Abstract: The present invention relates to security systems for communication networks. More precisely, the invention relates to a method for generating a shared key between a first node (D1) and a second node (D2) for secure communication in a network (1), the first node storing a first node keying material share based on a root keying material and the method comprising the following steps: a) the first node receiving an identifier of the second node, b) the first node evaluating the first node keying material share at a second node's identifier, to generate the shared key, wherein the first node keying material share is a polynomial-based keying material over a finite field Fq and step b) comprises: b1) the first node applying a Horner's rule to factorize the first node keying material under the form of a combination of monomials, b2) the first node computing the result of each monomial operation by evaluating at a predetermined point a polynomial of degree r?1 with coefficients in a sub-field of Fq.

Abstract: The invention relates to electronic equipment (2) capable of presenting a demonstration routine. The electronic equipment comprises a processing unit for receiving and processing a synchronization signal and a memory for storing a demonstration routine. The processing unit is adapted for presentation of the demonstration routine in accordance with the synchronization signal. A synchronous presentation of the demonstration routine may thereby be achieved on an ensemble of electronic equipment. In an embodiment the electronic equipment is an ensemble of TV-sets synchronously presenting an electronic sticker (3) overlaid on the display.

Abstract: The present invention is a system, apparatus, and method for a “Priority” field that is included in the information transmitted by an Access Point (AP) (801i) about its neighbor APs (801i) and the network service providers (SPs) that it supports. A “Priority” field (103i-6 154i.2 203.i.2 233 266) is included in at least one of a Neighbor Report element (100), an AP Channel Report element (150), and a service provider's information element (200 230 260). The service provider priority field (203.i.2 233 266) is contained in any protocol frame transmitted by the AP (801i) that contains information about one or more service providers that it supports. The “Priority” field (103i.6 154-i.2 203.i.2 233 266) contains a numeric value or a symbolic indicating a recommendation from the AP (801i) concerning which AP/APs and service provider(s) SP/SPs for a STA (802j) to scan first or access in an eventual roaming/accessing process.

Abstract: An ultrasonic diagnostic imaging system acquires a sequence of image data as a bolus of contrast agent washes into and out of a region of interest (ROI) which may contain a lesion. The image data of contrast intensity is used to compute a time-intensity curve at each point in the ROI. Levels of a time-intensity curve are set to define a rise rime period when contrast perfuses the ROI, an enhancement time period when a maximal amount of contrast is sustained in the ROI, and a fall time period when contrast washes out of the ROI. One or more of the time period parameters for the points in the ROI are used to form a parametric contrast image, which is used to identify a lesion in the ROI and its border.

Abstract: The invention provides a lighting arrangement comprising a carpet structure, and a control unit, The carpet structure comprises a carpet back lighting system comprising a carpet back lighting unit having a lighting unit front face and a unit back face. The lighting unit front face comprises a light source arranged to generate light. The carpet back lighting system comprises a plurality of said light sources. The carpet structure comprises a light transmissive carpet unit comprising a carpet unit front face and a carpet unit back side. The light transmissive carpet unit is selected from the group consisting a carpet and a carpet tile. The lighting unit front face of the carpet back lighting unit and the carpet unit back side of the light transmissive carpet unit are adjacent. The light transmissive carpet unit is arranged to transmit at least part of the light travelling in a direction from the carpet unit back side to the carpet unit front face.

Abstract: DVB-T2 is the next generation standard for the terrestrial digital broadcast. There is the request of identifying the transmitters in the Single Frequency Networks mainly for testing purposes. This might be achieved by embedding a watermark sequence in the transmitters to identify them uniquely. However, the transmitters can also be deployed in SFN so they have to transmit exactly the same data. Therefore, the watermark has to be added at the radio signal. It connot be added at content level as it happens in other standard as, for instance, in cellular systems. The invention proposes two possible new methods to watermark the transmitter ID in the DVB-T2 signal. In both cases we assign orthogonal pilot sequences to different transmitters. In one case the sequences are added at very low power to ensure no loss in the data rate. This is a very attractive alternative, but it might require a much more expensive receiver.

