Patents by Inventor David W. Lucas

David W. Lucas 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).

  • Interface for a presentation system
    Publication number: 20040014013
    Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.
    Type: Application
    Filed: November 1, 2002
    Publication date: January 22, 2004
    Applicant: Telecommunications Research Associates
    Inventors: Michael E. Diesel, Peter J. Isermann, Richard T. Beck, Shane W. Hill, Jeffrey L. Knight, Dennis C. Chang, David W. Lucas
  • System for accelerating delivery of electronic presentations
    Publication number: 20040010629
    Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.
    Type: Application
    Filed: November 1, 2002
    Publication date: January 15, 2004
    Applicant: Telecommunications Research Associates
    Inventors: Michael E. Diesel, Peter J. Isermann, Richard T. Beck, Shane W. Hill, Jeffrey L. Knight, Dennis C. Chang, David W. Lucas
  • Computerized learning system
    Publication number: 20030211447
    Abstract: A computerized learning system implements an electronic learning environment over a communications network. A client system can access an interactive presentation from a server. A delivery system can be used to deliver the interactive presentation from the server viewable by a user for a smooth presentation.
    Type: Application
    Filed: November 1, 2002
    Publication date: November 13, 2003
    Applicant: Telecommunications Research Associates
    Inventors: Michael E. Diesel, Peter J. Isermann, Richard T. Beck, Shane W. Hill, Jeffrey L. Knight, Dennis C. Chang, David W. Lucas
  • Method and structure for use in designing and building electronic systems in integrated circuits
    Patent number: 4613940
    Abstract: A method of designing an integrated circuit layout based on primitive elements such as transistors, resistors, and conductors and cell structures formed from the primitive functional element. The primitive elements are defined by surface dimensions, semiconductor construction, and surface layers and can be placed to accommodate special cell structures and functions. Design time can be minimized by using preexisting cell structures stored in suitable computer means, or layout surface and production costs can be minimized by designing new cell structures using a simple technique. Process independence can be achieved by having a complete design based on a small number of primitive elements which can be readily modified.
    Type: Grant
    Filed: November 9, 1982
    Date of Patent: September 23, 1986
    Assignee: International Microelectronic Products
    Inventors: Graham Shenton, Ioan G. Jones, David W. Lucas, Ronald E. Barton