SYSTEM AND METHOD FOR IMPROVING RFID TAG READING PERFORMANCE
First Claim
1. A system for improving the reading range of an RFID tag comprising:
- means for estimating an optimal position with respect to elements naturally present in the environment of intended use of the RFID tag; and
means for placing the tag at or near the optimal position
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Accused Products
Abstract
A system and a method for improving the reading range of RFID tags and detecting objects without placing RFID tags on them, through placement of the tags in optimal positions with respect to other elements responsive to electromagnetic waves that are naturally present in the environment of use of the RFID tags. RFID tags are placed in optimal positions with respect to metal surfaces on an object to be detected to enhance their readability based on reflective contributions of the RFID signal from the metal surfaces. Detection of objects possessing metal surfaces without RFID tags placed on them are achieved by placing an RFID tag behind a reader in a reader assembly and relying on the RF energy reflected from the metal surface of the object.
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Citations
14 Claims
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1. A system for improving the reading range of an RFID tag comprising:
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means for estimating an optimal position with respect to elements naturally present in the environment of intended use of the RFID tag; and means for placing the tag at or near the optimal position - View Dependent Claims (2, 3, 4)
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5. A method for improving the reading range of an RFID tag comprising:
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means for estimating an optimal position with respect to elements naturally present in the environment of intended use of the RFID tag; and means for placing the tag at or near the optimal position - View Dependent Claims (6, 7, 8)
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9. A system for detecting presence of objects comprising,
means for placing and RFID tag and an RFID reader in a detector assembly; -
means for identifying the RFID tag in the assembly using the reader within the same assembly, means for inferring presence of another object in the vicinity using said identification of said RFID tag - View Dependent Claims (10, 11)
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12. A method for detecting presence of objects comprising,
means for placing and RFID tag and an RFID reader in a detector assembly; -
means for identifying the RFID tag in the assembly using the reader within the same assembly, means for inferring presence of another object in the vicinity using said identification of the said RFID tag - View Dependent Claims (13, 14)
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Specification