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Kleijn
Aart Willem Kleijn, Amsterdam NL
| Patent application number | Description | Published |
|---|---|---|
| 20100171050 | METHOD FOR REGENERATING A SURFACE OF AN OPTICAL ELEMENT IN AN XUV RADIATION SOURCE, AND XUV RADIATION SOURCE - Method for regenerating a surface of an optical element in a radiation source for electromagnetic radiation with a wavelength in the extreme ultraviolet wavelength range, H (EUV, XUV) in particular with a wavelength in the wavelength range between 10 nm and 15 nm, this radiation source comprising at least a chamber for arranging therein a plasma generating XUV or EUV radiation and the optical element, in particular a collector for bundling XUV or EUV radiation generated by the plasma and causing it to exit the chamber, according to which method a first Si, C or metal compound is arranged in the chamber which reacts in an equilibrium reaction with the material of the surface of the collector to form respectively a second Si, C or metal compound bonded to this surface, and XUV or EUV radiation source adapted for such a method. | 07-08-2010 |
Bastiaan Kleijn, Stocksund SE
| Patent application number | Description | Published |
|---|---|---|
| 20090018825 | LOW-COMPLEXITY, NON-INTRUSIVE SPEECH QUALITY ASSESSMENT - A non-intrusive signal quality assessment apparatus includes a feature vector calculator that determines parameters representing frames of a signal and extracts a collection of per-frame feature vectors (φ;(n)) representing structural information of the signal from the parameters. A frame selector preferably selects only frames (Ω\with a feature vector (φ;(n)) lying within a predetermined multi-dimensional window (⊖). Means determine a global feature set (ψ) over the collection of feature vectors (φ;(n)) from statistical moments of selected feature vector components ((1̂,01, . . . O11). A quality predictor predicts a signal quality measure (Qj from the global feature set (ψ)). | 01-15-2009 |
Bastlaan Kleijn US
| Patent application number | Description | Published |
|---|---|---|
| 20110142126 | LOW BIT RATE CODEC - The present invention relates to improvements of predictive encoding/decoding operations performed on a signal which is transmitted over a packet switched network. The signal is encoded on a block by block basis in such way that a block A-B is predictive encoded independently of any preceding blocks. A start state | 06-16-2011 |
Jacob Kleijn, Wintelre NL
| Patent application number | Description | Published |
|---|---|---|
| 20090310114 | LITHOGRAPHIC APPARATUS, COMPOSITE MATERIAL AND MANUFACTURING METHOD - A lithographic apparatus includes an illumination system configured to condition a radiation beam and a support constructed to support a patterning device. The patterning device may be capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The lithographic apparatus further includes a substrate table constructed to hold a substrate and a projection system configured to project the patterned radiation beam onto a target portion of the substrate. The lithographic apparatus may be provided with a composite material wherein a layer of carbon fiber and a layer of titanium is provided within the composite. | 12-17-2009 |
Jeroen De Kleijn, Ea Eindhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20110234894 | PROFILE FOR FRAME RATE CONVERSION - The present application relates to a method for frame rate conversion. The present application relates also to a system for frame rate conversion and a computer comprising said frame rate. In addition, the present application relates to a computer readable medium having a computer program for performing said method. The method comprises defining a first frame rate profile with a first frame rate, defining at least a second frame rate profile with a second frame rate, rendering video frames at the first frame rate profile, detecting the quality of the rendered video frames, and switching from the first frame rate profile to the second frame rate profile at least depending on the detected quality of the rendered video frames. | 09-29-2011 |
Willem Bastiaan Kleijn, Stocksund SE
| Patent application number | Description | Published |
|---|---|---|
| 20090063158 | EFFICIENT AUDIO CODING USING SIGNAL PROPERTIES - An audio encoder comprising optimizing means ET OPT adapted to generate an optimized encoding template OET based on properties PV of an input audio signal IN, such as in form of a property vector. The optimized encoding template OET is being optimized with respect to a predetermined encoding efficiency criterion. Encoding means ENC then generates an encoded audio signal OUT in accordance with the optimized encoding template OET. The audio encoder may comprise analyzing means AN adapted to generate the set of input signal properties PV based of the input signal IN. In a preferred embodiment the optimizing means ET OPT is adapted to estimate a resulting distortion associated with an encoding template. The optimizing means ET OPT may further be able to estimate bit rate associated with an encoding template. In one embodiment the optimizing means ET OPT is adapted to optimize a bit rate distribution to a number of sub-encoders based on the input signal properties (PV). In another embodiment, the optimizing means ET OPT is adapted to up-front decide on an adaptive segmentation based on the input signal properties (PV). The encoders according to the invention are advantageous in that complex processes of a plurality of encodings prior to deciding upon an optimized encoding template OET can be avoided since the optimal encoding template OET is found based on input signal properties (PV). | 03-05-2009 |
| 20100054279 | ADAPTIVE, SCALABLE PACKET LOSS RECOVERY - A system for transmitting data packets representing a source signal across a packet data network is provided. The encoder comprises a first encoder ( | 03-04-2010 |
| 20100215092 | Method and Apparatus for Multiple Description Coding - The present invention relates to a method and apparatus to be used in designing an index assignment matrix for use in multiple description coding of an information signal. The bandwidth of the index assignment matrix is selected in dependence of transmission condition information relating to a transmission condition of a communication channel onto which a description of the information signal can be transmitted. | 08-26-2010 |