Abstract: A lighting assembly has a light source emitting light, an angular filter having a main surface, and a light guide having a main surface. The main surface of the filter is parallel to the main surface of the light guide. The filter may be configured to reflect light rays originating from the light source that are incident at small angles with respect to a direction normal to the main surface of the filter, and to transmit light rays originating from the light source that are incident at larger angles with respect to the direction normal to the main surface of the filter.

Abstract: The present invention relates to, in a wireless network in which wireless stations transmit frames, a method of managing the access of the medium to a wireless station once a frame or a sequence of frames has been transmitted by the wireless station, the method comprising: (a) generating a time value resulting from a function of the duration of the frame or the sequence of frames to be transmitted, (b) transmitting the frame or the sequence of frames; and (c) after step (b), the wireless station refraining from access to the medium by counting down a refraining time, the value of the refraining time being determined by taking account of the said time value.

Abstract: A method of generating an occlusion image property map for an occlusion viewing position for a three dimensional scene is provided. The occlusion image property map comprises at least some image property values that are occluded from the occlusion viewing position. The method utilises an algorithm which can generate an image property map for an image representing the scene as a function of a viewing position. The method generates (701, 703) image property map for different viewing positions by performing the algorithm for these positions. The occlusion image property map is generated (705) from the image property maps of different viewing positions. Specifically, the image property maps may in some examples be shifted to the occlusion viewing position and data of the occlusion image property map is then selected as a pixel from the shifted image property maps which does not correspond to the most forward pixel (unless all pixels have equal depth).

Abstract: The invention relates to an illumination device (1), comprising: at least one LED (3) having an emission maximum in a first wavelength range; at least one LED (2) having an emission maximum in a second wavelength range; and a wavelength converting material (5) arranged to receive light of at least said first light wavelength range and having an emission maximum in a third wavelength range which is between said first wavelength range and said second wavelength range. The illumination device according to the invention may provide white light of acceptable overall color rendering while producing particularly high saturation of selected colors.

Abstract: The invention relates to microfluidic systems, and more specifically to a microfluidic system comprising a capillary channel (14) and an inlet (12) for receiving a fluid, as well as a method of filling a capillary channel (14). Provided is a microfluidic system, having an inlet (12) for receiving a fluid, a capillary channel (14), an outlet (20) for letting excess fluid out, and a reservoir (10) for interfacing the inlet (12) to the capillary channel (14). The reservoir (10) forms a first passage from the inlet (12) to the outlet (20), and a second passage from the inlet (12) to an entrance (22) of the capillary channel (14). A hydraulic resistance of the first passage is sufficiently low in order to effect a pressure reduction at the entrance (22) of the capillary channel (14) when a fluid is received under pressure at the inlet (12).

Abstract: A device includes a light source, a sensor, and a controller. The light source includes at least one light emitting device connected to a mount. The light emitting device comprises a plurality of segments with neighboring segments spaced less than 200 microns apart. In some embodiments, the plurality of segments are grown on a single growth substrate. Each segment includes a III-nitride light emitting layer disposed between an n-type region and a p-type region. The mount is configured such that at least two segments may be independently activated. The controller is coupled between the sensor and the mount. The controller is operable to receive an input from the sensor and based on the input, selectively illuminate at least one segment in the light source.

Abstract: A method of acquiring at least one clinical MRI image of a subject comprising the following steps: acquiring a first survey image with a first field of view, the first survey image having a first spatial resolution,—locating a first region of interest and at least one anatomical landmarks in the first survey image, determining the position and the orientation of the first region of interest using the anatomical landmarks, the position and the orientation of the first region being used for—planning a second survey image,—acquiring the second survey image with a second field of view, the second survey image having a second spatial resolution, the second spatial resolution being higher than the first spatial resolution, generating a geometry planning for the anatomical region of interest using the second survey image,—acquiring a diagnostic image of the anatomical region of interest using the geometry planning.

