Patents by Inventor Helen E. N. Armstrong

Helen E. N. Armstrong 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).

  • Water tolerant touch sensor
    Patent number: 7116315
    Abstract: A method, computer readable medium, and touch sensor system for reducing the effects of contaminants on an acoustic touch sensor. Acoustic energy is transmitted across the touch sensor substrate. Any perturbations in the acoustic energy induced by environmental events, such as valid touches or contaminants, are sensed and analyzed. If the perturbation exhibits a monotonic growth over a time period, it is considered to be a valid touch. If the perturbation exhibits a non-monotonic growth over the time period, it is considered a contaminant.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: October 3, 2006
    Assignee: Tyco Electronics Corporation
    Inventors: Jeffrey L. Sharp, Chris Dews, Helen E. N. Armstrong, Don Armstrong
  • Water tolerant touch sensor
    Publication number: 20040178998
    Abstract: A method, computer readable medium, and touch sensor system for reducing the effects of contaminants on an acoustic touch sensor. Acoustic energy is transmitted across the touch sensor substrate. Any perturbations in the acoustic energy induced by environmental events, such as valid touches or contaminants, are sensed and analyzed. If the perturbation exhibits a monotonic growth over a time period, it is considered to be a valid touch. If the perturbation exhibits a non-monotonic growth over the time period, it is considered a contaminant.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Inventors: Jeffrey L. Sharp, Chris Dews, Don Armstrong, Helen E. N. Armstrong