RFID communication systems and methods, and RFID readers and systems
First Claim
Patent Images
1. A method comprising:
- a first RFID reader beginning an inventory session, the RFID reader setting a flag on respective RFID tags that have been inventoried by the first RFID reader;
storing information representing the tags that have been inventoried by the first RFID reader;
interrupting the first RFID reader'"'"'s inventory session;
resetting the flags on the tags that have been inventoried;
a second RFID reader beginning an inventory session, the second RFID reader setting a flag on respective RFID tags that have been inventoried;
storing information representing the tags that have been inventoried;
resetting the flags set by the second RFID reader; and
resuming the inventory session of the first RFID reader, the resuming including reflagging the tags for which information was stored representing the tags that were inventoried by the first RFID reader.
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Abstract
A method of coordinating a plurality of RFID readers includes controlling the RFID readers such that only one of the readers performs an inventory of RFID tags at a time. A system for coordinating a plurality of RFID readers is also provided.
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Citations
18 Claims
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1. A method comprising:
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a first RFID reader beginning an inventory session, the RFID reader setting a flag on respective RFID tags that have been inventoried by the first RFID reader; storing information representing the tags that have been inventoried by the first RFID reader; interrupting the first RFID reader'"'"'s inventory session; resetting the flags on the tags that have been inventoried; a second RFID reader beginning an inventory session, the second RFID reader setting a flag on respective RFID tags that have been inventoried; storing information representing the tags that have been inventoried; resetting the flags set by the second RFID reader; and resuming the inventory session of the first RFID reader, the resuming including reflagging the tags for which information was stored representing the tags that were inventoried by the first RFID reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a first RFID reader configured to conduct an inventory session, the first RFID reader being configured to set a flag on respective RFID tags that have been inventoried by the first RFID reader and to store information representing the tags that have been inventoried by the first RFID reader as they are being inventoried, the first RFID reader being capable of being selectively interrupted in its inventory session, the first RFID reader being configured to reset the flags on the tags that have been inventoried in response to being interrupted; and a second RFID reader configured to conduct an inventory session, the first RFID reader being configured to set a flag on respective RFID tags that have been inventoried by the second RFID reader and to store information representing the tags that have been inventoried by the second RFID reader as they are being inventoried, and being configured to reset the flags set by the second RFID reader when it is time for the first RFID reader to resume its inventory session, wherein the first RFID reader is further configured to reflag the tags for which information was stored representing the tags that were inventoried by the first RFID reader prior to resuming its interrupted inventory session. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification