Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2011-04-19
2011-04-19
Whittington, Kenneth J (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S165000
Reexamination Certificate
active
07928724
ABSTRACT:
Systems and methods for determining a directional movement of an object such as a wheeled vehicle. The system includes a magnet having a north pole and a south pole mounted to the object, a single magnetic sensor positioned such that the sensor can individually detect each magnetic pole as the object moves, the sensor configured to produce a first characteristic signal when a north pole is detected and a second characteristic signal when a south pole is detected, and a processing device in signal communication with the sensor, the processing device configured to determine a directional movement of the object based on a configuration of a signal doublet that includes the first and second characteristic signals. The methods include sensing the north and south poles as they pass the magnetic sensor and determining a direction based on an order in which the north and south poles are sensed.
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Strollometer, http://www.strollometer.com/howitfits.html, The right fit, Feb. 7, 2008.
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Fang Ron
Graham Bruce
Judd Tom
Vu Toan
Fogg & Powers LLC
Honeywell International , Inc.
Whittington Kenneth J
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