Patents by Inventor Peter F. Holland

Peter F. Holland 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: 10789877
    Abstract: Devices and methods for underrun compensation are provided. By way of example, a technique for underrun compensation includes determining a particular one of a plurality of pixel configurations for a display. When an underrun condition is detected during processing of first image data via an image processing pipeline, at least a portion of requested image data for downstream processing has not yet been provided by an upstream processing component. Accordingly, upon detecting an underrun condition, underrun pixel data for the at least portion of the requested image data is generated, based upon the particular one of the plurality of pixel configurations.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: September 29, 2020
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Hari Ganesh R. Thirunageswaram
  • Publication number: 20200227010
    Abstract: An electronic device may include a display panel and an image data source designed to determine a differing region in the image frame by comparing source image data and image data corresponding with a previous image frame. The electronic device may also include a display pipeline between the image data source and the display panel. The display pipeline may include image processing circuitry to convert image data from a source space to a display space and image processing circuitry to spatially process the image data. The display pipeline may determine a crop region by converting the differing region to the display space and determine a partial frame region, based on the image data to be spatially processed, by the image processing circuitry. The display pipeline may also determine and retrieve a fetch region smaller than the image frame by converting the partial frame region to the source space.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Assaf Menachem
  • Patent number: 10713748
    Abstract: Display pipeline may manage allocation of total memory bandwidth to memory access requester blocks (e.g., display pipeline as a whole and/or a block in the display pipeline) by dynamically allocating the total memory bandwidth based at least in part on a calculated bandwidth floor to reduce the communication inefficiency (e.g., underruns), excessive power consumption, and image quality degradation of the display pipeline. Image fetch parameters, electronic display parameters, display pipeline parameters, and memory access requester block parameters may be used to determine the appropriate bandwidth floor for each memory access requester of the display pipeline. Additional memory bandwidth may be allocated to memory access requesters of the display pipeline when available bandwidth remains to further reduce likelihood of subsequent communication inefficiencies in the display pipeline.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Mahesh B. Chappalli
  • Patent number: 10706817
    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: Grant
    Filed: September 28, 2018
    Date of Patent: July 7, 2020
    Assignee: Apple Inc.
    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: 10657874
    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: Grant
    Filed: May 1, 2018
    Date of Patent: May 19, 2020
    Assignee: Apple Inc.
    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: 10643572
    Abstract: An electronic device may include a display panel to display an image and a display pipeline to process image data for the image. The display pipeline may include a controller to determine a first potential presentation time based on a maximum refresh rate of the display panel. The controller may also determine if a second target presentation time of a second image is equal to the first potential presentation time before a pipeline configuration time, and if the second target presentation time of the second image is equal to a second potential presentation time that occurs after the first potential presentation time and before a first pre-notification time occurring before the pipeline configuration time. The controller may output a first pre-notification signal at the first pre-notification time that instructs the display panel to pause self-refreshes until after the second image is displayed.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Arthur L. Spence, Christopher P. Tann
  • Patent number: 10636392
    Abstract: An electronic device may include a display panel and an image data source designed to determine a differing region in the image frame by comparing source image data and image data corresponding with a previous image frame. The electronic device may also include a display pipeline between the image data source and the display panel. The display pipeline may include image processing circuitry to convert image data from a source space to a display space and image processing circuitry to spatially process the image data. The display pipeline may determine a crop region by converting the differing region to the display space and determine a partial frame region, based on the image data to be spatially processed, by the image processing circuitry. The display pipeline may also determine and retrieve a fetch region smaller than the image frame by converting the partial frame region to the source space.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Assaf Menachem
  • Publication number: 20200081517
    Abstract: An electronic device may include a display panel to display images based on corresponding image data and an image source to pre-render a flip-book including a first image frame for display at a first target presentation time and a second image frame for display at a second target presentation time. The electronic device may also include a display pipeline coupled between the display panel and the image source having image data processing circuitry to process image data for display. The electronic device may also include a controller to instruct the display pipeline to process image data, to determine a power-on time based on a target presentation time, and to instruct the display pipeline to power-gate the image data processing circuitry upon completion of the processing of image data and until the power-on time is reached.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 12, 2020
    Inventors: Peter F. Holland, Brad W. Simeral, Lior Zimet
  • Publication number: 20200082783
    Abstract: An electronic device may include a display panel to display an image and a display pipeline to process image data for the image. The display pipeline may include a controller to determine a first potential presentation time based on a maximum refresh rate of the display panel. The controller may also determine if a second target presentation time of a second image is equal to the first potential presentation time before a pipeline configuration time, and if the second target presentation time of the second image is equal to a second potential presentation time that occurs after the first potential presentation time and before a first pre-notification time occurring before the pipeline configuration time. The controller may output a first pre-notification signal at the first pre-notification time that instructs the display panel to pause self-refreshes until after the second image is displayed.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 12, 2020
    Inventors: Peter F. Holland, Arthur L. Spence, Christopher P. Tann
  • Publication number: 20200074583
    Abstract: Display pipeline may manage allocation of total memory bandwidth to memory access requester blocks (e.g., display pipeline as a whole and/or a block in the display pipeline) by dynamically allocating the total memory bandwidth based at least in part on a calculated bandwidth floor to reduce the communication inefficiency (e.g., underruns), excessive power consumption, and image quality degradation of the display pipeline. Image fetch parameters, electronic display parameters, display pipeline parameters, and memory access requester block parameters may be used to determine the appropriate bandwidth floor for each memory access requester of the display pipeline. Additional memory bandwidth may be allocated to memory access requesters of the display pipeline when available bandwidth remains to further reduce likelihood of subsequent communication inefficiencies in the display pipeline.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 5, 2020
    Inventors: Peter F. Holland, Mahesh B. Chappalli
  • Publication number: 20200064902
    Abstract: The configuration buffer may be divided into partitions that may effectively function as multiple linked configuration buffers. The linked partitions may each be associated with a portion of the display pipeline (e.g., an image process block) and may each be responsible for loading configuration entries into the programmable register(s) of a portion of the display pipeline. In this manner, the partitions may load the associated programmable register(s) of the display pipeline substantially simultaneously, reducing the time used to configure the entire display pipeline. Since configuration of the display pipeline may occur during the blanking period, a reduction in display pipeline configuration time may reduce the blanking period and increase the time for driving pixels of the display, thereby improving perceived image quality (e.g., pixel yield of the display panel).
