Patents by Inventor H. Wayne Oldstead

H. Wayne Oldstead 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).

  • Simplified user interface and control system for a multimeter
    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