Tag-to-tag communication using RFID readers
First Claim
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1. A method for a Radio Frequency Identification (RFID) reader to pass messages between RFID tags, the method comprising:
- receiving a first message including data from a first tag;
determining the data are intended for a second tag;
attempting to establish communications with the second tag;
in response to establishing communications with the second tag, transmitting a second message including at least a portion of the data to the second tag; and
in response to not establishing communications with the second tag, at least one of;
storing the data for subsequent transmission to the second tag;
storing an error indication; and
transmitting the error indication to the first tag.
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Abstract
Messages may be passed between Radio Frequency Identification (RFID) tags using RFID readers. A first tag with a message intended for a second tag sends the message to an RFID reader. The reader then determines that the destination of the message is the second tag and sends the message to the second tag. The second tag may confirm receipt of the message by sending a receipt confirmation message to the reader for forwarding to the first tag, and/or the reader may itself confirm that the message was sent to the second tag by sending a transmit confirmation message to the first tag.
15 Citations
14 Claims
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1. A method for a Radio Frequency Identification (RFID) reader to pass messages between RFID tags, the method comprising:
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receiving a first message including data from a first tag; determining the data are intended for a second tag; attempting to establish communications with the second tag; in response to establishing communications with the second tag, transmitting a second message including at least a portion of the data to the second tag; and in response to not establishing communications with the second tag, at least one of; storing the data for subsequent transmission to the second tag; storing an error indication; and transmitting the error indication to the first tag. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A Radio Frequency Identification (RFID) reader configured to pass messages between RFID tags, the reader comprising:
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a transceiver configured to transmit and receive signals from RFID tags; and a processor block coupled to the transceiver and configured to; receive a first message including data from a first tag; determine the data are intended for a second tag; attempt to establish communications with the second tag; in response to establishing communications with the second tag, transmit a second message including at least a portion of the data to the second tag. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification