Patents by Inventor Marc Albrecht

Marc Albrecht 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).

  • Publication number: 20200335047
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.
    Type: Application
    Filed: May 21, 2019
    Publication date: October 22, 2020
    Inventors: Duane M. Petrovich, Sean C. Chang, Tobias Jung, Pierre-Yves Emelie, Marc Albrecht, Chen Zheng, Andrei E. Toma, Kevin W. Sliech, Mingxia Gu, Wei H. Yao
  • Patent number: 10803828
    Abstract: Systems, methods, and computer readable media to improve the operation of display systems are disclosed. In general, techniques are disclosed for dynamically adjusting backlight elements based on image content. More particularly, a backlight element's intensity may be targeted for boosting (i.e., increasing) based on content of the backlight element's corresponding image region, where after a check may be made to determine if the proposed increase is likely to risk generation of a halo. If the proposed intensity increase would risk a halo, the backlight element's proposed intensity may be dimmed. Repeating the boost/dim cycle in an iterative fashion permits an image to be displayed with brighter highlights and deeper blacks.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 13, 2020
    Assignee: Apple Inc.
    Inventors: Ameya Joshi, Marc Albrecht, Sean Chang, Tobias Jung
  • Patent number: 10793417
    Abstract: A device for fueling motor vehicles with a fluid used as a fuel and composed of liquefied gas, in particular liquefied natural gas, includes: at least one storage container; a cooling device; at least one conveying device for feeding the fluid from the at least one storage container to at least one fueling device for motor vehicles; and at least one line for supplying the fluid to the fueling device. The at least one line includes a media-conveying central pipeline as a medium pipe and at least one additional media-conveying pipeline that is arranged concentrically with respect to the central pipeline and defines an annular space together with the media-conveying central pipeline. The media-conveying central pipeline and the at least one annular space supply and return the fluid or a gas flow. The at least one additional media-conveying pipeline is surrounded by a jacket pipe.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: October 6, 2020
    Assignee: BRUGG ROHR AG HOLDING
    Inventors: Joern Homann, Thomas Albrecht, Marc Oliver Herbst
  • Patent number: 10789902
    Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 29, 2020
    Assignee: Apple Inc.
    Inventors: Chaohao Wang, Brijesh Tripathi, Christopher Philip Alan Tann, David S. Zalatimo, Guy Cote, Hao Nan, Marc Albrecht, Paolo Sacchetto, Sandro H. Pintz
  • Patent number: 10754963
    Abstract: Access in a knowledge graph, comprising nodes and edges connecting two or more nodes, is controlled by assigning each node to a non-intersecting zone. A first and second zone identifier, each indicative of a zone occupied by a node where an edge ends, are each stored. Determining an access graph comprising an access node for each zone, access edges representing edges between the zones, and a first list of the zones. Each entry in the first list relates to a zone and a second list of node identifiers, each indicative of a node occupying the zone. A first and second access control list, each related to a zone where an access edge ends and to which a access node in the access graph relates, are stored in each access edge.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 25, 2020
    Assignee: International Business Machines Corporation
    Inventors: Tim U. Scheideler, Florian Graf, Erik Rueger, Marc Albrecht
  • Patent number: 10733942
    Abstract: Aspects of the subject technology relate to electronic devices with displays and ambient light sensors. An electronic device modifies the color of images to be displayed based on measured ambient light color. The modification is performed in a perceptually uniform color space and includes a determination of a bleaching effect of reflected ambient light, and a determination of a color correction factor to be applied within the perceptually uniform color space, based on the determined bleaching effect. The modification may also include an application of a strength factor that mitigates out-of-gamut colors in color compensated images.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 4, 2020
    Assignee: Apple Inc.