    Type: Application
    Filed: August 23, 2018
    Publication date: February 27, 2020
    Inventors: Peter F. Holland, Christopher P. Tann, Malcolm D. Gray, Hari Ganesh R. Thirunageswaram, Kristan Jon Monsen
  • Patent number: 10546558
    Abstract: Systems, apparatuses, and methods for aggregating memory requests with opportunism in a display pipeline. Memory requests are aggregated for each requestor of a plurality of requestors in the display pipeline. When the number of memory requests for a given requestor reaches a corresponding threshold, memory requests may be issued for the given requestor. In response to determining the given requestor has reached its threshold, other requestors may issue memory requests even if they have not yet aggregated enough memory requests to reach their corresponding thresholds.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 28, 2020
    Assignee: Apple Inc.
    Inventors: Marc A. Schaub, Jeffrey J. Irwin, Peter F. Holland
  • Patent number: 10474408
    Abstract: Systems and methods for improving operation of an electronic device, which includes an image data processing pipeline that processes input image data. In the processing pipeline, a first processing block generates first processed image data by performing a first function on the input image data; another one or more processing blocks, which includes a second processing block coupled to a first output of the first processing block, generates second processed image data by performing a second function on the first processed image data when received from the first processing block; and a third processing block coupled to the first output and a second output of the other one or more processing blocks performs a third function on the first processed image data when received from the first processing block and performs the third function on the second processed image data when received from the other one or more processing blocks.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: November 12, 2019
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Mahesh B. Chappalli, David L. Bowman
  • Publication number: 20190340971
    Abstract: Devices and methods for underrun compensation are provided. By way of example, a technique for underrun compensation includes determining a particular one of a plurality of pixel configurations for a display. When an underrun condition is detected during processing of first image data via an image processing pipeline, at least a portion of requested image data for downstream processing has not yet been provided by an upstream processing component. Accordingly, upon detecting an underrun condition, underrun pixel data for the at least portion of the requested image data is generated, based upon the particular one of the plurality of pixel configurations.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Hari Ganesh R. Thirunageswaram
  • Publication number: 20190341007
    Abstract: An electronic device may include a display panel and an image data source designed to determine a differing region in the image frame by comparing source image data and image data corresponding with a previous image frame. The electronic device may also include a display pipeline between the image data source and the display panel. The display pipeline may include image processing circuitry to convert image data from a source space to a display space and image processing circuitry to spatially process the image data. The display pipeline may determine a crop region by converting the differing region to the display space and determine a partial frame region, based on the image data to be spatially processed, by the image processing circuitry. The display pipeline may also determine and retrieve a fetch region smaller than the image frame by converting the partial frame region to the source space.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 7, 2019
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Assaf Menachem
  • Patent number: 10410575
    Abstract: Devices and methods for underrun compensation are provided. By way of example, a technique for underrun compensation includes determining a particular one of a plurality of pixel configurations for a display. When an underrun condition is detected during processing of first image data via an image processing pipeline, at least a portion of requested image data for downstream processing has not yet been provided by an upstream processing component. Accordingly, upon detecting an underrun condition, underrun pixel data for the at least portion of the requested image data is generated, based upon the particular one of the plurality of pixel configurations.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: September 10, 2019
    Assignee: Apple Inc.
    Inventors: Peter F. Holland, Mahesh B. Chappalli, Hari Ganesh R. Thirunageswaram
  • 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: 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: 10261632
    Abstract: One embodiment describes an electronic display that includes display driver circuitry that displays at least a first image frame and a second image frame on the electronic device using a first display pixel and a second display pixel. A timing controller of the electronic display determines at least a first insertion time for a first intra-frame pause for the first image frame and a second insertion time for a second intra-frame pause for the second image frame, which pause rendering of image data to allow the touch sensing circuitry to detect user interaction. The insertion times for the first and second intra-frame pauses are varied from one another by a determined step size.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: April 16, 2019
    Assignee: APPLE INC.
    Inventors: Peter F. Holland, Christopher P. Tann, Malcolm D. Gray
  • 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