Inclusive or Exclusive RFID Tag Interrogation and Query Round
First Claim
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1. A method for interrogating a plurality of RFID tags having a diverse set of characteristics, the method comprising:
- creating a query command that identifies a first set of RFID tag characteristics within the diverse set of characteristics;
inserting a bit within the query command that identifies a type of tag interrogation to be performed;
transmitting the query command to the plurality of RFID tags;
selecting a first set of RFID tags based at least in part on the first set of RFID tag characteristics and the type of tag interrogation; and
interrogating the first set of RFID tags.
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Abstract
Embodiments of the present invention allow for dynamic selection and query of different types of RFID tags into a session. Embodiments of the present invention also allow for dynamic activation of different types of RFID tags. In certain embodiments of the invention, an inclusive operation is performed on the RFID tags and in other embodiments an exclusive operation is performed.
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Citations
31 Claims
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1. A method for interrogating a plurality of RFID tags having a diverse set of characteristics, the method comprising:
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creating a query command that identifies a first set of RFID tag characteristics within the diverse set of characteristics; inserting a bit within the query command that identifies a type of tag interrogation to be performed; transmitting the query command to the plurality of RFID tags; selecting a first set of RFID tags based at least in part on the first set of RFID tag characteristics and the type of tag interrogation; and interrogating the first set of RFID tags. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An RFID system comprising:
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a plurality of a RFID tags that have a diverse set of characteristics; a reader that queries the plurality of RFID tags and takes a first set of RFID tags, within the plurality of RFID tags, into a query round based at least in part on a first set of RFID tag characteristics and a type of tag interrogation; and wherein the query of the plurality of the RFID tags comprises the reader transmitting a command having an flag that defines a relationship of the first set of RFID tag characteristics as being inclusive or exclusive. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An RFID tag comprising:
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an antenna coupled to receive an interrogation command from an RFID reader; and a processor, coupled to receive the interrogation command, the processor processes a set of RFID tag characteristics, the set of RFID tag characteristics being embedded within a query command transmitted by a reader that queries the RFID tag and takes the RFID tag into a query round based at least in part on the set of RFID tag characteristics; and wherein the query of the RFID tag comprises the reader transmitting a command having a flag that defines a relationship of the first set of RFID tag characteristics as being inclusive or exclusive. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A method for activating a first set of RFID tags within a plurality of RFID tags having a diverse set of characteristics, the method comprising:
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creating an activation command that identifies a first set of RFID tag characteristics within the diverse set of characteristics; inserting a bit within the activation command that identifies a type of tag activation to be performed based on the RFID tag characteristics being inclusive or exclusive; transmitting the activation command to the plurality of RFID tags; and activating the first set of RFID tags based at least in part on the first set of RFID tag characteristics and the bit defining inclusive or exclusive. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification