Abstract: A method of mapping a four primary input signal (IS) to sets (Pij) of four sub-pixels (RPij, GPij, BPij, WPij) of a display device (DD). The four primary input signal (IS) comprises a sequence of input samples (Sij) each comprising a value for a first input signal (Rlij), a value for a second input signal (Glij), a value for a third input signal (Blij), and a value for a fourth input signal (Wlij). The sets (Pij) of the four sub-pixels comprise a first sub-pixel (RPij) to supply light having a first primary color (R), a second sub-pixel (GPij) to supply light having a second primary color (G), a third sub-pixel (BPij) to supply light having a third primary color, and a fourth sub-pixel (WPij) to supply fourth light having a fourth color (W), the first, second, third and fourth color all being different, and the fourth color being within the color gamut of the first, second, and third color.

Abstract: In summary, the present invention provides a method for estimating maximum available write power of an optical storage drive. Optical drives have a certain guaranteed maximum power corresponding to the largest emission angles and worst case electrical parameters of the laser, but many drives could produce more if needed because they are not worst case. The extra power that is available from the lasers that is not worst case is wasted. By identifying drives with lasers that have favorable parameters, the maximum available write power of a drive becomes larger. The present invention solves this problem by providing an estimation method wherein a beam of laser light is generated having a power level (P), a first parameter of the laser light source and a second parameter of the beam of laser light that is generated are measured and used to estimate the maximum available write power.

Abstract: A frequency-tunable arrangement comprises a resonance circuit (RS) having a capacitive part (C1, C2, Cv1, Cv2) that is tunable throughout a capacitance range. A plurality of amplifiers (AB, AS1, AS2, AS3) is coupled to the resonance circuit so as to form an oscillation loop. At least one of the amplifiers is a switchable amplifier (AS1) that is switchable between an active state and an idle state. The switchable amplifier causes a capacitance variation in parallel to the capacitive part of the resonance circuit when switched between the active and the idle state. The switchable amplifier is arranged so that the capacitance variation substantially corresponds to the capacitance range throughout which the capacitive part can be tuned.

Abstract: For optical data storage applications a near field optical system can be used. In near field optical systems an accurate alignment of a solid immersion lens with respect to a disc surface is crucial. The correction of a tilt between the lens and the disc is performed by use of auxiliary beams. By comparing the gap signal for the auxiliary beams the air gap height and disc tilt can be determined.

Abstract: The present invention relates to a method and a device of enabling inheritance of a digital content item. There is provided a method and a device by which inheritance of a digital content item is enabled by means of acquiring an inheritance license for an encrypted digital content item. The inheritance license specifies operations that are allowed to be performed on the content item after the death of its proprietor. Further, a death certificate of the proprietor of the encrypted content item is accessed, wherein authorization is given to perform at least a subset of the operations specified in the inheritance license on the encrypted content item.

Abstract: An optical waveguide comprises a body (13), the body including an entrance window (9) and an exit window (11) defining an optical path (13) through a cavity. The cavity contains a first fluid (A) and a second fluid (B), with an interface between the first fluid and the second fluid defined by a meniscus. The meniscus lies longitudinally along the optical path. Means for adjusting the meniscus are provided, for example a voltage source and at least two electrodes. Electrowetting can be used for influencing the fluids.

Abstract: There is provided a method of caching data assets in a system (10) comprising at least one server (20) and at least one user device (50). Each device (50) includes a cache arrangement (120, 130, 140) comprising a plurality of caches (120, 130, 140) for storing requested data assets therein. The method includes the steps of: (a) arranging for one or more data assets to be stored in a first memory (30) of said at least one server (20) and data definitions corresponding to said one or more data assets in a second memory (40) of said at least one server (20); (b) arranging for said at least one server (20) to be responsive to one or more data requests from said at least one user device (50) by returning to said at least one user device (50) corresponding one or more requested data assets.

Abstract: A passive matrix electrophoretic display (1) in which a select driver applies a select waveform to each line of the matrix and a data driver applies a sequence of drive signals (D) to the columns of the matrix according to the image to be displayed on the device. The select waveform includes a reset signal (R1,Rn) which precedes a select signal (S) to be applied to the picture elements of a line of the matrix. The reset signals (R1) may be applied substantially simultaneously to at least a subset of lines of matrix, before respective drive signals (D) are applied to the pixels (2) thereof. Alternatively a select waveform (including the reset signal (RN)) may be applied to each line of the matrix sequentially, with the drive signals (D) being applied to the pixels (2) of each selected line of the matrix whilst the next line is being reset. As a result, the image update line of the device (1) is reduced.

Abstract: An illumination system, comprising a radiation source and a monolithic ceramic luminescence converter comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is an europium(II)-activated oxonitridoaluminosilicate of general formula EA2-zSi5-aAlaN8-bOb:Euz wherein 0<a<4, 0<b<4 and 0<z<0.2; EA is at least one earth alkaline metal chosen from the group of calcium, barium and strontium provides a system with a converter that is effective for conversion of high energy radiation, such as radiation in the UV to blue range of the electromagnetic spectrum. It is also effective, as it is a good transmitter of the light energy, that results from the conversion of the high energy radiation input. Otherwise the light would be absorbed in the material and the overall conversion efficiency suffers.

