Article removal control system
First Claim
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1. A responder assembly comprising:
- a plurality of sensors,means for creating an electromagnetic field within a zone of sensitivity associated with each said sensor, said field being adapted to energize one or more sensitized markers located within said zones which thereby transpond energy for detection by one or more of said sensors, andprocessing means connected to each said sensor for providing a detection pattern corresponding to detection of responded energy from one or more of said sensors, said pattern being processed to determine whether none, one, or more than one of said markers is present within said zones.
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Abstract
A responder assembly for an article inventory control system employs a plurality of sensors for detection of sensitized markers attached to inventory items. By processing signals from each of the plurality of sensors, a detection pattern is provided to determine whether none, one, or more than one marker is present within a zone of sensitivity.
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Citations
28 Claims
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1. A responder assembly comprising:
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a plurality of sensors, means for creating an electromagnetic field within a zone of sensitivity associated with each said sensor, said field being adapted to energize one or more sensitized markers located within said zones which thereby transpond energy for detection by one or more of said sensors, and processing means connected to each said sensor for providing a detection pattern corresponding to detection of responded energy from one or more of said sensors, said pattern being processed to determine whether none, one, or more than one of said markers is present within said zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification