Patents by Inventor David Metcalfe

David Metcalfe 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: 20180213553
    Abstract: Aspects of the disclosure include a wireless device in a mesh network. The wireless device includes a processing circuit and a transceiver. The processing circuit is configured to update a first selection model based on first operation history information of operating the wireless device in the mesh network, and determine whether the wireless device is to transmit or receive subsequent mesh control information (MCI) of the mesh network during a subsequent MCI transmitting/receiving (Tx/Rx) window based on the first selection model. The transceiver is configured to transmit or receive the subsequent MCI during the subsequent MCI Tx/Rx window as determined based on the first selection model.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 26, 2018
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Francesc Boixadera Espax, David Metcalf, Miquel Eduard Oliver Cardona, Mark Murphy
  • Patent number: 9928187
    Abstract: What is disclosed is a system and method for increasing throughput in the image processing path of a digital document reproduction device. A digital image to be processed is received. Memory is allocated into two buffers, B[0] and B[1]. Each buffer has size S B ? M 2 , where M is a size of the allocation. The digital image is divided into N number of tiles. Then, for tiles Ti, where i=1 to N: (A) the image data of tile Ti is decompressed into buffer B[((i% 2)=0], and (B) the image data of buffer B[(i% 2)?0] is decompressed into the image path pipeline. Send a signal indicating that processing of the digital image has completed.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 27, 2018
    Assignee: Xerox Corporation
    Inventors: Louis B. La, Ryan David Metcalfe
  • Patent number: 9906687
    Abstract: A method, non-transitory computer readable medium and apparatus for starting a multiple scanline error diffusion method are disclosed. For example, the method includes identifying a pixel for each scanline of a plurality of scanlines, wherein the pixel that is identified in the each scanline of the plurality of scanlines is offset, setting all pixels behind the pixel for the each scanline of the plurality of scanlines that is identified with a white pixel value and starting the multiple scanline error diffusion method.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 27, 2018
    Assignee: Xerox Corporation
    Inventors: David Jon Metcalfe, Ryan David Metcalfe
  • Publication number: 20170264783
    Abstract: A method, non-transitory computer readable medium and apparatus for starting a multiple scanline error diffusion method are disclosed.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 14, 2017
    Inventors: David Jon Metcalfe, Ryan David Metcalfe
  • Publication number: 20170007858
    Abstract: A system for rendering safe a site above which an individual is operative at height which comprises at least one self-inflating fall arrest unit in a fully inflated state is arranged at a ground location on the site. At least one of the self-inflating fall arrest units in a fully inflated state is linked to at least one other fully inflated self-inflating fall arrest unit. Each of the self-inflating fall arrest units comprise at least one battery-powered fan. A method of rendering safe a site above which an individual is operative at height is also described.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 12, 2017
    Inventor: David Metcalf
  • Publication number: 20160203392
    Abstract: Techniques related to hybrid draft mode printing are discussed. Such techniques may include rendering sections of a print job document for printing based on different render settings to provide a print ready document having low print quality areas and high print quality areas. Printing such documents for review, for example, may provide consumables savings, review improvement, and review cycle time reduction.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 14, 2016
    Inventors: David Metcalfe, Ryan Metcalfe
  • Patent number: 9357101
    Abstract: An image processor determines the number of pixels to be added/removed within each row/column of pixels of an image to accomplish a given image enlargement/reduction. The image processor evenly distributes pixels that are to be added/removed along the full length of each of the rows or columns of pixels, and adds/removes pixels in a process that identifies a set of original pixels that are immediately adjacent to the pixel to be added/removed. The image processor then replaces each of the sets of the original pixels with a replacement set (that has one more/less pixel relative to the set of original pixels). Also, for each pixel that will be added/removed, the image processor determines data values for replacement pixels in each of the replacement sets by weighting data values from original pixels in the sets of original pixels. The image processor outputs an enlarged/reduced size version of the input image.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: May 31, 2016
    Assignee: Xerox Corporation
    Inventors: David Jon Metcalfe, Ryan David Metcalfe
  • Patent number: 9262704
    Abstract: Methods and systems render higher bit per pixel contone images to lower bit formats using multiple registers of a SIMD processor. The rendering process uses a first register to maintain contone image values of all the pixels being simultaneously processed. A second register maintains a threshold value used during the conversion process. A third register maintains one value for the print ready format pixels (e.g., those having less bits per pixel), and a fourth register maintains the other value (e.g., 0) for the print ready format pixels. Also, a fifth register maintains the conversion error amount for all the pixels being simultaneously processed. Sixth through ninth registers maintain distributed conversion error amounts produced by the diffusing process (for different pixels being simultaneously processed); and a tenth register maintains the pixels in the print-ready format produced by the conversion for all the pixels being simultaneously processed.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 16, 2016
    Assignee: Xerox Corporation
    Inventors: David Jon Metcalfe, Ryan David Metcalfe
  • Patent number: 9119050
    Abstract: Methods, processes, systems, apparatus and devices for delivering two way multimodal serialized comic content media files that uses a multimedia storage and delivery system. The communications utilize multi-modal inputs and multi-modal outputs to generate and access serialized comic content media files over the World Wide Web and telephone mediums with wireless communication devices and desktop computers.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 25, 2015
    Inventor: David Metcalf
  • Publication number: 20150230552
    Abstract: A compression sock made from resilient elastic material for the prevention and treatment of foot and ankle injuries. The compression sock having at least two toe sleeves configured to receive one or more toes on the foot. At least one of the toe sleeves having a toe bridge along an upper surface of the toe sleeve and defining a looped opening underneath the toe bridge. A strap configured to pass through the looped opening under the toe bridge so as to be wrapped around the toe sleeve and held in place by the toe bridge. An ankle portion of the sock having a greater density of resilient elastic material than any other portion of the sock so as to provide proprioceptive support to the ankle.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 20, 2015
    Applicant: Met 1 Life Inc.
