Patents by Inventor Udo Krueger
Udo Krueger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11927477Abstract: The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1?) and at least one further actual measurement position (P2? to P5?) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1? to P5?) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actuaType: GrantFiled: July 16, 2021Date of Patent: March 12, 2024Assignee: TECHNOTEAM HOLDING GMBHInventors: Klaus Trampert, Udo Krüger, Christian Schwanengel
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Patent number: 11754439Abstract: The invention relates to a method for photometrical charting of a reflectance standard (Z) illuminated by a license plate light (1). A camera (4) releasable by a control unit (5) is arranged and aligned relative to a holding device (3) configured for holding a reflectance standard (Z) in such a way, that a luminance density image (B1, B2) recorded by the camera (4) at least covers the reflective surface (Z.1) of a reflectance standard (Z) held by the holding device (3). A license plate light (1) is arranged in a positioning device (2) which is movable by the control unit (5). The positioning device (2) is controlled by the control unit (5) in such a way that the license plate light (1) arranged therein is traversed to at least one position (P1, P2), optionally to multiple positions (P1, P2) sequentially, relative to the reflectance standard (Z) arranged in the holding device (3) and held there. In each position (P1, P2), recording of at least one luminance density image (B1, B2) is triggered.Type: GrantFiled: May 17, 2021Date of Patent: September 12, 2023Assignee: TechnoTeam Holding GmbHInventors: Udo Krüger, Christian Schwanengel, Tanja Thiele
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Publication number: 20230281758Abstract: The invention relates to a method for reducing aliasing errors in a moire-corrected final image formed by at least one camera image, wherein the at least one camera image is captured, by a camera (1) having imaging optics (1.1) and a sensor surface (1.2) with sensor pixels (1.3), as the depiction of a display image of a display device (2) with display pixels (2.1) arranged in a matrix-like manner and spaced apart in a display pixel pitch (D A) on the sensor surface (1.2), wherein, during the capture, the camera (1) is shifted relative to the display device (2) along at least one offset path (VP) in relation to a starting position (S). The invention also relates to a method for evaluating the presentation quality of a pixel-based display device (2), and a device for carrying out methods of this type.Type: ApplicationFiled: April 8, 2021Publication date: September 7, 2023Inventors: Ingo ROTSCHOLL, Udo KRÜGER, Franz SCHMIDT, Heiko-Ulrich Klaus KEMPE
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Patent number: 11557111Abstract: The invention relates to a method for determining a start of relaxation (tR) when switching over an optical display device (1) controllable pixel by pixel from a burn-in image (EB?) to a relaxation image (RB), wherein. A trigger image area (TB) having at least one image pixel is set to pixel values such that a parameter determined based on the at least one pixel value across the trigger image area (TB) differs between the burn-in image (EB?) and the relaxation image (RB). The local distribution of a greyscale value is continuously recorded by means of a camera (3, 13). A trigger subfield (20) comprising at least one sensor pixel (15) is defined matching the trigger image area (TB).Type: GrantFiled: June 8, 2021Date of Patent: January 17, 2023Assignee: TechnoTeam Holding GmbHInventors: Udo Krüger, Ingo Rotscholl, Ralf Poschmann, Tobias Porsch
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Publication number: 20220018709Abstract: The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1?) and at least one further actual measurement position (P2? to P5?) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1? to P5?) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actuaType: ApplicationFiled: July 16, 2021Publication date: January 20, 2022Inventors: Klaus TRAMPERT, Udo KRÜGER, Christian SCHWANENGEL
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Publication number: 20210383155Abstract: The invention relates to a method for determining a start of relaxation (tR) when switching over an optical display device (1) controllable pixel by pixel from a burn-in image (EB?) to a relaxation image (RB), wherein. A trigger image area (TB) having at least one image pixel is set to pixel values such that a parameter determined based on the at least one pixel value across the trigger image area (TB) differs between the burn-in image (EB?) and the relaxation image (RB). The local distribution of a greyscale value is continuously recorded by means of a camera (3, 13). A trigger subfield (20) comprising at least one sensor pixel (15) is defined matching the trigger image area (TB).Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Udo KRÜGER, Ingo ROTSCHOLL, Ralf POSCHMANN, Tobias PORSCH
