Patents by Inventor Donna A. Mill

Donna A. Mill 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).

  • System and method for detecting detector masking
    Patent number: 7616109
    Abstract: A system and method is provided for indicating a masking event using transmission wiring delegated for indicating intrusion and tampering events. The method of indicating a masking event utilizes measurable changes in resistance to indicate the current masking state of a detector. When a detector is not masked, a first resistance value is measurable on the transmission wiring, while when a detector is masked, a second resistance value is measurable on the transmission wiring. The transmission wiring connects the detector to a control unit that executes a security-related response based on the value of the measured resistance.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: November 10, 2009
    Assignee: Honeywell International Inc.
    Inventors: Colin S. McCulloch, Donna A. Mill, William J. Brown