    Inventors: Francisco H. Imai, Chi Zhang, Adria Fores Herranz, Jiaying Wu, Arthur L. Spence, Marc Albrecht
  • Patent number: 10714049
    Abstract: Systems and methods for improving perceived image quality of an electronic display, which includes a display region with a rounded border and a display pixel at a pixel position adjacent the rounded border. A display pipeline communicatively coupled to the electronic display receives first image data that indicates target luminance at the pixel position in a rectangular image frame; determines a gain value associated with the pixel position from a gain map, in which the gain value is inversely proportional to distance between the display pixel and the rounded border; determines second image data that indicates target luminance of the display pixel by processing the first image data based at least in part on the gain value; and outputs the second image data to the electronic display to facilitate displaying a non-rectangular portion of the image frame on the display region.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventors: Myung-Je Cho, Jim Chou, Marc Albrecht, Jean-Pierre Guillou
  • Publication number: 20200202791
    Abstract: A display may have an active area that includes display pixels. The display may include an inactive notch region that extends into the active area. Data lines may provide image data from display driver circuitry to the display pixels. The image data may include data signals that correspond to portions of the display that do not include pixels, such as the inactive notch region. The null data signals may cause nonuniformities in the displayed image. The null data signals may be adjusted to minimize the nonuniformities. Null data signals corresponding to the inactive notch region may be adjusted to have gray levels that gradually decrease with distance from the border between the inactive notch and the active area. All of the data signals corresponding to the inactive notch may be set to a uniform gray level.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Inventors: Koorosh Aflatooni, Warren S. Rieutort-Louis, Jean-Pierre S. Guillou, Pierre-Yves Emelie, Myung-Je Cho, Marc Albrecht, Graeme M. Williams, Sean C. Chang, Zhao Wang
  • Patent number: 10672320
    Abstract: A display device may include a processor that may receive image data, such that the image data may include gray level data and display brightness value (DBV) data for a first pixel of a display. The processor may then determine a gain compensation factor associated with the first pixel based on a correction spatial map, a brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may then determine an offset compensation factor associated with the first pixel based on the correction spatial map, the brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may generate compensated gray level data by applying the gain compensation factor and the offset compensation factor to the gray level data and transmit the compensated gray level data to pixel driving circuitry associated with the first pixel.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 2, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Soojin Park, Bhadrinarayana L. Visweswaran, Chieh-Wei Chen, Anshi Liang, Marc Albrecht, Pierre-Yves Emelie, Sean C. Chang, Hyunwoo Nho, Mohammad Hajirostam, Myung-Je Cho, Shengkui Gao, Wei H. Yao, Yafei Bi
  • Patent number: 10665181
    Abstract: An electronic device may be provided with a display. The display may include a backlight having an array of locally dimmable light sources. Control circuitry may provide control signals to the backlight to produce light at different brightness levels. When the brightness level is below a threshold, the control circuitry may use pulse-width-modulation control signals to control the light sources in the backlight. When the brightness level is above the brightness threshold, the control circuitry may use analog control signals to control the light sources in the backlight. The control circuitry may adjust the threshold to achieve different dimming ranges for different brightness settings. A low brightness setting, for example, may have a lower threshold and lower dimming range than a high brightness setting, which may help produce darker darks when the display operates in a low brightness setting.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Marc Albrecht, Teun R. Baar, Nicolas P. Bonnier, Sean Chang, ByoungSuk Kim, David S. Zalatimo
  • Patent number: 10665141
    Abstract: Source content super-sampled to a first resolution in an extended range space is obtained. A representation of a subpixel geometry of a display panel displaying the source content is obtained. The display panel includes, for every pixel, plural subpixel elements for three or more color primaries. A native resolution of the display panel is lower than the first resolution of the source content. An optimization operation is performed based on a set mode of the display panel and the representation of the subpixel geometry to derive a global optimization for determining, for a given pixel value based on the source content, an energy distribution between the plurality of subpixel elements of a corresponding pixel of the display panel. The source content in the extended range space is converted into intermediate content in a display space based on the global optimization. The intermediate content is further optimized based on error minimization.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Kenneth I. Greenebaum, Robert L. Ridenour, Marc Albrecht
  • Patent number: 10665157
    Abstract: Systems and methods reduce likelihood of hysteresis that reduces perceived image quality of a subsequent image frame by toggling the display pixels to relax the display pixels by overwriting previous image frame data. During non-emission periods of the pixels, the pixels may be pre-toggled or exercised to improve response time and accuracy of the pixel. Data for pixels being programmed may also be used to pre-toggle other pixels reducing overhead but increasing cross-talk. Since the amount of cross-talk is related to content of the pixels being pre-toggled, a line buffer may be used to store image data for the pixels being pre-toggled. This stored image data may be used to determine how much pre-compensation is to be applied to data for the pixels being programmed. In other words, an amount of compensation applied is based at least in part on the content (e.g., greyscale levels) of the image data.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Shengkui Gao, Yingying Tang, Sean C. Chang, Mohammad B. Vahid Far, Kasra M. Omid-Zohoor, Chumin Zhao, Jingyu Huang, Mohammad Ali Jangda, Hyunwoo Nho, Chaohao Wang, Marc J. DeVincentis, Marc Albrecht, Warren S. Rieutort-Louis
  • Patent number: 10643549
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Tobias Jung, Marc Albrecht, Duane M. Petrovich, Sean C. Chang, David S. Zalatimo, Pierre-Yves Emelie, Manev Luthra, Chengrui Le, Lingyu Hong, Wei H. Yao
  • Publication number: 20200126033
    Abstract: A method of an embodiment includes obtaining first measurement data indicative of one or more environmental conditions of field devices during a shipment of the field devices; obtaining second measurement data indicative of one or more operational conditions of the field devices during an operation of the of field devices; and performing a comparison of the first measurement data and the second measurement data to obtain correlation data indicative of an impact of the one or more environmental conditions on the operation of the field devices.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 23, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Eric ALBRECHT, Quoc-Viet NGUYEN, Anton BAUMANN, Herbert PERTL, Manuel BERBIG, Julian WAGNER, Carlos J. DE OLIVEIRA, Marc SCHWENGER, Anne HORST, Markus JECHOW, Igor RABYNOVYCH, Edgar SCHULLER
  • Publication number: 20200105171
    Abstract: Source content super-sampled to a first resolution in an extended range space is obtained. A representation of a subpixel geometry of a display panel displaying the source content is obtained. The display panel includes, for every pixel, plural subpixel elements for three or more color primaries. A native resolution of the display panel is lower than the first resolution of the source content. An optimization operation is performed based on a set mode of the display panel and the representation of the subpixel geometry to derive a global optimization for determining, for a given pixel value based on the source content, an energy distribution between the plurality of subpixel elements of a corresponding pixel of the display panel. The source content in the extended range space is converted into intermediate content in a display space based on the global optimization. The intermediate content is further optimized based on error minimization.
