Queued Operations in HF/UHF RFID Applications
First Claim
1. A method for pipelined processing of access commands to a population of radio frequency identification (RFID) tags, comprising:
- transmitting a first queued access command to a first tag in the population of RFID tags, wherein the queued access command causes the first tag to perform an operation and upon completion of the operation, to suspend transaction processing;
transmitting a second queued access command to a second tag in the population of RFID tags, wherein the second queued access command is transmitted while the first tag is performing the command operation; and
transmitting a status request command to the first tag, wherein the status request command causes the first tag to resume normal processing.
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Accused Products
Abstract
A method for pipelined processing of access commands to a population of radio frequency identification (RFID) tags is provided. The method includes transmitting a first queued access command to a first tag in the population of RFID tags, transmitting a second queued access command to a second tag in the population of RFID tags, and transmitting a status request command to the first tag. The queued access command causes the first tag to perform an operation and upon completion of the operation, to suspend transaction processing. The second queued access command is transmitted while the first tag is performing the command operation. The status request command causes the first tag to resume normal processing.
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Citations
21 Claims
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1. A method for pipelined processing of access commands to a population of radio frequency identification (RFID) tags, comprising:
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transmitting a first queued access command to a first tag in the population of RFID tags, wherein the queued access command causes the first tag to perform an operation and upon completion of the operation, to suspend transaction processing; transmitting a second queued access command to a second tag in the population of RFID tags, wherein the second queued access command is transmitted while the first tag is performing the command operation; and transmitting a status request command to the first tag, wherein the status request command causes the first tag to resume normal processing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for pipelined processing of access commands to a population of radio frequency identification (RFID) tags, comprising:
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receiving a queued access command; performing an operation in response to the first command; and upon completion of command operation, suspending processing of transactions. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An interrogator for pipelined processing of access commands to a population of radio frequency identification (RFID) tags, comprising:
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means for sequentially transmitting queued access commands to a set of tags in the population of RFID tags, wherein a queued access command causes a tag to perform an operation and upon completion of the operation, to suspend transaction processing; and means for sequentially transmitting status request commands to the set of tags in the population of RFID tags, wherein a status request command causes a tag to resume normal processing. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method for pipelined processing of access commands to a population of radio frequency identification (RFID) tags, comprising:
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sequentially transmitting a plurality of queued access commands to the population of RFID tags, wherein each queued access command following an initial queued access command is transmitted prior to receipt of a reply to an immediately prior queued access command; and sequentially transmitting a plurality of status request commands to the population of RFID tags. - View Dependent Claims (21)
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Specification