Abstract: Ceiling comprising adjacent luminaries (1), whereby a luminaries (1) is fixed by at least two separate fixation means. The fixation means comprising only one suspension member (2,3) connected to the center of the upper side (6) of the luminaries (1). Furthermore, there is at least one fixation member (22) connecting the luminaries (1) to an adjacent luminaries (1). The lower sides (10) of the luminaries (1) form a substantial flat surface of the ceiling.

Abstract: The present invention relates to highly dense translucent and transparent aluminium oxide components for applications, e.g. in the lighting industry, where a fine crystal size has to be obtained and stabilized for use at temperatures of 800° C. or more. Disclosed are high-strength polycrystalline alumina products which include 0.001-0.5 weight-% ZrO2 stabilizing a fine crystal size <2 ?m or, preferably, <1 ?m if used at temperatures of 800° C. or more. The microstructure exhibits an extremely high relative density enabling a high real in-line transmission >30% measured over an angular aperture of at most 0.5° at a sample thickness of 0.8 mm and with a monochromatic wavelength of light ?, preferably, of 645 nm.

Abstract: A light source has a discharge vessel which is filled with a filling gas, and an electron beam source which is arranged in vacuum or in a region of low pressure. The electron beam source generates electrons which are propelled through an entry foil into the discharge vessel. An electric field may be generated inside the discharge vessel.

Abstract: An electrophoretic display panel for displaying a picture has a pixel having an electrophorectic medium having first and second charged particles, the first charged particles having a first optical property, the second charged particles having a second optical property different from the first optical property, and an optical state depending on positions of the particles. Furthermore, particle movement apparatus is arranged to enable a picture movement of the first and the second particles to their respective position for displaying the picture, and particles movement decoupling apparatus is arranged to provide unequal abilities of the first and the second particles to move for substantially decoupling the picture movement of the first particles from the picture movement of the second particles.

Abstract: The invention relates to a method of analyzing an object data set in which a tubular structure having a plurality of branches and bifurcations occurs, wherein said object data set assigns data values to positions in a multi-dimensional space, which data values relate to an object to be examined, and wherein the positions along the branches and of the bifurcations of said tubular structure are labelled, each branch and bifurcation having a unique label.

Abstract: Content material is protected with a variety of watermarking processes. Different subsets of the protected content material are submitted to different watermarking processes. At the rendering device, a watermark detector is configured to detect one or more different watermarks. Only if the particular watermark(s) that the rendering device is configured to detect is removed from the protected content material will the rendering device permit the rendering of the protected material. If the particular watermark(s) that the rendering device is configured to detect is unpredictable, or if the particular segment that is protected by a particular watermark is undetectable, a wholesale removal of specific watermarks from the watermarked material will neither be efficient nor economically viable.

Abstract: An electronic circuit that includes components that operate asynchronously of one another. An interface element has inputs coupled to a respective one of the components. The interface element supplies a logic output signal that is a logic function of signals at the inputs and dependent on the relative timing of the signals at the inputs. The electronic circuit is switched to a test mode, in which test input signals are applied to the electronic circuit from a test signal source. During test a difference is caused to occur between the time intervals after which the test signal source affects different ones of the signals at the inputs of the interface element. Preferably the test control circuit activates said difference in the test mode and not in the normal operating mode.

Abstract: A driver for HID lamps includes four switches and generates a constant DC-current that is commutated at a low frequency. The driver includes a filter capacitor. The occurrence of peak currents due to the charging or discharging of the filter capacitor is prevented by driving one of the switches at a high frequency immediately after commutation.

Abstract: A disk drive unit for a disk includes a mounting plate, a spindle motor assembly, a slide mechanism provided with a slide, a pickup unit mounted on the slide, a first transmission member operatively connected with the slide, and a second transmission member. The first transmission member is positioned such that it is in engagement with the second transmission member when the pickup unit is in its read and/or write position, and such that the first transmission member is out of engagement with the second transmission member when the pickup unit is in its home position. In order to bring the first and second transmission members into engagement, the transmission members are provided with engagement members. As a result, a limit switch assembly is no longer necessary.

Abstract: In cardiac CT, it is the goal to acquire data for a full scan as fast as possible. For this reason, gantry rotation is increased further and further, such that the G-forces on the tube of the devices on the gantry become a limiting factor. Alternatively, the temporal resolution of scans can be doubled by mounting two complete tube-detector assemblies onto the gantry. However, this solution doubles the costs for the tube-detector assembly. According to the present invention it is proposed to modify one of the tube-detector assemblies such that one detector has a reduce size. Then, information from another detector is used to supplement scanning results from the detector with reduced size.

Abstract: A method and a corresponding apparatus for recording an information on a recordable optical record carrier (2) by irradiation of a light beam through an optical system (3-7) onto said record carrier (2) for forming marks and lands representing said information along an information recording direction (t), obtains a higher recording density, and thus higher data capacity, by using astigmatism for influencing the light beam from the light source (8) to the record carrier (2) during recording of information so as to obtain a light beam having a substantially oval spot profile having a shorter axis in the information recording direction (t), i.e., the tangential direction for an optical disc, compared to the direction (r) orthogonal thereto, i.e., the radial direction.