Abstract: A system and method for receiving an input including a condition corresponding to a patient, retrieving a set of recommendations corresponding to the condition, displaying at least a portion of the set of recommendations to a user, receiving an input that one of the recommendations has been completed and modifying the display of the recommendations based on the input that the one of the recommendations has been completed.

Abstract: The cleaning apparatus includes a source of gas under pressure (12) and a source of fluid (14), along with associated gas (26) and fluid (34) chambers, adapted for successive single uses. A user-operated metered valve (22) connects the gas reservoir to the gas chamber, while a liquid pump (30) and a one-way valve (32) connects the liquid reservoir to the liquid chamber. When gas is released from the gas reservoir, it expands rapidly from the valve into the gas chamber, resulting in pressure therein sufficient to open a one-way valve (34) connecting the gas chamber to the liquid chamber. The gas in the liquid chamber forces liquid therein through a liquid line (15) to a connecting point with a gas stream line (13) from the gas chamber. The interaction of the fluid with the gas stream results in a spray of liquid droplets (17) which are directed out of the gas stream line exit orifice (16) to the teeth for cleaning.

Abstract: An imaging system includes a radiation source (110) that emits radiation that traverses an examination region and a detector (116) that detects radiation traversing the examination region and a subject disposed therein, and produces a signal indicative of the energy of the detected radiation. A data selector (122) energy discriminates the signal based on an energy spectra setting corresponding to first and second spectral characteristics of a contrast agent administered to the subject, wherein the contrast agent has a first attenuation spectral characteristic when attached to the target and a second different spectral characteristic when not attached to the target. A reconstructor (134) reconstructs the signal based on the first and second spectral characteristics and generates volumetric image data indicative of the target.

Abstract: The invention relates to a method and a device (100) for determining the amount of a target component (2) in a sample, wherein magnetic particles (2) can bind to a contact surface (4) with kinetics that depend on the sample-amount of the target component. The method comprises at least two washing steps during which magnetic particles (2) are magnetically moved away from the contact surface (4) and corresponding measurements of the remaining amount of magnetic particles (2) at the contact surface (4). The amount of target component in the sample is estimated from at least one of such measurement results. The measurement allows to determine also high concentrations of target component for which the sensor surface (4) is saturated in a steady-state.

Abstract: It is provided a lamp, particularly halogen lamp, for a headlight of a motor vehicle, comprising a light source (12) for emitting mainly white light, a mainly transparent envelope (14) encapsulating the light source (12) and a filter element (22) provided at the envelope (14), wherein the filter element (22) is adapted for deflecting visible light of a predefined wavelength interval such, that mainly blue light can be provided above a bright/dark-cutoff (28). Since the deflected bluish light is above the bright/dark-cutoff (28) an oncoming driver recognizes earlier the light. At the same time the oncoming driver is not blinded by the blue light above the bright/dark-cutoff (28), since not the whole emitted light (40) but only a smaller wavelength interval is directed above the bright/dark-cutoff (28).

Abstract: A dental appliance having a passive arrangement for drawing liquid from a reservoir (22, 33, 54) in the appliance by action of a stream of gas, which can be provided by a source of compressed gas (31, 34) or other system. The liquid mixes with the gas, resulting in liquid droplets which are directed through an orifice (18, 42, 68) at the end of a nozzle portion (12, 39, 66) of the appliance.

Abstract: Disclosed herein is a method for producing an LED array grid including the steps of (i) arranging N electrically conducting parallel wires, where N is an integer >1, thus creating an array of wires having a width D perpendicular to a direction of the wires, (ii) arranging LED components to the array of wires such that each LED component is electrically coupled to at least two adjacent wires, (iii) stretching the array of wires such that the width D increases, and arranging the stretched LED array grid onto a plate or between two plates