Patents by Inventor Aaron T. Ferrucci

Aaron T. Ferrucci 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: 5943052
    Abstract: An apparatus for touchpad-based scroll control and method for scroll control comprising a data packet processor working in conjunction with a touchpad. A scroll zone, having a central axis, is defined on the touchpad. After detecting a user running a finger on the touchpad in a direction substantially parallel to an axis running the length of the scroll zone, the processor software sends scrolling messages to the operating system or application that owns an active window. The packet processing software is configured to not scroll on motions that are not substantially parallel to the axis of the scroll zone, thereby avoiding unwanted interference with normal program function, and also stops scrolling when the user lifts the scroll-activating finger or moves it in direction substantially perpendicular to the scroll zone.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: August 24, 1999
    Assignee: Synaptics, Incorporated
    Inventors: Timothy Allen, Shawn P. Day, Aaron T. Ferrucci
  • Patent number: 5889236
    Abstract: A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in both the X and Y directions of the matrix due to the approach of an object is converted to a set of voltages in the X and Y directions. These voltages are processed by circuitry to develop electrical signals representative of the centroid of the profile of the object, i.e, its position in the X and Y dimensions. Noise reduction and background level setting techniques inherently available in the architecture are employed.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: March 30, 1999
    Assignee: Synaptics Incorporated
    Inventors: David Gillespie, Timothy P. Allen, Aaron T. Ferrucci