Xu, DE
Baicheng Xu, Nuremberg DE
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20140056393 | Coefficient Calculation Method and Device for Time-Domain Channel Estimation Filter - The present invention provides a method and a device for calculating a coefficient of a time-domain channel estimation filter. The method comprises: acquiring position information and weight information of symbols carrying RS information corresponding to X | 02-27-2014 |
20150189609 | Method and Device for Detecting Secondary Synchronous Signal, Computer Program and Storage Medium - The present invention provides a method and a device for detecting a secondary synchronous signal, a computer program and a storage medium. The method comprises: Step S1: extracting a first SSS sequence from a received signal according a PSS detection result; Step S2: performing rotation on the first SSS sequence, to obtain at least two second sequences including the first SSS sequence, channel paths corresponding to the at least two second sequences being located within a channel window in a time domain; Step S3: calculating a channel estimation result of each of the second sequences corresponding to each of SSS standard sequences; Step S4: selecting, according to the channel estimation result, valid channel paths corresponding to the respective SSS standard sequence from the channel paths corresponding to the second sequences; Step S5: calculating a signal-to-noise ratio corresponding to the respective SSS standard sequence according to the valid channel paths corresponding to the respective SSS standard sequence; and Step S6: determining a cell ID according to the SSS standard sequence corresponding to a maximum signal-to-noise ratio. According to the present invention, it is able to improve the accuracy of the SSS detection. | 07-02-2015 |
Bangnan Xu, Darmstadt DE
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20080259874 | FLOW BASED LAYER 2 HANDOVER MECHANISM FOR MOBILE NODE WITH MULTI NETWORK INTERFACES - A method for handing-off a mobile node (MN) from one network interface to another network interface, the network interfaces being connected to a same level | 10-23-2008 |
20100110919 | METHOD AND DEVICE FOR CONTROLLING DATA CONNECTIONS IN A DATA NETWORK HAVING A PLURALITY OF DATA NETWORK NODES - A method and a device for controlling data connections in a data network including a plurality of data network nodes. The quality of a first data connection is evaluated on the basis of the adaptations of at least one coding used for the first data connection, and a second data connection is established according to the evaluation and used as a replacement for the first data connection. | 05-06-2010 |
Chaojun Xu, Mannheim DE
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20130191176 | METHOD AND DEVICE FOR CO-ORDINATING TWO CONSECUTIVE PRODUCTION STEPS OF A PRODUCTION PROCESS - A method and apparatus are disclosed for coordinating two consecutive production steps of a production process including: a) devising a production schedule of a first manufacturing stage according to a first optimization target based on one or more first optimization parameters, in order to obtain a first optimization result; b) devising a production schedule of a second manufacturing stage according to a second optimization target based on one or more second optimization parameters, in order to obtain a second optimization result; c) assessing the optimization results with regard to an overall optimization target; d) modifying the first and second optimization parameters; and e) repeating the process of devising the production schedules of the first and second manufacturing stages according to the respective optimization target based on the modified first and/or second optimization parameters. | 07-25-2013 |
Chihao Xu, Saarbruecken DE
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20110063201 | METHOD, SYSTEM AND APPARATUS FOR POWER SAVING BACKLIGHT - A method and system for displaying an image on a liquid crystal display (LCD). The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness substantially greater than or equal to a gray value of each pixel of the image. | 03-17-2011 |
20110063331 | METHOD, SYSTEM AND APPARATUS FOR POWER SAVING BACKLIGHT - A method and system for displaying an image on a liquid crystal display (LCD). The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness or brightness value substantially greater than or equal to a gray value of each pixel of the image. | 03-17-2011 |
20110181632 | METHOD AND DRIVER FOR ACTUATING A PASSIVE-MATRIX OLED DISPLAY - A method and unit for controlling a passive matrix-OLED-display with OLEDs assembled in matrix form, wherein columns for controlling an OLED are connected with a current source, and rows are connected consecutively during row addressing time. The lightness of a pixel located on the intersection point of a column with an addressed row is influenced by the turn-on time being within the row addressing time and by the amplitude of the column current. To reach an energy-efficient control it is proposed to control the lightness of the pixel subject to the charge quantity converted into light and subject to a charge quantity during a post luminescence time and converted into light by switching the column potential-free during post luminescence time and considering the charge quantity stored in the capacity of OLEDs before the addressing at determination of the charge quantity converted at the OLED. | 07-28-2011 |
