Patents by Inventor Guy Côté

Guy Côté 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).

  • Patent number: 10298929
    Abstract: A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of the picture, and each quantization group uses an index to select an entry from the table for determining its own set of chroma QP offset values. The quantization group specific chroma QP offset values are then used to determine the chroma QP values for blocks within the quantization group in addition to chroma QP offset values already specified for higher levels of the video coding hierarchy.
    Type: Grant
    Filed: December 13, 2015
    Date of Patent: May 21, 2019
    Assignee: APPLE INC.
    Inventors: Alexandros Tourapis, Guy Cote
  • Patent number: 10277896
    Abstract: System and method for improving operational efficiency of a video encoding pipeline, which includes a mode decision block that selects a luma intra-frame prediction mode used to encode a luma component of the source image data and a chroma reconstruction block that determines a first distortion expected to result in a first chroma transform block when each of a plurality of candidate chroma intra-frame prediction modes is implemented based on reconstructed image data, determines a second distortion expected to result in a second chroma transform block of the prediction unit when each of the plurality of candidate chroma intra-frame prediction modes is implemented based at least in part on the source image data, and selects a chroma intra-frame prediction mode used to encode a chroma component from the plurality of candidate chroma intra-frame prediction modes based at least in part on the first distortion and the second distortion.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: April 30, 2019
    Assignee: APPLE INC.
    Inventors: Guy Cote, Athanasios Leontaris
  • Publication number: 20190122636
    Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 25, 2019
    Inventors: Yingying Tang, Chaohao Wang, Sheng Zhang, Yunhui Hou, Paolo Sacchetto, Koorosh Aflatooni, Gokhan Avkarogullari, Guy Cote, Mahesh B. Chappalli, Peter F. Holland
  • Patent number: 10271054
    Abstract: Adaptive video processing for a target display panel may be implemented in or by a decoding/display pipeline associated with the target display panel. The adaptive video processing methods may take into account video content, display characteristics, and environmental conditions including but not limited to ambient lighting and viewer location when processing and rendering video content for a target display panel in an ambient setting or environment. The display-side adaptive video processing methods may use this information to adjust one or more video processing functions as applied to the video data to render video for the target display panel that is adapted to the display panel according to the ambient viewing conditions.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 23, 2019
    Assignee: Apple, Inc.
    Inventors: Kenneth I. Greenebaum, Haitao Guo, Hao Pan, Guy Cote, Andrew Bai
  • Patent number: 10264269
    Abstract: In a coding system, an encoder codes video data according to a predetermined protocol, which, when decoded causes an associated decoder to perform a predetermined sequence of decoding operations. The encoder may perform local decodes of the coded video data, both in the manner dictated by the coding protocol that is at work and also by one or more alternative decoding operations. The encoder may estimate relative performance of the alternative decoding operations as compared to a decoding operation that is mandated by the coding protocol. The encoder may provide identifiers in metadata that is associated with the coded video data to identify such levels of distortion and/or levels of resources conserved. A decoder may refer to such identifiers when determining when to engage alternative decoding operations as may be warranted under resource conservation policies.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: April 16, 2019
    Assignee: Apple Inc.
    Inventors: Alexandros Tourapis, David W. Singer, Krasimir D. Kolarov, Steven E. Saunders, Guy Cote, Sorin Cismas
  • Patent number: 10262605
    Abstract: Systems, methods, and non-transitory media are presented that provide for improving color accuracy. An electronic display includes a display region having multiple pixels each having multiple subpixels. The electronic device also includes a display pipeline coupled to the electronic display. The display pipeline is configured to receive image data and perform white point compensation on the image data to compensate for a current drop in the display to cause the display to display a target white point when displaying white. The display pipeline also is configured to correct white point overcompensation on the image data to reduce possible oversaturation of non-white pixels using the white point compensation. Finally, the display pipeline is configured to output the compensated and corrected image data to the electronic display to facilitate displaying the compensated and corrected image data on the display region.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 16, 2019
    Assignee: APPLE INC.
    Inventors: Adria Fores Herranz, Guy Côté, Arthur L. Spence, Mahesh B. Chappalli, Peter F. Holland, Ross Thompson
  • Patent number: 10250883
    Abstract: A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of the picture, and each quantization group uses an index to select an entry from the table for determining its own set of chroma QP offset values. The quantization group specific chroma QP offset values are then used to determine the chroma QP values for blocks within the quantization group in addition to chroma QP offset values already specified for higher levels of the video coding hierarchy.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 2, 2019
    Assignee: APPLE INC.
    Inventors: Alexandros Tourapis, Guy Cote
  • Patent number: 10242649
    Abstract: Systems and methods for improving displayed image quality of an electronic display including a display pixel and a display driver are provided. A display pipeline receives input image data that indicates target luminance of the display pixel when displaying an image frame on the electronic display; determines a first bit group in pixel response corrected image data by mapping a first bit group in the input image data based at least in part on a first pixel response correction look-up-table; determines a second bit group in the pixel response corrected image data by mapping a second bit group in the input image data based at least in part on a second pixel response correction look-up-table; and outputs the pixel response corrected image data to the display driver to enable the display driver to facilitate displaying the image frame by writing the display pixel based on the pixel response corrected image data.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 26, 2019
    Assignee: Apple Inc.
    Inventors: Mahesh B. Chappalli, Chaohao Wang, Guy Côté, Marc Albrecht
  • Publication number: 20190080666
    Abstract: An electronic display pipeline may process image data for display on an electronic display. The electronic display pipeline may include burn-in compensation statistics collection circuitry and burn-in compensation circuitry. The burn-in compensation statistics collection circuitry may collect image statistics based at least in part on the image data. The statistics may estimate a likely amount of non-uniform aging of the sub-pixels of the electronic display. The burn-in compensation circuitry may apply a gain to sub-pixels of the image data to account for non-uniform aging of corresponding sub-pixels of the electronic display. The applied gain may be based at least in part on the image statistics collected by the burn-in compensation statistics collection circuitry.
    Type: Application
    Filed: January 3, 2018
    Publication date: March 14, 2019
    Inventors: Mahesh B. Chappalli, Christopher P. Tann, Peter F. Holland, Guy Côté, Stephan Lachowsky
  • Publication number: 20190080656
    Abstract: Systems, methods, and non-transitory media are presented that provide for improving color accuracy. An electronic display includes a display region having multiple pixels each having multiple subpixels. The electronic device also includes a display pipeline coupled to the electronic display. The display pipeline is configured to receive image data and perform white point compensation on the image data to compensate for a current drop in the display to cause the display to display a target white point when displaying white. The display pipeline also is configured to correct white point overcompensation on the image data to reduce possible oversaturation of non-white pixels using the white point compensation. Finally, the display pipeline is configured to output the compensated and corrected image data to the electronic display to facilitate displaying the compensated and corrected image data on the display region.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Inventors: Adria Fores Herranz, Guy Côté, Arthur L. Spence, Mahesh B. Chappalli, Peter F. Holland, Ross Thompson
  • Patent number: 10225572
    Abstract: System and method for improving operational efficiency of a video encoding pipeline used to encode image data.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventors: Jim C. Chou, Mark P. Rygh, Guy Côté
  • Publication number: 20190066569
    Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
    Type: Application
    Filed: May 1, 2018
    Publication date: February 28, 2019
    Inventors: Yingying Tang, Chaohao Wang, Sheng Zhang, Yunhui Hou, Paolo Sacchetto, Koorosh Aflatooni, Gokhan Avkarogullari, Guy Cote, Mahesh B. Chappalli, Peter F. Holland
  • Patent number: 10212429
    Abstract: Video processing techniques and pipelines that support capture, distribution, and display of high dynamic range (HDR) image data to both HDR-enabled display devices and display devices that do not support HDR imaging. A sensor pipeline may generate standard dynamic range (SDR) data from HDR data captured by a sensor using tone mapping, for example local tone mapping. Information used to generate the SDR data may be provided to a display pipeline as metadata with the generated SDR data. If a target display does not support HDR imaging, the SDR data may be directly rendered by the display pipeline. If the target display does support HDR imaging, then an inverse mapping technique may be applied to the SDR data according to the metadata to render HDR data for display. Information used in performing color gamut mapping may also be provided in the metadata and used to recover clipped colors for display.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: February 19, 2019
    Assignee: Apple Inc.