| 20110050997 | FLICKER SUPPRESSION - The invention relates to a method, device and computer-program product for suppression of undesired temporal variations, notably flicker, in a sequence of video frames. Histogram-based and similar approaches generally do not remove all flicker. Features that are resolved only in portions of the flicker cycle will manifest themselves as residual flicker. This effect is near-universal in bright regions of a scene. The inventive solution is a mapping that aims to resolve in the output only those features that are resolved in all frames of the flicker cycle. Use of time-maximal quantile values may preserve non-resolution of such image features that are unresolved due to intermittent bright saturation. Thus, in one embodiment, a reduction of resolution is attained by means of a pixel-value mapping based on selecting, over a time window, maximal and minimal quantile values, with maximal values being used for bright spatial regions and minimal values for dark spatial regions. | 03-03-2011 |
| 20110224975 | LOW-DELAY AUDIO CODER - The present invention relates to methods and devices for encoding and decoding digital audio signals, e.g. a speech signal. An audio coder and a decoder are provided wherein a modeller adds a first distribution model obtained from model parameters of past segments of the digital audio signal and a fixed distribution model, each of the models being multiplied by a weighting coefficient, for obtaining a combined distribution model. The weighting coefficients are selected to minimize a code length of a current segment of the digital audio signal. As the combined distribution model is a sum of several distribution models, wherein at least some of the models is based on the model parameters, flexibility is introduced in the signal model used to encode the digital audio signal. Thus, an audio coder and decoder providing a low bit rate in average, low bit rate variations and low error propagation are provided. | 09-15-2011 |
Willem Bastiaan Kleijn, Stocksund NL
| Patent application number | Description | Published |
|---|---|---|
| 20080205520 | Method of coding a video signal - The invention relates to methods and apparatuses for encoding and decoding of a video sequence. In connection with encoding/decoding a video sequence it is desirable to increase the video quality without having to increase the bit-rate for the encoded video too much, thereby still providing a bit-efficient representation of the video. If multiple descriptions of the video sequence is used the invention improves the video quality without any increase of the bit-rate. According to the invention, this is achieved by using two or more coding units for encoding the same video sequence, wherein the encoding units perform their encoding operations displaced in time in relation to each other. Correspondingly, two or more decoding units are used for decoding the same video sequence, wherein the decoding units perform their decoding operations displaced in time in relation to each other. | 08-28-2008 |
Willem Bastiaan Kleijn, Wellington NZ
| Patent application number | Description | Published |
|---|---|---|
| 20110249810 | DELAY ESTIMATOR - The present invention provides a method and apparatus for finding an estimate of the delay of a signal travelling between two points. A quantity is evaluated from the signal at a final number of time instants, at both a reference point and a reception point. The values are quantized by comparison with a threshold adapted to a typical magnitude of the quantity. If the quantized values from the reception point are shifted back by the true delay with respect to the quantized values from the reference point, then certain co-occurrences of quantized values have very low probability. Hence, the best delay estimate is that shift which yields the least number of low-probability co-occurrences. | 10-13-2011 |
Willem Bastiaan Kleijn, Lower Hutt NZ
| Patent application number | Description | Published |
|---|---|---|
| 20120027028 | ADAPTIVE, SCALABLE PACKET LOSS RECOVERY - A system for transmitting data packets representing a source signal across a packet data network is provided. Additionally provided are methods and an apparatus for encoding parameters representing the source signal and also decoding these parameters. The system allows adaptation to the loss scenario of data packets transmitted across the packet data network. A redundancy encoding is generated with a bit rate continuously scalable, the bit rate being provided by a bit rate controller that uses input from the network and packet-loss rate information. The specification can be changed for each coding block. At the decoder, recovery is performed by a parameter estimator based on a dynamically generated statistical model of the effect of the quantizers. The method may be added to existing lossy source coding systems or may be used to enhance the quality of the reconstructed source signal even in scenarios without packet loss. | 02-02-2012 |
William Bastiaan Kleijn, Stocksund NL
| Patent application number | Description | Published |
|---|---|---|
| 20120039392 | METHOD OF CODING A VIDEO SIGNAL - The invention relates to methods and apparatuses for encoding and decoding of a video sequence. In connection with encoding/decoding a video sequence it is desirable to increase the video quality without having to increase the bit-rate for the encoded video too much, thereby still providing a bit-efficient representation of the video. If multiple descriptions of the video sequence is used the invention improves the video quality without any increase of the bit-rate. According to the invention, this is achieved by using two or more coding units for encoding the same video sequence, wherein the encoding units perform their encoding operations displaced in time in relation to each other. Correspondingly, two or more decoding units are used for decoding the same video sequence, wherein the decoding units perform their decoding operations displaced in time in relation to each other. | 02-16-2012 |