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Publication number: 20210364428Abstract: The invention relates to a method for photometrical charting of a reflectance standard (Z) illuminated by a license plate light (1). A camera (4) releasable by a control unit (5) is arranged and aligned relative to a holding device (3) configured for holding a reflectance standard (Z) in such a way, that a luminance density image (B1, B2) recorded by the camera (4) at least covers the reflective surface (Z.1) of a reflectance standard (Z) held by the holding device (3). A license plate light (1) is arranged in a positioning device (2) which is movable by the control unit (5). The positioning device (2) is controlled by the control unit (5) in such a way that the license plate light (1) arranged therein is traversed to at least one position (P1, P2), optionally to multiple positions (P1, P2) sequentially, relative to the reflectance standard (Z) arranged in the holding device (3) and held there. In each position (P1, P2), recording of at least one luminance density image (B1, B2) is triggered.Type: ApplicationFiled: May 17, 2021Publication date: November 25, 2021Inventors: Udo KRÜGER, Christian SCHWANENGEL, Tanja THIELE
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Patent number: 10979474Abstract: A method of low-latency audio transmission in a mobile communications network utilizing first data frames or subframes encoded according to a first format and shorter second data frames encoded in another second format for audio data. An audio transmission system includes a terminal, a base station, and an audio receiver. The terminal transmits via an uplink audio data that are encoded in the second format and other data that are encoded in the first format. The audio receiver directly receives the audio data transmitted via the uplink. The encoding/decoding of the audio data of one of the second data frames is influenced by other audio data of the same second data frame but not by audio data of another second data frame. Audio transmission from the terminal to the audio receiver is effected in the allocated time slots and frequencies in a waveform in conformity with the mobile communications network.Type: GrantFiled: January 2, 2018Date of Patent: April 13, 2021Assignee: Sennheiser electronic GmbH & Co. KGInventors: Thomas Haustein, Dennis Wieruch, Thomas Wirth, Udo Krüger, Sebastian Georgi, Jan Watermann
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Publication number: 20190356718Abstract: A method of low-latency audio transmission in a mobile communications network utilizing first data frames or subframes encoded according to a first format and shorter second data frames encoded in another second format for audio data. An audio transmission system includes a terminal, a base station, and an audio receiver. The terminal transmits via an uplink audio data that are encoded in the second format and other data that are encoded in the first format. The audio receiver directly receives the audio data transmitted via the uplink. The encoding/decoding of the audio data of one of the second data frames is influenced by other audio data of the same second data frame but not by audio data of another second data frame. Audio transmission from the terminal to the audio receiver is effected in the allocated time slots and frequencies in a waveform in conformity with the mobile communications network.Type: ApplicationFiled: January 2, 2018Publication date: November 21, 2019Applicant: Sennheiser electronic GmbH & Co. KGInventors: Thomas HAUSTEIN, Dennis WIERUCH, Thomas WIRTH, Udo Krüger, Sebastian GEORGI, Jan WATERMANN
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Patent number: 9793930Abstract: In a method, an apparatus and a system for data transmission, a plurality of transmitters are provided, which operate according to a communications standard for data transmission with a bandwidth that is higher than the transmission bandwidth. The transmitter is adapted to the transmission bandwidth, and the plurality of the adapted transmitters are allocated to different carrier frequencies in the transmission bandwidth for parallel data transmission.Type: GrantFiled: October 16, 2015Date of Patent: October 17, 2017Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Volker Jungnickel, Miguel Gutierrez, Udo Krueger
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Publication number: 20160043753Abstract: In a method, an apparatus and a system for data transmission, a plurality of transmitters are provided, which operate according to a communications standard for data transmission with a bandwidth that is higher than the transmission bandwidth. The transmitter is adapted to the transmission bandwidth, and the plurality of the adapted transmitters are allocated to different carrier frequencies in the transmission bandwidth for parallel data transmission.Type: ApplicationFiled: October 16, 2015Publication date: February 11, 2016Inventors: Volker JUNGNICKEL, Miguel GUTIERREZ, Udo KRUEGER