20130141469 | ACTIVE MATRIX ORGANIC LIGHT-EMITTING DIODE DISPLAY AND METHOD FOR DRIVING THE SAME - In one exemplary embodiment, a method for driving an AMOLED display having OLED arranged in rows and columns, a pixel circuit for driving an OLED, a scan line for selecting the pixel circuits of each row and a data line for controlling the pixel circuits of each column and supply lines connectable to the anodes and cathodes of the AMOLED pixels may be described. The method may be steps for decomposing image data into a plurality of subframes based on a dependence of physical characteristics of the AMOLED display; generating binary subframe signals according to the decomposed subframes; activating an OLED, based on a scan signal on the scan line and a generated subframe signal applied on the data line, allowing or blocking a current to flow through the organic light emitting diode; and connecting the supply lines to a voltage source for a predetermined duration for each subframe. | 06-06-2013 |
20130278641 | METHOD, SYSTEM AND APPARATUS FOR POWER SAVING BACKLIGHT - A method, apparatus, and system for displaying an image on a liquid crystal display (LCD). The method, apparatus, and system can include condensing a plurality of pixel gray values to a concentrated pixel, the concentrated pixel assigned to a geometric position on a display and described by at least one of a plurality of parameters and gray value; forming the concentrated pixels to a condensed image; resolving a light spread function of a first LED in substantially the same resolution as the condensed image; calculating a backlight needed based on the condensed image; and optimizing a value of a plurality of LEDs by considering the contribution of the plurality of LEDs on the concentrated pixel, wherein light spread functions of the LEDs are used. | 10-24-2013 |
Chihao Xu, Saarbrucken DE
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20090195563 | METHOD FOR DRIVING MATRIX DISPLAYS - A method is described for driving matrix displays which are made up of a plurality of lines with individual pixels, which lines are configured as rows and columns, wherein individual lines are driven selectively by rows being activated for a defined row addressing time and an operating current or a corresponding voltage being applied to the columns in correlation with the activated row corresponding to the desired brightness in the pixels. In order to improve the performance of the display, the row addressing time for each row is determined as a function of the maximum brightness of all the columns of the row. | 08-06-2009 |
Haitao Xu, Goettingen DE
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20160119612 | METHOD OF AND APPARATUS FOR OPTICALLY DETERMINING POSITIONS AND ORIENTATIONS OF MIRRORS - For determining positions and orientations of mirrors, the mirrors are illuminated with parallel light rays. A first camera is arranged in an image plane onto which an objective images the mirrors. A second camera is arranged in a focal plane of the objective, and a third camera is arranged in an intermediate plane located at distances to both the image and the focal plane. At a same point in time, a first, a second and a third picture are taken with the first, the second and the third camera, respectively. The positions and the orientations of the mirrors are determined from light spots in the first and the second picture, respectively; and which of the orientations belongs to which of the positions is determined by correlating light spots in the third picture with both the light spots in the first and in the second picture. | 04-28-2016 |
Hongya Xu, Munich DE
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20160119017 | MULTIPLEXER DEVICE WITH MULTIPLE NOTCH FILTERS CONNECTED IN PARALLEL - A multiplexer device includes an antenna node connected to an antenna for at least one of receiving and transmitting signals; multiple band pass filters connected to the antenna node, each band pass filter having a different passband; and multiple notch filters connected in to the antenna node and the multiple band pass filters, each notch filter having a different stopband corresponding to one of the passbands of the band pass filters. The notch filters are connected in parallel with one another in order to reduce insertion loss. | 04-28-2016 |
Jia Xu, Aachen DE
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20090326916 | UNSUPERVISED CHINESE WORD SEGMENTATION FOR STATISTICAL MACHINE TRANSLATION - Described is using a generative model in processing an unsegmented sentence into a segmented sentence. A segmenter includes the generative model, which given an unsegmented sentence (e.g., in Chinese) provides candidate segmented sentences to a probability-based decoder that selects the segmented sentence. For example, the segmented (e.g., Chinese-language) sentence may be provided to a statistical machine translator that outputs a translated (e.g., English-language) sentence. The generative model may include a word sub-model that generates hidden words using a word model, a spelling sub-model that generates characters from the hidden words, and an alignment sub-model that generates translated words and alignment data from the characters. The word sub-model may correspond to a unigram model having words and associated frequency data therein, and the alignment sub-model may correspond to a word aligned corpus having source sentence, translated target sentence pairings therein. Training is also described. | 12-31-2009 |
