Selecting RFID tags using memory-mapped parameters
First Claim
Patent Images
1. A radio frequency identification (RFID) tag, comprising:
- an antenna that is arranged to receive a modulated wave; and
a processor that is arranged to;
associate with a mask address sensor data from a sensor associated with the tag;
decode from the wave at least one command that is associated with the mask address and a mask value; and
set a selection flag responsive to the command depending on whether the mask value matches a portion of the sensor data from the sensor.
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Abstract
Radio frequency identification (RFID) tags are associated with sensors. Sensor data from a sensor is internally associated with a mask address, such as that of a memory. The tags receive commands by a reader, which can include selection commands. The selection commands can be for selecting according to the sensor data, by invoking the mask address. The selection commands can be further associated with a mask value, calling for setting a selection flag only by those tags whose sensor data meets a selection condition relative to the mask value. Therefore the reader can select a sub-population of tags from a larger population based on sensor data.
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Citations
37 Claims
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1. A radio frequency identification (RFID) tag, comprising:
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an antenna that is arranged to receive a modulated wave; and
a processor that is arranged to;
associate with a mask address sensor data from a sensor associated with the tag;
decode from the wave at least one command that is associated with the mask address and a mask value; and
set a selection flag responsive to the command depending on whether the mask value matches a portion of the sensor data from the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A radio frequency identification (RFID) tag, comprising:
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a means for associating with a mask address sensor data from a sensor associated with the tag;
a means for receiving a modulated wave;
a means for decoding from the wave at least one command that is associated with the mask address and a mask value; and
a means for setting a selection flag responsive to the command depending on whether the mask value matches a portion of the sensor data. - View Dependent Claims (19, 20, 21)
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22. A method for a radio frequency identification (RFID) tag, comprising:
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associating with a mask address sensor data from a sensor associated with the tag;
receiving a modulated wave;
decoding from the wave at least one command that is associated with the mask address and a mask value; and
setting a selection flag responsive to the command depending on whether the mask value matches a portion of the sensor data. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification