Patents by Inventor David L. Schuyler

David L. Schuyler 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: 4455452
    Abstract: A touch activated control unit and system provides control information representative of, and in response to, movement of a person's finger along each of two axes defined on the unit. The control system includes a touch pad as part of the control unit. Elements of the touch pad define a plurality of axes and are responsive to the proximate presence of a person's finger to provide an input in response to touching and representative of the location of the finger on each of the two axes. In this manner a touch activated controller for generating X-Y output information includes touchable traces carried on a common side of a PC board and extending in mutually normal directions. A speed scaling circuit provides improved resolution.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: June 19, 1984
    Assignee: Touch Activated Switch Arrays, Inc.
    Inventor: David L. Schuyler