Patents by Inventor James W. Walker

James W. Walker 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: 20140026124
    Abstract: This invention relates to updating an operating system in a hypervisor comprising: determining a new version of a component of the operating system; installing the new component version; measuring an identifying characteristic of the component and making it available to an attestation system; notifying the attestation system that a component has been updated to a new version whereby, when the attestation system finds that the identifying characteristic of the new component does not match a pre-stored attestation value it is aware that a legitimate mis-match could have occurred. The installing of the new version of the component comprises: identifying an updater associated with new version of the component; measuring an identifying characteristic of the identified updater; loading and installing the new version of the component; and making both the identifying measurement of the updater and the new version of the component available to the attestation system.
    Type: Application
    Filed: January 10, 2012
    Publication date: January 23, 2014
    Applicant: International Business Machines Corporation
    Inventors: David A. Gilbert, David Haikney, James W. Walker
  • Publication number: 20140013327
    Abstract: A method, system and program product for performing a trusted boot of a virtual machine comprises the steps of executing, in turn, a series of components of the trusted boot, performing a function on each component prior to the execution of the respective component, storing the output of the functions in a virtual trusted platform module, detecting that the virtual trusted platform module has not responded to the storing of the output of a function in the virtual trusted platform module, and generating a request that the virtual trusted platform module be disabled.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Inventors: David Sherwood, James W. Walker, Travis Walton
  • Publication number: 20130080756
    Abstract: A method for attesting a component of a system during a boot process. The method comprises the steps of: verifying that the system is in a trusted state; in response to verifying that the system is in a trusted state, requesting an enrollment of the system wherein the requesting step further comprises the step of: retrieving enrollment data associated with the system; retrieving current input data associated with the component of the system; comparing the current input data against the enrollment data in order to determine whether the system can retain its trusted state; wherein in response to the comparing step, if the current input data matches the enrollment data, the system retains its trusted state; and accepting the trusted state until receipt of a notification, from the system having a retained trusted state, of an update to the system.
    Type: Application
    Filed: April 28, 2012
    Publication date: March 28, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David N. MacKintosh, Jose J.P. Perez, James W. Walker
  • Patent number: 8286144
    Abstract: A technique is provided for administering references to a subject process filesystem during translation of subject code into target code in a dynamic binary translator. The subject code for execution on a subject processor is received by a translator, and corresponding target code for execution on the target processor is generated. The translator is arranged to establish, populate and maintain a process data structure, so that code can be generated by the translator in which subject references to the subject process filesystem are handled effectively.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: October 9, 2012
    Assignee: International Business Machines Corporation
    Inventors: James W. Walker, Ryan J. Cocks
  • Publication number: 20120084549
    Abstract: A method, apparatus and program product for attesting a component of a system during a boot process. The method comprises the steps of: verifying that the system is in a trusted state; in response to verifying that the system is in a trusted state, requesting an enrollment of the system wherein the requesting step further comprises the step of: retrieving enrollment data associated with the system; retrieving current input data associated with the component of the system; comparing the current input data against the enrollment data in order to determine whether the system can retain its trusted state; wherein in response to the comparing step, if the current input data matches the enrollment data, the system retains its trusted state; and accepting the trusted state until receipt of a notification, from the system having a retained trusted state, of an update to the system.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David N. Mackintosh, Jose J.P. Perez, James W. Walker
  • Patent number: 7424403
    Abstract: A low power vibration sensor and wireless transmitter system has one or more sensors that sense parameters of a machine including vibration and produces dynamic signals representing the sensed parameters. The system converts the signals to a digital format, digitally filters the signals, and processes the signals. A processor determines a plurality of levels, which represent the characteristics of the signal such as the peak value of a predetermined set of data points of the digital signal. Together, the levels comprise a PeakVue waveform. The processor determines the peak level value for the PeakVue waveform. Also, a true root-mean-square is calculated as the signal is received at the processor. The peak level and the RMS value are communicated wirelessly by a communication module to a control protocol network such as a daisy chain HART or Fieldbus protocol network. The system power supply and the communication module power supply are separate and allow for low power operation.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: September 9, 2008
    Assignee: CSI Technology, Inc.
