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US 2009/0153346 A1Published application
Passenger screening system and method
OwnerChristopher W. Crowley, Richard Shelby +2inventors
InventorsChristopher W. Crowley, Richard Shelby, Oscar Mitchell, Richard Keith Ostrom
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Abstract
A method and scanner configured to determine whether a person's feet are positioned at a predetermined location of a predetermined scanning area and configured to scan the feet to detect a presence of a metal, an explosive, or other type of target substance.
Claims32
A method, comprising:
- sensing when a person's feet are placed within a predetermined screening area of a scanner;
- and
- verifying that the feet are at respective predetermined locations within the predetermined screening area.
A scanner, comprising:
- a metal detector having two metal detection coils that are spaced apart relative to each other;
- an inductive sensor configured to detect a target substance;
- a position sensor configured to sense when a person's feet are placed within a predetermined screening area of the scanner;
- and
- a computer coupled with the metal detector, the inductive sensor, and the position sensor, the computer configured to:
- operate the metal detector to scan the feet for a presence of metal;
- operate the inductive sensor to scan the feet for a presence of the target substance;
- and
- operate the position sensor to verify that the feet are positioned at respective predetermined locations within the predetermined screening area.
6 more elements
The scanner of claim 22, wherein the target substance is an explosive.
Dependencies are inferred from the claim text.