectance data, wherein the second rate is faster than the first rate; and determining (560), by the controller using the gingiva reflectance data, whether gingiva at that location is inflamed.

    Method and system for improved measurement of localized oral inflammation using centroid sampling
    10.
    发明授权
    Method and system for improved measurement of localized oral inflammation using centroid sampling 有权

    公开(公告)号：US11638524B2

    公开(公告)日：2023-05-02

    申请号：US16770890

    申请日：2018-12-06

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Steven Charles Deane ,  Alan James Davie

    IPC: A61B5/00 ,  A61B5/1455

    Abstract: For localizing gingival inflammation within a user's mouth the following steps are carried out using an oral care device (10): (i) sequentially emitting (520) light by a plurality of light sources (48) in a first sequential pattern, wherein at least some of the plurality of light sources are configured to emit light of different wavelengths; (ii) sequentially emitting (530) light in a second sequential pattern which is the reverse of the first sequential pattern; (iii) obtaining (540), by a light detector (40), reflectance measurements to generate first reflectance data from light emitted in the first sequential pattern, and to generate second reflectance data from light emitted in the second sequential pattern; (iv) averaging (550), by a controller (30), first reflectance data and second reflectance data for each wavelength to generate averaged reflectance data; and (v) determining (570), using the averaged reflectance data, whether gingiva at the location is inflamed.

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