Jianmin Xu, Berlin DE
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20140314578 | SECURING SEGMENT FOR THE VIBRATION DAMPING OF TURBINE BLADES AND ROTOR DEVICE - A retaining segment for axially securing at least one rotor blade on a disk wheel of a rotor device of a jet engine is operatively connectable to at least one rotor blade and to a disk wheel. In a first peripheral area of the retaining segment that is laterally disposed in the circumferential direction in the installed state, a projecting region is provided, and in a second lateral peripheral area facing away from the first peripheral area, a receiving region is provided. The projecting region at least partially overlaps a receiving region of a retaining segment that is identical in design and arranged adjacently in the circumferential direction, and for performing frictional work with the receiving region. A rotor device has rotor blades arranged via blade roots substantially in the axial direction inside recesses of a disk wheel and secured by several such retaining segments. | 10-23-2014 |
Kuiying Xu, Saarbrucken DE
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20140057953 | BIARYL DERIVATIVES AS SELECTIVE 17BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 2 INHIBITORS - The invention relates to selective, non-steroidal 17beta-hydroxysteroid dehydrogenase type 2 (l7beta-HSD2) inhibitors of formula (I), their production and use, notably for the treatment and prophylaxis of sex steroid deficient diseases like osteoporosis in men and women. | 02-27-2014 |
Qiang Xu, Starnberg DE
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20080257162 | EFFICIENT DROP SEPARATOR - Drop separator arrangement for a gas scrubber, with at least one drop separator layer which comprises a plurality of profile sets having drop separator lamellae arranged in a V-shaped manner and which is equipped with at least one scavenging device for the regular washing of the drop separator lamellae, the profile sets being capable of being arranged on carrying beams of the gas scrubber, characterized in that the drop separator lamellae have a mounting which is arranged in the flow shadow of the carrying beam. | 10-23-2008 |
20080264262 | SUPPORTING STRUCTURE FOR THE NOZZLE-SPRAYING PLANT OF A DROP SEPARATOR SYSTEM - Flue-gas scrubber, comprising at least one horizontally installed drop separator module mounted by means of carrying beams and at least one nozzle-spraying plant having at least one nozzle-spraying pipe, the at least one nozzle-spraying plant being designed with a supporting structure for the nozzle-spraying pipes, characterized in that the supporting structure is designed with at least one suspension which at least partially surrounds a carrying beam and which has for at least one carrying bar mountings projecting on both sides of the carrying beam, this at least one carrying bar serving as a rest for the at least one nozzle-spraying pipe. | 10-30-2008 |
20080264263 | GAS SCRUBBER WITH ADAPTED DROP SEPARATORS - Gas scrubber, with at least one drop separator level which spans a cross section of the gas scrubber, the gas scrubber comprising at least one edge rest and a plurality of carrying beams, spanning the cross section, for the mounting of drop separators which jointly delimit a free flow cross section of the gas scrubber, at least 95% of the free flow cross section being designed with throughflow drop separators. This is achieved preferably in that drop separators are used having a plurality of drop separator lamellae which are arranged at an inclination to one another and are fixed by means of at least two end plates of unequal level or non-parallel. | 10-30-2008 |
Thian-Hua Xu, Karlsbad DE
Tian-Hua Xu, Karlsbad DE
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20090251706 | VIBROMETER AND METHOD FOR OPTICALLY MEASURING AN OBJECT - A vibrometer and a method for optically measuring oscillations at an object, including a radiation source for creating a source beam, a beam splitter to split the source beam into a measuring beam and a reference beam, an optic interference device for interfering the reference beam with a measuring beam, at least partially reflected by the object, and a detector, with the interference device and the detector being embodied cooperating such that a measuring beam, at least partially deflected by the object, and the reference beam interfere on the detector. The vibrometer is embodied as a heterodyne vibrometer, having an optic frequency shift unit, which is arranged in the optical path of the vibrometer, to form a carrier frequency by creating a frequency difference between the measuring beam and the reference beam. The beam splitter and the frequency shift unit are embodied as an acousto-optic modulator in an optic construction element to deflect the source beam, with the acousto-optic modulator being embodied such that the source beam entering the acousto-optic modulator can be split into at least two diffraction beams: a first diffraction beam of diffraction order of 1 and a second diffraction beam of diffraction order of −1, and the acousto-optic modulator is arranged in the optical path of the vibrometer such that one of the two diffraction beams represents the measurement beam and the other diffraction beam represents the reference beam. | 10-08-2009 |
