Patents by Inventor Dave Eugene Merritt

Dave Eugene Merritt 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).

  • Large gap door/window, high security, intrusion detectors using magnetometers
    Patent number: 8970373
    Abstract: A door, or window detector incorporates a magnet and a magnetometer. Dual loop processing can be provided for real-time signals from the magnetometer, as the magnet moves relative to it, to determine when at least one of small gap or large gap indicating alarms should be issued. Security can be substantially increased by randomizing the orientation of the magnet.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: March 3, 2015
    Assignee: Honeywell International Inc.
    Inventors: Mark C. Buckley, Dave Eugene Merritt
  • Large Gap Door/Window, High Security, Intrusion Detectors Using Magnetometers
    Publication number: 20130265162
    Abstract: A door, or window detector incorporates a magnet and a magnetometer. Dual loop processing can be provided for real-time signals from the magnetometer, as the magnet moves relative to it, to determine when at least one of small gap or large gap indicating alarms should be issued. Security can be substantially increased by randomizing the orientation of the magnet.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 10, 2013
    Applicant: Honeywell International Inc.
    Inventors: Mark C. BUCKLEY, Dave Eugene MERRITT
  • Adaptive microwave security sensor
    Patent number: 8004451
    Abstract: A method and apparatus are provided for operating a microwave detector for detecting intruders within a secured area. The method includes the steps of selecting a noise floor based upon a setting of a range setting potentiometer, detecting a magnitude of a signal reflected from a test subject within the secured area that exceeds the selected noise floor and establishing a threshold value for detecting an intruder based upon the magnitude of the detected signal and sensor mounting height.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 23, 2011
    Assignee: Honeywell International Inc.
    Inventors: XiaoDong Wu, Roy Phi, Dave Eugene Merritt
  • ADAPTIVE MICROWAVE SECURITY SENSOR
    Publication number: 20100302090
    Abstract: A method and apparatus are provided for operating a microwave detector for detecting intruders within a secured area. The method includes the steps of selecting a noise floor based upon a setting of a range setting potentiometer, detecting a magnitude of a signal reflected from a test subject within the secured area that exceeds the selected noise floor and establishing a threshold value for detecting an intruder based upon the magnitude of the detected signal and sensor mounting height.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: Honeywell International Inc.
    Inventors: XiaoDong Wu, Roy Phi, Dave Eugene Merritt