Patents by Inventor George Walls

George Walls 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: 10390009
    Abstract: An adaptive display calibration system includes a display, a photodetector configured to capture light emitted by the display, and a set-top box connected to the display and the photodetector. The set-top box includes processing circuitry configured to transmit one or more test patterns to the display, and receive one or more measurements of the display from the photodetector in response to the test patterns. Additionally, the processing circuitry of the set-top box determines a capability of the display based on the measurements received from the photodetector and programs the set-top box based on the capability of the display.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: August 20, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Peisong Chen, Richard Hayden Wyman, Gheorghe Berbecel, Frederick George Walls, David C. Wu, Wade Keith Wan
  • Patent number: 10370356
    Abstract: The present invention relates to compounds of formula (I) and salts thereof, pharmaceutical compositions containing such compounds and to their use in therapy
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 6, 2019
    Assignee: GlaxoSmithKline Intellectual Property (No. 2) Limited
    Inventors: Stephen John Atkinson, Emmanuel Hubert Demont, Lee Andrew Harrison, Thomas George Christopher Hayhow, David House, Matthew J. Lindon, Alexander G. Preston, Jonathan Thomas Seal, Ian David Wall, Robert J. Watson, James Michael Woolven
  • Publication number: 20190132643
    Abstract: An apparatus for improved rendering includes a number of processing channels to receive multiple input content sources and to process that input content. A compositor can composite processed input content to generate a composite output signal. An output adaptation block can adapt the composite output signal along with dynamic metadata for display by a display device. Each processing channel includes a statistics generator and an input adaptation block.
    Type: Application
    Filed: April 11, 2018
    Publication date: May 2, 2019
    Inventors: Frederick George WALLS, Richard Hayden WYMAN, Jason William HERRICK, David WU, Brett J. ANDREWS, Wade Keith WAN
  • Patent number: 9978156
    Abstract: A system implements multiple coding formats for coding pixels within a picture. The formats may be selected based on one or more of the input picture and encoding variables. The coding formats may have varying chroma sampling densities. Filtering may be applied to convert among the various formats or to convert a sampled input to a specific chroma sampling density. The format associated with various groups within a coded bitstream may be changed to adapt to evolution of the one or more variables or inputs.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: May 22, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alexander Garland MacInnis, Frederick George Walls, Brian Francis Schoner
  • Patent number: 9906817
    Abstract: Coding circuitry may implement an indexed set of color values that stores color values for a neighbor pixel group. The coding circuitry may obtain a current pixel group for coding. The coding circuitry may code the current pixel group using the indexed set of color values when an indication that there is a compression advantage to coding using the indexed set of color values is present within an input stream. When the indication is not present, the coding circuitry may code the current pixel group using another coding technique.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: February 27, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Patent number: 9883180
    Abstract: A system adjusts the quantization parameter used to encode an image sample (e.g., pixel component). The system accesses a quantization parameter for encoding a current image pixel from an implicit rate control and obtains a measure of another image sample within a particular distance from the sample. When the measure meets a predetermined criterion, the system adjusts the quantization parameter, encodes the pixel after adjusting the quantization parameter, and explicitly indicates the adjusting of the quantization parameter to a decoding system.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: January 30, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Patent number: 9813711
    Abstract: A system implements a hybrid coding mode. The hybrid coding mode may implement a transform to decompose an input stream into frequency components. The frequency components may include frequency bands such as those resulting from a wavelet transform. The frequency components may have associated coefficients which may be determined via the transform. The hybrid coding mode may also implement a predictor-based coding mode. A predictor-based coding mode uses a set of values as predictors for another set of values. The hybrid mode may be implemented by using predictor-based coding to code a portion of the coefficients. For example, a coefficient may be used as a predictor for another coefficient of same frequency component. In some implementations, dynamic selection between a hybrid coding mode and a point coding mode may be used.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: November 7, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Patent number: 9805442
    Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements fine-grained bit rate control allowing for non-integer bit rates to be specified for the system. The non-integer values may allow the system to more accurately characterize a data rate of a communication link between a source and sink. The more accurate characterization may facilitate improved utilization of the communication link capacity.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: October 31, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Patent number: 9451250
    Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements a transformation from actual buffer fullness to rate controlled fullness. With the rate controlled fullness model, the encoders and decoders adapt bit allocation responsive to rate controlled fullness, instead of the actual fullness.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: September 20, 2016
    Assignee: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Publication number: 20160269755
    Abstract: Coding circuitry may implement an indexed set of color values that stores color values for a neighbor pixel group. The coding circuitry may obtain a current pixel group for coding. The coding circuitry may code the current pixel group using the indexed set of color values when an indication that there is a compression advantage to coding using the indexed set of color values is present within an input stream. When the indication is not present, the coding circuitry may code the current pixel group using another coding technique.
    Type: Application
    Filed: May 25, 2016
    Publication date: September 15, 2016
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Publication number: 20160205399
    Abstract: A method and system for coding or decoding is disclosed. The system or method may receive a chroma subsampled picture and map the chroma subsampled picture into a non chroma subsampled format picture. The system or method may receive a non chroma subsampled picture and remap the samples into a chroma subsampled picture.
