Interrogator and interrogation system employing the same
First Claim
1. An interrogation system, comprising:
- a first interrogator configured to detect a first object with a first interrogation signal at a first time and a second interrogator configured to detect a second object with a second interrogation signal at a second time, said second time being different than said first time, and said first interrogator being positioned at a first station in a facility and said second interrogator being a mobile interrogator; and
a base command unit configured to receive signals from said first interrogator and said second interrogator to determine a location of said first object and said second object.
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Accused Products
Abstract
An interrogator, methods of discerning the presence of an object, and interrogation systems employing the same. In one embodiment, the interrogation systems include multiple interrogators that communicate with a base command unit to track a location of an object. In another embodiment wherein the object is an RFID object (e.g., an object with an RFID tag), the interrogators employ signal processing techniques such as precharging the RFID object, and correlating a reference code with a reply code from the RFID object using selected techniques to increase a sensitivity of the interrogator, especially for adverse environments. In other embodiments, the interrogation systems include variations of metal instruments and sponges employed therewith. In yet another embodiment, the interrogation system includes metal interrogators capable of discerning the presence of a metal object, especially in a presence of another metal object.
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Citations
24 Claims
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1. An interrogation system, comprising:
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a first interrogator configured to detect a first object with a first interrogation signal at a first time and a second interrogator configured to detect a second object with a second interrogation signal at a second time, said second time being different than said first time, and said first interrogator being positioned at a first station in a facility and said second interrogator being a mobile interrogator; and a base command unit configured to receive signals from said first interrogator and said second interrogator to determine a location of said first object and said second object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of operating an interrogation system, comprising:
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detecting a first object with a first interrogator with a first interrogation signal at a first time, said first interrogator being positioned at a first station in a facility; detecting a second object with a second interrogator with a second interrogation signal at a second time, said second time being different than said first time, and said second interrogator being a mobile interrogator; receiving signals from said first interrogator and said second interrogator at a base command unit; and determining a location of said first object and said second object with said base command unit. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification