Patents by Inventor Albert W. Lee

Albert W. Lee 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: 4968255
    Abstract: An electronic instructional apparatus is provided wherein the operator engages in exercises in spelling, arithmetic and associational exercises by responding, in part, to audible prompts provided by the apparatus in the form of requests and/or questions to which the operator must respond. The requests and/or questions are based upon digital data stored within the memory representative of numbers, letters of the alphabet, colors and physical objects, such as commonly recognized animals. The operator responds to the requests and/or questions by inserting answer blocks into input cavities provided in the apparatus housing. Each answer block has disposed thereon a plurality of display faces bearing indicia representative of potential responses to the presented statements and/or questions. Each display face has corresponding input surfaces which cooperate with detection elements to input into said apparatus the response selected by the operator.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: November 6, 1990
    Assignee: Video Technology Industries, Inc.
    Inventors: Albert W. Lee, Wai-Kwok Chew, David T. Cheung