    Type: Application
    Filed: December 30, 2015
    Publication date: July 14, 2016
    Inventor: Frederick George Walls
  • Patent number: 9380337
    Abstract: Command packets for a personal video recorder that provides for a transport stream (TS) that contains data and also includes a transport packet (TP)/TS formatted command packets. The TP/TS formatted command packet may be communicated between any number of devices, including multiple chips, multiple boards, and multiple processors. A decoder is able to decode the TP/TS formatted command packet and to perform the appropriate operation on data portions of the TS. When a TS is provided to a device not having the capability to perform the proper decoding of the TP/TS formatted command packet, that particular packet may be deemed as being unidentified (or unknown) adaptation field data. Alternatively, the packet may be identified as being corrupted data and/or irrelevant data.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 28, 2016
    Assignee: Broadcom Corporation
    Inventors: Jason Demas, Sandeep Bhatia, Marcus Kellerman, Girish R. Hulmani, Srinivasa Mogathala Prabhakara Reddy, Arun Gopalakrishna Rao, Xuemin Chen, Frederick George Walls
  • Patent number: 9363517
    Abstract: An encoder may implement an indexed color history that stores color values for previously encoded pixels. The encoder may obtain a current pixel or current group of pixels for encoding and determine whether to encode the current pixel using the indexed color history. In doing so, the encoder may compare a color value of the current pixel with color values of the previously coded pixels to determine whether the current pixel is sufficiently similar to a previously coded pixel color value, e.g., by satisfying one or more similarity criteria. When the similarity criteria are satisfied, the encoder may encode the current pixel as an index value referencing the entry in the indexed color history storing a color value that satisfies the similarity criteria. When the similarity criteria are not satisfied, the encoder may encode the current pixel using another encoding method or technique.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: June 7, 2016
    Assignee: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Publication number: 20150143450
    Abstract: A system for compositing images in a compressed bitstream can include memory and first and second modules. The first module can be configured to receive images and corresponding position information that indicates positions of the images in a composite image, determine pixels of the images that will be occluded in the composite image, and store, at memory locations of the memory, pixels of the images that will be visible in the composite image. The second module can be configured to receive the position information, retrieve, from the memory locations, the visible pixels of the images, determine the images corresponding to the visible pixels based at least on the memory locations, and generate the composite image by arranging the visible pixels based at least on the position information. In one or more implementations, the visible pixels can be compressed before being stored in memory and decompressed after being retrieved from memory.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 21, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Jaewon SHIN, Brian Francis SCHONER, Frederick George WALLS
  • Patent number: 8879896
    Abstract: A method and apparatus are disclosed for facilitating efficient operation of trick modes in a personal video recording (PVR) system. Stream-navigation data from a data stream is captured and pre-processed to generate a frame-correlated NAV table comprising one entry for each frame within the data stream, during recording of the data stream. The stream-navigation data comprises start code data, content rating data, and conditional access data that is embedded in the data stream. During playback of the data stream in a user-selected trick mode, the frame-correlated NAV table is used to generate command packets that are sent to a data decoder along with selected frames of the data stream. The selected frames are decoded based on information in the command packets and certain selected frames may be displayed as part of the trick mode.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: November 4, 2014
    Assignee: Broadcom Corporation
    Inventors: Frederick George Walls, David M. Erickson, Marcus Kellerman, Joshua Stults
  • Publication number: 20140294089
    Abstract: A system implements a hybrid coding mode. The hybrid coding mode may implement a transform to decompose an input stream into frequency components. The frequency components may include frequency bands such as those resulting from a wavelet transform. The frequency components may have associated coefficients which may be determined via the transform. The hybrid coding mode may also implement a predictor-based coding mode. A predictor-based coding mode uses a set of values as predictors for another set of values. The hybrid mode may be implemented by using predictor-based coding to code a portion of the coefficients. For example, a coefficient may be used as a predictor for another coefficient of same frequency component. In some implementations, dynamic selection between a hybrid coding mode and a point coding mode may be used.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Publication number: 20140247983
    Abstract: A system implements multiple coding formats for coding pixels within a picture. The formats may be selected based on one or more of the input picture and encoding variables. The coding formats may have varying chroma sampling densities. Filtering may be applied to convert among the various formats or to convert a sampled input to a specific chroma sampling density. The format associated with various groups within a coded bitstream may be changed to adapt to evolution of the one or more variables or inputs.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 4, 2014
    Applicant: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Frederick George Walls, Brian Francis Schoner
  • Publication number: 20140241630
    Abstract: An encoder may implement an indexed color history that stores color values for previously encoded pixels. The encoder may obtain a current pixel or current group of pixels for encoding and determine whether to encode the current pixel using the indexed color history. In doing so, the encoder may compare a color value of the current pixel with color values of the previously coded pixels to determine whether the current pixel is sufficiently similar to a previously coded pixel color value, e.g., by satisfying one or more similarity criteria. When the similarity criteria are satisfied, the encoder may encode the current pixel as an index value referencing the entry in the indexed color history storing a color value that satisfies the similarity criteria. When the similarity criteria are not satisfied, the encoder may encode the current pixel using another encoding method or technique.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 28, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Publication number: 20140160139
    Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements fine-grained bit rate control allowing for non-integer bit rates to be specified for the system. The non-integer values may allow the system to more accurately characterize a data rate of a communication link between a source and sink. The more accurate characterization may facilitate improved utilization of the communication link capacity.
    Type: Application
    Filed: February 13, 2014
    Publication date: June 12, 2014
    Applicant: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Frederick George Walls
  • Patent number: 8743964
    Abstract: A system and method for block-based per-pixel correction for film-based sources. The appearance of mixed film/video can be improved through an adaptive selection of normal deinterlaced video relative to inverse telecine video. This adaptive selection process is based on pixel difference measures of sub-blocks within defined blocks of pixels.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: June 3, 2014
    Assignee: Broadcom Corporation
    Inventor: Federick George Walls