    Type: Application
    Filed: November 20, 2018
    Publication date: April 2, 2020
    Inventors: Kenneth I. Greenebaum, Robert L. Ridenour, Marc Albrecht
  • Patent number: 10607549
    Abstract: A display may have an active area that includes display pixels. The display may include an inactive notch region that extends into the active area. Data lines may provide image data from display driver circuitry to the display pixels. The image data may include data signals that correspond to portions of the display that do not include pixels, such as the inactive notch region. The null data signals may cause nonuniformities in the displayed image. The null data signals may be adjusted to minimize the nonuniformities. Null data signals corresponding to the inactive notch region may be adjusted to have gray levels that gradually decrease with distance from the border between the inactive notch and the active area. All of the data signals corresponding to the inactive notch may be set to a uniform gray level.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: March 31, 2020
    Assignee: Apple Inc.
    Inventors: Koorosh Aflatooni, Warren S. Rieutort-Louis, Jean-Pierre S. Guillou, Pierre-Yves Emelie, Myung-Je Cho, Marc Albrecht, Graeme M. Williams, Sean C. Chang, Zhao Wang
  • Patent number: 10600379
    Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: March 24, 2020
    Assignee: Apple Inc.
    Inventors: Prasanna Nambi, Jason N. Gomez, Fenghua Zheng, Paolo Sacchetto, Sandro H. Pintz, Taesung Kim, Christopher P. Tann, Marc Albrecht, David W. Lum
  • Patent number: 10571744
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 25, 2020
    Assignee: Apple Inc.
    Inventors: Sean C. Chang, Tobias Jung, Marc Albrecht, Abdeslam Hafidi, Jun Qi, Duane M. Petrovich, Mingxia Gu, Xiang Fang, Pierre-Yves Emelie, Wei H Yao
  • Patent number: 10535287
    Abstract: Systems and methods are provided for improving displayed image quality of an electronic display that includes a display pixel. The electronic display displays a first image frame directly after a second image frame by applying an analog electrical signal to the display pixel. To facilitate display of the first image frame, circuitry receives image data corresponding to the image frame, in which the image data includes a grayscale value that indicates target luminance of the display pixel; determines expected refresh rate of the first image frame based at least in part on actual refresh rate of the second image frame; determines a pixel response correction offset based at least in part on the expected refresh rate of the first image frame; and determines processed image data by applying the pixel response correction offset to the grayscale value, in which the processed image data indicates magnitude of the analog electrical signal.
    Type: Grant
    Filed: September 24, 2016
    Date of Patent: January 14, 2020
    Assignee: Apple Inc.
    Inventors: Chaohao Wang, Lu Zhang, Zhibing Ge, Shih-Chyuan Fan Jiang, Ilie Garbacea, Marc Albrecht, Kingsuk Brahma, Hopil Bae, Paolo Sacchetto, Jie Won Ryu, Sandro H. Pintz, Chengrui Le
  • Patent number: 10525978
    Abstract: A method for controlling a parking mode for a vehicle includes detecting an activation action of a user of the vehicle, determining a movement status of the vehicle, and activating a parking mode for the vehicle by closing a parking brake of a brake device of the vehicle and by engaging a gearshift lock of a transmission of the vehicle.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: January 7, 2020
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Peter Megyesi, Alfred Aden, Michael Bott, Thomas Eggert, Christoph Braeuninger, Oliver Baenfer, Marc Albrecht