Patents by Inventor Robert C. Addison

Robert C. Addison 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).

  • Touch screen using echo-location
    Patent number: 7079118
    Abstract: A plurality of acoustic wave transducers are coupled to a substrate at predetermined spaced apart locations. At least one of the transducers is operative to emit an acoustic wave that propagates along the substrate, with the other transducers operating as receivers of acoustic waves. The receivers are coupled to a control system that is operative to determine a location at which the substrate is perturbed based on time associated with travel of an acoustic wave from a transmitter, to the location of the perturbation, and from the perturbation to each of the respective receivers.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: July 18, 2006
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: David J. Benard, Robert C. Addison, Dong-Feng Gu
  • Touh screen using echo-location
    Publication number: 20040164970
    Abstract: A plurality of acoustic wave transducers are coupled to a substrate at predetermined spaced apart locations. At least one of the transducers is operative to emit an acoustic wave that propagates along the substrate, with the other transducers operating as receivers of acoustic waves. The receivers are coupled to a control system that is operative to determine a location at which the substrate is perturbed based on time associated with travel of an acoustic wave from a transmitter, to the location of the perturbation, and from the perturbation to each of the respective receivers.
    Type: Application
    Filed: February 23, 2004
    Publication date: August 26, 2004
    Inventors: David J. Benard, Robert C. Addison, Dong-Feng Gu
  • Touch screen
    Patent number: 6741237
    Abstract: A plurality of acoustic wave transducers are coupled to a substrate at predetermined spaced apart locations. At least one of the transducers is operative to emit an acoustic wave that propagates along the substrate, with the other transducers operating as receivers of acoustic waves. The receivers are coupled to a control system that is operative to determine a location at which the substrate is perturbed based on time associated with travel of an acoustic wave from a transmitter, to the location of the perturbation, and from the perturbation to each of the respective receivers.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: May 25, 2004
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: David J. Benard, Robert C. Addison, Dong-Feng Gu