    Inventor: David Metcalf
  • Publication number: 20150068770
    Abstract: Downhole apparatus comprises a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally on the pipe. The chambers may be inflated to increase the diameter of the apparatus and engage and support a surrounding bore wall.
    Type: Application
    Filed: October 10, 2014
    Publication date: March 12, 2015
    Applicant: DARCY TECHNOLOGIES HOLDINGS LIMITED
    Inventor: Paul David Metcalfe
  • Publication number: 20140317998
    Abstract: Methods and systems for processing crude oil may include adding water to crude oil, for example, in a desalter, to produce hydrocarbon and brine and a rag layer emulsion, which may include hydrocarbon and brine and solids. The emulsion may be modified, including adding one or more of additional hydrocarbon and, a demulsifier, a reverse demulsifier, a coagulant, and a flocculant, for example, in a mixer. The modified emulsion may be directed through a dead-end filter assembly to remove solids.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Applicant: Pall Corporation
    Inventors: Allan David Metcalfe, Francois Levesque, Hanif M Lakhani
  • Patent number: 8842938
    Abstract: Methods and systems for performing resolution expansion with high quality edge enhancement capability utilizing an edge detector and a color estimator. An edge tag with respect to an input image can be detected via an edge detector and an edge detection approach. A resolution expansion can be separately applied to the edge tag and a binary output generated by other processing functions. Multiple output lines corresponding to the input image from the color estimator with different threshold array values for an edge pixel can be generated by a halftoning module. A binary domain resolution expansion can be applied for a non-edge pixel. A final output for each pixel can be selected from a resolution expanded result and/or from the result of the halftoning for the edge based on the edge tag with respect to that pixel.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: September 23, 2014
    Assignee: Xerox Corporation
    Inventors: Xing Li, David Metcalfe, Barbara Lynn Farrell
  • Patent number: 8746028
    Abstract: There is disclosed a tubing expansion device and a method of expanding tubing. In one embodiment, an expansion device (10) is disclosed which comprises at least one expansion member (14) adapted to expand a tubing (12) by inducing a hoop stress in the tubing (12), and at least one further expansion member (16) adapted to expand the tubing (12) by inducing a compressive yield of the tubing (12); and a method of expanding tubing (12) comprising the steps of expanding the tubing (12) at least in part by inducing a hoop stress in the tubing (12), and expanding the tubing (12) at least in part by inducing a compressive yield of the tubing (12).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: June 10, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Andrew Michael Duggan, Graeme Thomas Marr, Paul David Metcalfe, Mark Davies, Neil Andrew Abercrombie Simpson, Wayne Rudd
  • Publication number: 20140102720
    Abstract: Downhole apparatus comprises a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally on the pipe. The chambers may be inflated to increase the diameter of the apparatus and engage and support a surrounding bore wall.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Inventor: Paul David Metcalfe
  • Publication number: 20140002459
    Abstract: Methods and systems for performing resolution expansion with high quality edge enhancement capability utilizing an edge detector and a color estimator. An edge tag with respect to an input image can be detected via an edge detector and an edge detection approach. A resolution expansion can be separately applied to the edge tag and a binary output generated by other processing functions. Multiple output lines corresponding to the input image from the color estimator with different threshold array values for an edge pixel can be generated by a halftoning module. A binary domain resolution expansion can be applied for a non-edge pixel. A final output for each pixel can be selected from a resolution expanded result and/or from the result of the halftoning for the edge based on the edge tag with respect to that pixel.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: Xerox Corporation
    Inventors: Xing Li, David Metcalfe, Barbara Lynn Farrell
  • Publication number: 20130269955
    Abstract: Downhole apparatus comprises a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally on the pipe. The chambers may be inflated to increase the diameter of the apparatus and engage and support a surrounding bore wall.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventor: Paul David Metcalfe
  • Patent number: 8555985
    Abstract: Downhole apparatus for location in a bore which intersects a fluid-producing formation comprises a bore wall-supporting member configurable to provide and maintain a bore wall supporting force for a fluid-producing formation of at least 2 MPa, whereby fluid may flow from the formation into the bore. The bore wall supporting force may be utilized to modify or maintain the permeability of the rock adjacent the bore wall.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: October 15, 2013
    Inventor: Paul David Metcalfe
  • Patent number: 8479810
    Abstract: Downhole apparatus comprises a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally on the pipe. The chambers may be inflated to increase the diameter of the apparatus and engage and support a surrounding bore wall.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: July 9, 2013
    Inventor: Paul David Metcalfe
  • Patent number: 8482801
    Abstract: A method and system for processing image data in an image processing device for a plurality of pixel positions within a plurality of scanlines. The method and system includes storing a starting stamp value and a plurality of delta stamp values for the scanline. The stored values being used to generate a pixel stamp value for an input pixel in the scanline, by adding a starting value or previous pixel stamp value and the stored delta stamp value for the input pixel. Further includes receiving an input pixel intensity value for the input pixel and determining an output pixel intensity value. Subsequently, if the output pixel intensity value for the input pixel is equal to a value for a dot or hole the delta stamp values for at least one pixel having a location previous or subsequent to the input pixel can be updated.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: July 9, 2013
    Assignee: Xerox Corporation
    Inventors: David Allen Mantell, John Adam Handwork, David Metcalfe