Patents by Inventor James L. Williamson

James L. Williamson 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: 11518349
    Abstract: An electronic control unit (ECU) is disclosed. The ECU may detect an emergency stopping event associated with a vehicle. The ECU may determine, based on detecting the emergency stopping event, that electro-hydraulic brakes of the vehicle are in a disabled mode. The ECU may determine, based on determining that the electro-hydraulic brakes are in the disabled mode, a position of a brake pedal of the vehicle. The ECU may override, based on the position of the brake pedal, the disabled mode to engage the electro-hydraulic brakes during the emergency stopping event.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: December 6, 2022
    Assignee: Caterpillar Inc.
    Inventors: James McKnight, James L. Williamson
  • Publication number: 20200384961
    Abstract: An electronic control unit (ECU) is disclosed. The ECU may detect an emergency stopping event associated with a vehicle. The ECU may determine, based on detecting the emergency stopping event, that electro-hydraulic brakes of the vehicle are in a disabled mode. The ECU may determine, based on determining that the electro-hydraulic brakes are in the disabled mode, a position of a brake pedal of the vehicle. The ECU may override, based on the position of the brake pedal, the disabled mode to engage the electro-hydraulic brakes during the emergency stopping event.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Applicant: Caterpillar Inc.
    Inventors: James McKNIGHT, James L. WILLIAMSON
  • Patent number: 6218824
    Abstract: A simplified user interface for an electronic test and measurement device comprises an arrangement of a segmented LCD device and a plurality of keys used to implement a softkey system, in combination with a single AMPs input connector and a rotary selector having only a single position for each basic kind of parameter to be measured. The segmented LCD device includes, at each location adjacent to a key, a plurality of segments representing a vertically-arranged list of functions to be controlled. In one embodiment of the invention, the housing of the electronic test and measurement device is fabricated to have finger-like projections overlaying a portion of the LCD screen for creating the appearance of the continuation of displayed LCD softkey separation lines.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: April 17, 2001
    Assignee: Tektronix, Inc.
    Inventors: H. Wayne Oldstead, Frank Goovaerts, Theodore G. Nelson, Michael R. Engbretson, J. Steve Lyford, Jerry L. Wrisley, Charles L. Saxe, James L. Williamson