    Inventors: Haitao Guo, Hao Pan, Guy Cote, Andrew Bai
  • Patent number: 10187655
    Abstract: System and method for improving operational efficiency of a video encoding pipeline used to encode image data. In embodiments, the video encoding pipeline includes a low resolution pipeline that includes a low resolution motion estimation block, which generates downscaled image data by reducing resolution of the image data and determines a low resolution inter-frame prediction mode by performing a motion estimation search using the downscaled image data and previously downscaled image data.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 22, 2019
    Assignee: Apple Inc.
    Inventors: Jim C. Chou, Mark P. Rygh, Guy Cõté
  • Publication number: 20180366078
    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: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Inventors: Chaohao Wang, Brijesh Tripathi, Christopher Philip Alan Tann, David S. Zalatimo, Guy Cote, Hao Nan, Marc Albrecht, Paolo Sacchetto, Sandro H. Pintz
  • Publication number: 20180350289
    Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 6, 2018
    Inventors: PAUL S. DRZAIC, ROSS THOMPSON, GUY COTE, CHRISTOPHER P. TANN, JERROLD V. HAUCK, YIFAN ZHANG, JEAN-PIERRE GUILLOU, IAN C. HENDRY, VANESSA C. HEPPOLETTE, TAE-WOOK KOH, ARTHUR L. SPENCE
  • Publication number: 20180350295
    Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 6, 2018
    Inventors: PAUL S. DRZAIC, TAE-WOOK KOH, ROSS THOMPSON, GUY COTE, CHRISTOPHER P. TANN, JERROLD V. HAUCK, YIFAN ZHANG, JEAN-PIERRE GUILLOU, IAN C. HENDRY, VANESSA C. HEPPOLETTE, ARTHUR L. SPENCE
  • Publication number: 20180350290
    Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 6, 2018
    Inventors: PAUL S. DRZAIC, ROSS THOMPSON, GUY COTE, CHRISTOPHER P. TANN, JERROLD V. HAUCK, YIFAN ZHANG, JEAN-PIERRE GUILLOU, IAN C. HENDRY, VANESSA C. HEPPOLETTE, TAE-WOOK KOH, ARTHUR L. SPENCE
  • Publication number: 20180350296
    Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 6, 2018
    Inventors: ROSS THOMPSON, GUY COTE, CHRISTOPHER P. TANN, JERROLD V. HAUCK, IAN C. HENDRY, VANESSA C. HEPPOLETTE, ADAM J. MACHALEK, ALAN M. DUNN, ALI SAZEGARI, LARS M. LINDBERG, ARTHUR L. SPENCE
  • Publication number: 20180338078
    Abstract: Some embodiments provide a method of operating a device to capture an image of a high dynamic range (HDR) scene. Upon the device entering an HDR mode, the method captures and stores multiple images at a first image exposure level. Upon receiving a command to capture the HDR scene, the method captures a first image at a second image exposure level. The method selects a second image from the captured plurality of images. The method composites the first and second images to produce a composite image that captures the HDR scene. In some embodiments, the method captures multiple images at multiple different exposure levels.
    Type: Application
    Filed: July 30, 2018
    Publication date: November 22, 2018
    Applicant: Apple Inc.
    Inventors: Guy Cote, Garrett M. Johnson, James Edmund Orr, IV