Honeywell International Inc.

Honeywell G.m.b.h.

Greg R Furlong

Curtis B Johnson

Wayne A Lamb

Lamar Floyd Ricks

Jason Chilcote

Joel D Stolfus

Fred Hintz

Peter G Hancock

Robert E Bicking

Perry A Holman

Scott L Bunyer

Joseph K Murdock

Lamap F Ricks

Ed L Stern

Fred W Hintz

A door position sensing system includes a door claw having first and second magnets mounted thereon, and a Hall sensor mounted so as to sense the magnetic fields of the first and second magnets. The first magnet is mounted in a door half-latch position, and the second magnet is mounted in a door full-latch position. A processor is responsive to the Hall sensor to provide outputs indicating the half-latch and full-latch positions of a door. The processor may also be arranged to indicate a door open position when neither magnet is near the sensor.

Multiple output magnetic sensor

Methods and systems for detecting a rotating target are disclosed herein, wherein a biasing magnet is associated with a rotating target in association with a dual peak detector. The rotating target generally comprises a plurality of teeth and at least one slot formed between at least one tooth of the rotating target. In general, the biasing magnet and the rotating target generate a magnetic signal having positive and negative peaks thereof. The dual peak detector includes a tooth detector and a slot detector, such that the dual peak detector detects a minimum and maximum peak of the magnetic signal generated by the biasing magnet and the rotating target. Additionally, a clamping circuit can be associated with the dual peak detector, wherein the clamping circuit can provide a true power on (TPO) functionality.

Adaptive geartooth sensor with dual peak detectors and true power on capability

Magnetic-effect sensing apparatus with signal thresholding

An interleaved parallel MR bridge array is optimized for sensing fine pitch ring magnets and can be utilized to reduce ring magnet target size for wheel speed sensing applications.

Magnetoresistive bridge array

Growing community of inventors

Freeport, IL, United States of America

Greg R Furlong