Xiaochun Xu, Heidelberg DE
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20110145788 | BRIDGING CODE CHANGES AND TESTING - Method and system for testing software code comprising determining code elements in software code, determining changed code elements in the software code, determining dependencies between code elements, determine dependency changes between code elements based on the determined changed code elements, determining an impact factor for the respective changed code elements based on the determined dependency changes, determine a test relevancy ranking for code tests based on the determined impact factor, selecting tests for the software code based on said test relevancy ranking, and performing the selected tests on the software code. | 06-16-2011 |
Yanhui Xu, Stuttgart Sommerrain DE
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20160111986 | ELECTRONICALLY COMMUTATED ELECTRIC MOTOR WITH HARMONIC COMPENSATION - The invention relates to an electronically commutated electric motor with a stator and a rotor, which is designed as a permanent magnet rotor in particular. The electric motor also has a control unit which is connected to the stator. The control unit is designed to generate control signals for energizing the stator coils of the stator in order to generate a rotational magnetic field. The electric motor is designed to at least partly compensate for a torque ripple of a torque generated by the rotor. According to the invention, the electric motor has a rotor position sensor and a current sensor. The current sensor is designed to detect currents flowing in the stator coils and to generate a current signal which represents the currents. The control unit preferably has a processing unit which is designed to ascertain harmonics of the electromotive force dependent on the current signal, a voltage applied to the stator coils, and a rotor position signal generated by the rotor position sensor and to generate a control signal which compensates for the effect of the harmonics. The control unit, in particular the processing unit, is designed to superimpose the compensating control signal with the control signal so as to completely or at least partly compensate for the effect of the harmonics and thus the torque ripple. | 04-21-2016 |
Yiwen Xu, Friedrichshafen DE
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20150054501 | METHOD FOR INSPECTING A COMPONENT ON THE BASIS OF BARKHAUSEN NOISES - A method of inspecting a component ( | 02-26-2015 |
20150061647 | METHOD FOR CALIBRATING A MEASURING DEVICE FOR INSPECTING SURFACES ON THE BASIS OF BARKHAUSEN NOISES FOR A SPECIFIED COMPONENT GEOMETRY - A method for enhancing inspection of components of specific geometry based on Barkhausen noises. The method includes specifying a first calibration curve that is independent of the component geometry, which describes the relationship between surface hardness values and measured Barkhausen noise signals. A first noise signal is determined by the measuring device for a reference component having the specified geometry and a first hardness value. A second noise signal is determined for a second reference component, having the specified geometry and a second hardness value lower than the first. A second calibration curve is determined, in which the first calibration curve is fitted to the first noise signal at the first hardness value and to the second noise signal at the second hardness value, such that using the second calibration curve, the measured noise signal of a component having the specified geometry relates with a surface hardness value. | 03-05-2015 |
Yuhuan Xu, Bochum DE
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20090131123 | REDUCED POWER CONSUMPTION IN SOFTWARE RADIOS - Provided are apparatuses and methods for reducing processor load or power consumption during channel estimation in a receiver. For example, a receiver may monitor a transmission channel and determine if a change in channel parameters or characteristics has occurred. If a change is detected, the receiver may update filter coefficients associated with channel estimation. If a change is not detected, the filter coefficients may be maintained such that no change or updated is made to the filter coefficients. | 05-21-2009 |
Zhi Jiong Xu, Karlsruhe DE
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20110054962 | TRANSFORMING SERVICE ORIENTED ARCHTECTURE MODELS TO SERVICE ORIENTED INFRASTRUCTURE MODELS - Described herein are methods and systems for SOA to SOI transformation. The transformation is performed by a transformation engine, driven by a transformation algorithm. A “used case database”, to provide the current know-how information for such transformations, and a “performance database”, to describe new hardware parts with more powerful metrics are incorporated into the transformation algorithm. In addition, a business engine supports the transformation engine with business analyzing features using a “business value database”. | 03-03-2011 |