Patents by Inventor Randall C. Johnson

Randall C. Johnson 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: 8102400
    Abstract: In a mobile device with a mobile device video driver that can be interdicted, such as a display telephone or PDA, a method and system for display on a remote video display device is provided involving forming an enhanced display image in an enhanced video frame buffer and reconstructing the display image in a duplicate enhanced video frame buffer in the remote video display device.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: January 24, 2012
    Assignee: Celio Corporation
    Inventors: Colin N.B. Cook, Donald T. Saxby, Randall C. Johnson
  • Patent number: 7709787
    Abstract: An apparatus and method for measuring low or trace concentrations of compounds and mixture of gases. A method and apparatus of the invention permits separating ions of different mobilities by passing them through an abrupt change or step in electric field magnitude. By using the separation method, the compounds of interest may be measured with less interference from other compounds of the gas mixture, which reduces or eliminates the need for prior separation of the components of the gas mixture. Several embodiments of the invention are described including the use of current amplifiers on one, or more, parts of the apparatus. While a single screen can provide a chamber which is divided into two regions of different electric fields, it is within the scope of the invention to include multiple screens to provide several steps in the electric field permitting it to be possible to trap and measure ions with successively higher mobilities.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: May 4, 2010
    Assignee: The United States of America as represented by the Secretary of the Department of Commerce
    Inventors: Roger G. Carter, Shane A. Beard, Debbie J. LaCroix, Randall C. Johnson
  • Publication number: 20090050799
    Abstract: An apparatus and method for measuring low or trace concentrations of compounds and mixture of gases. A method and apparatus of the invention permits separating ions of different mobilities by passing them through an abrupt change or step in electric field magnitude. By using the separation method, the compounds of interest may be measured with less interference from other compounds of the gas mixture, which reduces or eliminates the need for prior separation of the components of the gas mixture. Several embodiments of the invention are described including the use of current amplifiers on one, or more, parts of the apparatus. While a single screen can provide a chamber which is divided into two regions of different electric fields, it is within the scope of the invention to include multiple screens to provide several steps in the electric field permitting it to be possible to trap and measure ions with successively higher mobilities.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 26, 2009
    Inventors: Roger G. Carter, Shane A. Beard, Debbie J. Lacroix, Randall C. Johnson
  • Patent number: 5329886
    Abstract: This patent discloses a secondary fluid supply system for a steam generator used in nuclear reactor power plants. The secondary fluid supply system comprises a secondary fluid (feedwater) inlet nozzle near the base of the steam generator shell, a feedwater riser pipe spaced between the shell of the steam generator and the tube bundle wrapper, the upper end of the feedwater riser pipe being connected to a distribution ring having a plurality of spray nozzles positioned in the recirculating pool above the top of the U-shaped heat exchanger tubes.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: July 19, 1994
    Assignee: Westinghouse Electric Corporation
    Inventors: Robert L. Sylvester, Randall C. Johnson, Gregory V. Smith, King W. Chan, Willis B. Middlebrooks, III, Jawahar K. Visaria, Robert M. Wilson, George Bieberbach
  • Patent number: 4891751
    Abstract: A massively parallel vector computer comprises a set of vector processing nodes, each node including a main processor for controlling access to a random access memory through an internal bus and a set of ports for interfacing external busses to the internal bus. The external busses interconnect pairs of nodes to form a network through which data may be transmitted from the random access memory in any one node to the random access memory in any other node in the network. Each vector processing node also includes a vector memory accessed through a local bus, the local and internal busses communicating via an additional port controlled by the main processor. A vector processor within each node performs operations on vectors stored in the vector memory and stores the results in the vector memory. A peripheral processing network comprises a set of peripheral processing nodes interconnected via further busses, and wherein selected peripheral processing nodes are coupled to selected vector processing nodes.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: January 2, 1990
    Assignee: Floating Point Systems, Inc.
    Inventors: Duane B. Call, Alfred Mudrow, Randall C. Johnson, Robert F. Bennion