Patents by Inventor Richard M. Stumpf

Richard M. Stumpf 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: 6118437
    Abstract: A digitizer eraser system and method are provided so as to include a writing/erasing digitizer pen, a tablet, and a tablet driver for use in conjunction with a computer and corresponding display screen. The user selects and deletes text or cells with one stylus stroke. In one motion, the user presses select, moves the erasing stylus across the material to be selected, then at the end of the selection lifts the stylus off the tablet to delete or erase the selected material. The system permits erasing of text or objects from the display screen via a keystroke function only when predetermined cursor shapes are being used on the screen. The keystroke function is chosen from a group of possible erasing keystrokes, with the selected keystroke being based upon the cursor shape being used so that undesirable erasing keystrokes are not used in certain situations. Additionally, the cursor shapes displayed on the screen are changed in accordance with whether the stylus is in a writing or an erasing mode or position.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: September 12, 2000
    Assignee: Wacom Co., Ltd.
    Inventors: David C. Fleck, Richard M. Stumpf, Tom Picard
  • Patent number: 5793360
    Abstract: A digitizer eraser system and method are provided so as to include a writing/erasing digitizer pen, a tablet, and a tablet driver for use in conjunction with a computer and corresponding display screen. The user selects and deletes text or cells with one stylus stroke. In one motion, the user presses select, moves the erasing stylus across the material to be selected, then at the end of the selection lifts the stylus off the tablet to delete or erase the selected material. The system permits erasing of text or objects from the display screen via a keystroke function only when predetermined cursor shapes are being used on the screen. The keystroke function is chosen from a group of possible erasing keystrokes, with the selected keystroke being based upon the cursor shape being used so that undesirable erasing keystrokes are not used in certain situations. Additionally, the cursor shapes displayed on the screen are changed in accordance with whether the stylus is in a writing or an erasing mode or position.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: August 11, 1998
    Assignee: Wacom Co., Ltd.
    Inventors: David C. Fleck, Richard M. Stumpf, Tom Picard