Honeywell International Inc.

Dave Eugene Merritt

Xiaodong Wu

Mark Clifford Buckley

Roy Phi

Mark C Buckley

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.

Large gap door/window, high security, intrusion detectors using magnetometers

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.

Growing community of inventors

Rocklin, CA, United States of America

Dave Eugene Merritt