    Inventors: James C. Robinson, Joseph C. Baldwin, James W. Walker, William E. Childress
  • Patent number: 7378270
    Abstract: A biochemical analysis instrument for multiple fluid analyses includes a housing. A sensor for sensing a reaction is disposed in the housing. An aperture is formed in the housing. A test tape housing area is formed in the housing, and the sensor is disposed to selectively move within the housing area; the aperture being formed to provide access to the tape housing area. A cassette is configured to be received within the tape housing area. The cassette includes a case. First and second chambers are formed in the case. A gap is formed in the case. The first chamber and second chamber are disposed at a respective side of the gap. A test tape disposed within the housing extends from the first chamber across the gap to the second chamber. The test tape includes a plurality of active zones disposed at predetermined spaced intervals along the tape for testing an analyte.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: May 27, 2008
    Assignee: Sentec Scientific, Inc.
    Inventors: Roobik Azarnia, James W. Walker
  • Publication number: 20080082296
    Abstract: A low power vibration sensor and wireless transmitter system has one or more sensors that sense parameters of a machine including vibration and produces dynamic signals representing the sensed parameters. The system converts the signals to a digital format, digitally filters the signals, and processes the signals. A processor determines a plurality of levels, which represent the characteristics of the signal such as the peak value of a predetermined set of data points of the digital signal. Together, the levels comprise a PeakVue waveform. The processor determines the peak level value for the PeakVue waveform. Also, a true root-mean-square is calculated as the signal is received at the processor. The peak level and the RMS value are communicated wirelessly by a communication module to a control protocol network such as a daisy chain HART or Fieldbus protocol network. The system power supply and the communication module power supply are separate and allow for low power operation.
    Type: Application
    Filed: January 26, 2007
    Publication date: April 3, 2008
    Inventors: James C. Robinson, Joseph C. Baldwin, James W. Walker, William E. Childress
  • Patent number: 4930806
    Abstract: The disclosed suspension system utilizes a balanced spring arrangement wherein each of one or more wheel is independently journalled on a fore-and-aft beam disposed alongside a fore-and-aft frame. The wheel journal or axle is at one end of the beam and the beam is pivoted intermediate its ends to the frame on a transverse axis. Adjacent the wheel a spring acting between the beam and frame opposed upward movement of the beam and wheel, and a spring at the other end of the beam acts on the frame to oppose downward movement of that end of the beam, the two springs thus acting in unison.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: June 5, 1990
    Inventor: James W. Walker, Jr.
  • Patent number: 4884172
    Abstract: An automotive safety device for reflecting light from a front headlight rearwardly along the sides of the vehicle is in the form of a detachable plastic reflective strip which has one end attached to the center of the headlight and offset therefrom and the other end wrapped around the side of the automobile and attached to a side panel. By adjustment of suction cups front and rear wheels can effectively be illuminated along with other portions of the side of the automobile. Auxiliary safety uses of the reflective strip are also possible. Because it is of thin, flexible material, it can be easily stored away.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: November 28, 1989
    Inventor: James W. Walker
  • Patent number: 4534465
    Abstract: A stackable cassette or rack for supporting a plurality of sealed sample containers having different diameters and/or lengths and transporting the same to a testing station of a hematology analyzer device. The cassette comprises a body having a top and a bottom and a rear portion, and the body includes a base, front and intermediate walls and a biasing means, connected between the front and intermediate walls, both walls longitudinally extend across the base and each wall has a plurality of equidistantly spaced openings therein arranged in a row lengthwise of the cassette which openings extend from the base to the top of the body. Each of the openings in the front wall has an upper edge and the spaced apart holes of both walls are in alignment.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: August 13, 1985
    Assignee: Coulter Electronics, Inc.
    Inventors: William F. Rothermel, John P. Matthews, James W. Walker, Wallace H. Coulter