Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Signify Holding B.v.

Alan James Davie

Mark Thomas Johnson

Steven Charles Deane

Neil Francis Joye

Rene Martinus Maria Derkx

Lutz Christian Gerhardt

Paul Richard Simons

Andrew Ulrich Rutgers

Jakob Van De Laar

Andrew Alexander Takmakoff

Ronaldus Maria Aarts

Vincent Jeanne

Neil C Bird

Christopher Brian Marshall

Olaf Thomas Johan Antonie Vermeulen

Kumar Arulandu

Paul John Rankin

Steven Ernest Franklin

Hans Kroes

Sandrine Magali Laure Devot

Neil Christopher Bird

Peter Van Delft

Stephen Michael Pitchers

Aki Sakari Härmä

Ian A Marsden

Paul Rlchard Simons

A system () for detecting tissue inflammation, gingivitis specifically, including a light emitter () configured to emit light at a tissue region within a user's mouth; at least four wavelength-sensitive photodetectors (, and) configured to detect optical signals diffusely reflected through the tissue region, each of the at least four wavelength-sensitive photodetectors comprising a filter (BPF, BPF, BPF, and BPF) and a photodiode (D, D, D, and D), where the photodiodes are stacked on top of each other to generate current differential signals for amplifiers corresponding with the photodiodes, wherein the generation of the current differential signals removes an unwanted component from the optical signals prior to amplification; and an inflammation detection unit () configured to receive outputs from the corresponding amplifiers and detect inflammation at the tissue region.

Large dynamic range detector for gingivitis detection

A device and method for determining and/or monitoring the respiratory effort of a subject are presented. The device comprises a receiving unit for receiving a posture signal of the subject, a breathing signal of the subject, and an electromyography signal of the subject; and a processing unit for determining an electromyography signal based on the posture signal and the breathing signal and for deriving the respiratory effort based on the determined electromyography signal.

Device and method for determining and/or monitoring the respiratory effort of a subject

For localizing gingival inflammation within a user's mouth the following steps are carried out using an oral care device (): (i) sequentially emitting () light by a plurality of light sources () 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 () light in a second sequential pattern which is the reverse of the first sequential pattern; (iii) obtaining (), by a light detector (), 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 (), by a controller (), first reflectance data and second reflectance data for each wavelength to generate averaged reflectance data; and (v) determining (), using the averaged reflectance data, whether gingiva at the location is inflamed.

Method and system for improved measurement of localized oral inflammation using centroid sampling

A method for localizing gingival inflammation using an oral care device, comprising: (i) simultaneously emitting () light by a plurality of light sources () 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 (), by a light detector () of the oral care device, reflectance measurements from a location within the user's mouth to generate reflectance data for the location; (iii) demodulating (), by a controller () of the oral care device, the obtained reflectance data; and (iv) determining (), by the controller using the demodulated reflectance data, whether gingiva at the location is inflamed.

Method and system for improved measurement of localized oral inflammation using modulated light

A method for localizing gingival inflammation using an oral care device, comprising: emitting () light by one or more light emitters () of the oral care device; obtaining (), at a first rate by one or more light detectors (), reflectance measurements for a plurality of locations to generate first reflectance data; determining (), by a controller () of the oral care device using the first reflectance data, whether the location comprises gingiva; obtaining (), 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 (), by the controller using the gingiva reflectance data, whether gingiva at that location is inflamed.

Method and system for improved motion robustness during measurement of localized oral inflammation

A method () for localizing gingival inflammation using an oral care device (), the method comprising: (i) emitting () light at a first intensity by a light emitter (); (ii) obtaining () first reflectance measurements reflectance data; (iii) determining (), by a controller () from the first reflectance data, whether the location comprises gingiva; (iv) automatically adjusting (), 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 () a gain of a light detector; (v) obtaining () 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 (), using the second plurality of reflectance measurements, whether gingiva at the location is inflamed.

Method and system for automatic brightness/gain control while measuring localized oral inflammation

The present invention relates to determining a neural respiratory drive (NRD) in patients with chronic obstructive pulmonary disease (COPD) based on surface electromyography measurements taken from the intercostal muscles on the chest of a subject (). An electromyography system is presented that comprises a first electrode (') and a second electrode (&#x2032;) for contacting a skin of a subject (), and a recorder (&#x2032;) for recording an electromyogram between the first electrode (&#x2032;) and the second electrode (&#x2032;); wherein the first electrode (&#x2032;) comprises a first electrode area (A) and a second electrode area (B) for contacting the skin of the subject (), wherein the first electrode area (A) and the second electrode area (B) are insulated from each other; and the recorder (&#x2032;) is configured to form a noise measurement between the first electrode area (A) and the second electrode area (B) of the first electrode (&#x2032;) for determining a contact quality of an electrode-skin contact of the first electrode (&#x2032;). According to further aspects, a corresponding electromyogram recorder (&#x2032;) for an electromyography system, a method for electromyogram measurements and a corresponding computer program are presented.

Surface electromyography system, recorder and method

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.

Power generation device and a power generation method

The invention provides an energy generation and/or conversion system and method wherein an electrical power generator is controlled to periodically alternate between a contact-mode, during which elements of the generator are brought into contact to induce a state of charging, and a non-contact mode, during which plates of the generator are separated from one another and electrical energy is generated through electrostatic induction. Timing and duration of contact and non-contact modes are controlled by a controller, or by user commands, in dependence on a charge state of the elements of the generator: In this way elements are controlled to come into contact only when surface charge has fallen below a certain level, and re-charging is necessary; contact time between the elements may hence be minimised&#x2014;thereby minimising incurred noise and surface wear&#x2014;whilst still maintaining a given desired threshold power output.

Triboelectric energy generator

A system comprises a power generator for generating electrical power and a switched capacitor converter for down-converting the output voltage of the power generator. The switched capacitor converter comprises a bank of capacitors and a switch arrangement. A controller is used for controlling the switches, based on a feedback signal from the power generator. This provides automatic control of the switched capacitor converter, thereby simplifying the overall control circuitry and improving efficiency.

Energy generation system and method

The present disclosure is directed to methods and apparatus for locating luminaires within a lighting system where multiple luminaires are located on a grid of DC power rails. The AC signal generator connects to each DC power rail and transmits an AC signal along each DC power rail in turn to luminaires that each compute their distance from the generator based upon the AC signal. The AC signal generator may similarly transmit and receive data communications with luminaires across DC power rails.

Method and system for localisation on a DC lighting and power grid

Method and system for localization on a DC lighting and power grid

A triboelectric power generator system uses a power converter to provide a controllable impedance between a triboelectric power generator and a load, in dependence on the triboelectric generator output. This enables improved power transfer even though the output generated by a triboelectric power generator can be irregular and fluctuates over time.

Triboelectric power generator system and method

This invention generally relates to control of DC track lighting systems. The proposed solution implements a control system for a DC track lighting system based on the use of near-field RF technologies such as NFC. This solution is achieved by extending the limited range offered by near-field RF technologies by taking advantage of the unexpected behavior of a DC track while having thereon high frequency signals such as near-field RF signals. The proposed solution may require less tedious control of DC track lighting system since lamp holder(s) may be controlled based on a single 'touch' of near-field RF enable device.

DC track lighting systems control

A system and methods for automatically commissioning electrical fixtures using sound are disclosed. Electrical fixtures (-) detect sounds produced by a sound generator moved along a path () through installed fixtures according to a building plan (). Each electrical fixture may be associated with a mapped fixture location in the building plan by correlating the detected sound with the location of the sound generator along the path.

Growing community of inventors

Cambridge, United Kingdom

Alan James Davie