Patents by Inventor Douglas L. Trotman

Douglas L. Trotman 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).

  • Keyboard arrangement for easy acquisition of typing skills
    Patent number: 6932525
    Abstract: A keyboard arrangement that assigns alphanumeric and special character symbols to keys based upon the shapes of the symbols in order to facilitate learning to type. Attribute classes are defined according to the number, position, direction, or contours of the line segments that comprise the symbols. As an aid to memorization of a keyboard arrangement, symbols are assigned to keys such that a substantial number of keys in a column of keys belong to the same attribute class. To convert any prior art or other kind of electronic keyboard to a keyboard arrangement within the scope of the invention, hardware and/or software components are provided that reassign the keys so that substantially all keys within the same column will correspond to symbols within the same attribute class.
    Type: Grant
    Filed: August 16, 2003
    Date of Patent: August 23, 2005
    Inventor: Douglas L. Trotman
  • Keyboard arrangement for easy acquisition of typing skills
    Publication number: 20040086315
    Abstract: A keyboard arrangement that assigns alphanumeric and special character symbols to keys based upon the shapes of the symbols in order to facilitate learning to type. Attribute classes are defined according to the number, position, direction, or contours of the line segments that comprise the symbols. As an aid to memorization of a keyboard arrangement, symbols are assigned to keys such that a substantial number of keys in a column of keys belong to the same attribute class. To convert any prior art or other kind of electronic keyboard to a keyboard arrangement within the scope of the invention, hardware and/or software components are provided that reassign the keys so that substantially all keys within the same column will correspond to symbols within the same attribute class.
    Type: Application
    Filed: August 16, 2003
    Publication date: May 6, 2004
    Inventor: Douglas L. Trotman
  • Keyboard arrangement for easy acquisition of typing skills
    Publication number: 20030143009
    Abstract: A keyboard arrangement that assigns alphanumeric and special character symbols to keys based upon the shapes of the symbols in order to facilitate learning to type. Attribute classes are defined according to the number, position, direction, or contours of the line segments that comprise the symbols. As an aid to memorization of a keyboard arrangement, symbols are assigned to keys such that a substantial number of keys in a column of keys belong to the same attribute class. To convert any prior art or other kind of electronic keyboard to a keyboard arrangement within the scope of the invention, hardware and/or software components are provided that reassign the keys so that substantially all keys within the same column will correspond to symbols within the same attribute class.
    Type: Application
    Filed: December 19, 2001
    Publication date: July 31, 2003
    Inventor: Douglas L. Trotman