Patents by Inventor Matthew R. Longnecker

Matthew R. Longnecker 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).

  • Graphics processor clock scaling based on idle time
    Patent number: 9773344
    Abstract: A method for graphics processor clock scaling comprises the following steps. A percentage of idle-time is calculated, based upon an elapsed idle-time and an elapsed active time. A graphics processor clock rate is reduced if the percentage of idle time is higher than a high limit threshold. The graphics processor clock rate is increased if the percentage of idle time is lower than a low limit threshold.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: September 26, 2017
    Assignee: Nvidia Corporation
    Inventors: Ilan Aelion, Terje Bergstrom, Matthew R. Longnecker
  • Power management techniques for USB interfaces
    Patent number: 9395799
    Abstract: Power management techniques for a Universal Serial Bus (USB) include determining an idle period on one or more USB ports by a main controller circuit of a USB host controller. The main controller circuit signals a suspend to a Power Management Controller (PMC) sub-circuit of the USB host controller, in response to the determined idle period. The PMC sub-circuit stores one or more operating parameters of the one or more USB ports in response to the suspend signal. The PMC sub-circuit also maintains the idle state on the one or more USB ports in response to the suspend signal. Thereafter, the main controller circuit is placed in a low energy state while the PMC sub-circuit maintains the idle state.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: July 19, 2016
    Assignee: NVIDIA CORPORATION
    Inventors: Eric L. Masson, Matthew R. Longnecker, Hemalkumar Chandrkant Doshi, Brian Smith
  • Adapting one type of encoder to another type of encoder
    Patent number: 8705630
    Abstract: Described are methods and systems for processing data. A motion estimator uses a block of an input frame of video data and a block of a reference frame of video data to generate motion vectors according to a first encoding scheme. A motion compensator produces half pel motion vectors from the motion vectors according to a second encoding scheme that is different from the first encoding scheme.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: April 22, 2014
    Assignee: NVIDIA Corporation
    Inventors: Derek Pappas, Atul Garg, Shankar Moni, Harikrishna M. Reddy, Matthew R. Longnecker, Christopher L. Mills, Ignatius B. Tjandrasuwita
  • POWER MANAGEMENT TECHNIQUES FOR USB INTERFACES
    Publication number: 20140047257
    Abstract: Power management techniques for a Universal Serial Bus (USB) include determining an idle period on one or more USB ports by a main controller circuit of a USB host controller. The main controller circuit signals a suspend to a Power Management Controller (PMC) sub-circuit of the USB host controller, in response to the determined idle period. The PMC sub-circuit stores one or more operating parameters of the one or more USB ports in response to the suspend signal. The PMC sub-circuit also maintains the idle state on the one or more USB ports in response to the suspend signal. Thereafter, the main controller circuit is placed in a low energy state while the PMC sub-circuit maintains the idle state.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 13, 2014
    Applicant: NVIDIA Corporation
    Inventors: Eric L. Masson, Matthew R. Longnecker, Hemalkumar Chandrakant Doshi, Brian Smith
  • Adapting one type of encoder to another type of encoder
    Publication number: 20070189390
    Abstract: Described are methods and systems for processing data. A motion estimator uses a block of an input frame of video data and a block of a reference frame of video data to generate motion vectors according to a first encoding scheme. A motion compensator produces half pel motion vectors from the motion vectors according to a second encoding scheme that is different from the first encoding scheme.
    Type: Application
    Filed: December 8, 2006
    Publication date: August 16, 2007
    Inventors: Derek Pappas, Atul Garg, Shankar Moni, Harikrishna M. Reddy, Matthew R. Longnecker, Christopher L. Mills, Ignatius B. Tjandrasuwita