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Patent number: 7760814Abstract: A radio transmission method and a wireless transmission system comprising multiple transmitter and receiver antennae simultaneously operating within the same frequency range and space-time encoders and decoders. Data transmission and channel matrix measurement can take place synchronously. Characteristic pilot signals that are unequivocally recognizable are superimposed with low noise on the data subsignals in the transmitter and are used in the receiver for the analog measurement of the channel matrix in a weighting unit and for the analog recovery of the transmitted data subsignals from the received signals. The measured analog values are digitally processed in a signal processor. The weightings thus determined are then summed in an analog signal processing unit.Type: GrantFiled: March 15, 2003Date of Patent: July 20, 2010Assignee: Siemens AktiengesellschaftInventors: Volker Jungnickel, Udo Krueger, Volker Pohl, Clemens von Helmolt, Thomas Haustein, Slawomir Stanczak
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Patent number: 7366520Abstract: The invention relates to a signal processing method which optimizes the bit error rate under pragmatic conditions. The signalling method is optimally matched to the radio channel, variable with time, in rapid sequence by means of linear operations. Uplink and downlink transmission sides are determined by an excess of antennae on the downlink transmission side. The estimations of the channel matrix in the one transmission direction, necessary for the matching of the transmitter, can, in the absence of common-channel distortions with the condition of channel reciprocity, be directly obtained from the estimations for the other transmission direction. By a suitable linear combination of the transmission signals and, optionally, also the received signals, an error-free bi-directional transmission of data streams can be achieved in Rayleigh and Rice channels with significantly lower transmission powers than in purely receiver-side linear signal processing.Type: GrantFiled: July 3, 2002Date of Patent: April 29, 2008Assignee: Siemens AktiengesellschaftInventors: Thomas Haustein, Eduard Jorswieck, Volker Jungnickel, Udo Krueger, Volker Pohl, Clemens v. Helmolt, Gerhard Wunder
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Publication number: 20060209978Abstract: A radio transmission method and a wireless transmission system comprising multiple transmitter and receiver antennae simultaneously operating within the same frequency range and space-time encoders and decoders. Data transmission and channel matrix measurement can take place synchronously. Characteristic pilot signals that are unequivocally recognizable are superimposed with low noise on the data subsignals in the transmitter and are used in the receiver for the analog measurement of the channel matrix in a weighting unit and for the analog recovery of the transmitted data subsignals from the received signals. The measured analog values are digitally processed in a signal processor. The weightings thus determined are then summed in an analog signal processing unit.Type: ApplicationFiled: March 15, 2003Publication date: September 21, 2006Inventors: Volker Jungnickel, Udo Krueger, Volker Pohl, Clemens Helmolt, Thomas Haustein
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Publication number: 20040171385Abstract: The invention relates to a signal processing method which optimizes the bit error rate under pragmatic conditions. The signalling method is optimally matched to the radio channel, variable with time, in rapid sequence by means of linear operations. Uplink and downplink transmission sides are determined by an excess of antennae on the downplink transmission side. The estimations of the channel matrix in the one transmission direction, necessary for the matching of the transmitter, can, in the absence of common-channel distortions with the condition of channel reciprocity, be directly obtained from the estimations for the other transmission direction. By means of a suitable linear combination of the transmission signals and, optionally, also the received signals, an error-free bi-directional transmission of data streams can be achieved in Rayleigh and Rice channels with significantly lower transmission powers than in purely receiver-side linear signal processing.Type: ApplicationFiled: January 5, 2004Publication date: September 2, 2004Inventors: Thomas Haustein, Eduard Jorswieck, Volker Jungnickel, Udo Krueger, Volker Pohl, Clemens v. Helmolt, Gerhard Wunder
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Patent number: 6008931Abstract: An optical frequency generator provided with an optical comb generator for generating a plurality of frequencies including a central frequency and side bands spaced by a frequency transmitter. The central frequency is adjustably combined with the spectral component of a reference light source. Modification of frequency differences between the central frequency and the reference light source and modification of the transmission frequency of the frequency transmitter displaces the frequency comb of the comb generator or alters its spectral width. A heterodyne receiver connected to the output of the comb generator and a test light source of unknown frequency is provided for determining the frequency of the latter.Type: GrantFiled: October 20, 1997Date of Patent: December 28, 1999Assignee: Heinrich Hertz Institut Fuer nachrichtentechnik Berlin GmbHInventors: Clemens von Helmolt, Udo Krueger