TRANSIENT STATE INFORMATION DISPLAY IN AN RFID TAG
First Claim
1. A method, operative in a radio frequency identification (RFID) tag, the RFID tag being associated with a product and having a sensor, and a display, comprising:
- in response to receipt of a signal that includes a first value associated with a given characteristic, comparing the first value to a second value generated by the sensor in response to receipt of the signal; and
displaying an indication on the display that is a function of the comparison.
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Accused Products
Abstract
An RFID tag includes a sensor for determining a transient state or condition of a product to which the tag is associated, and a display. The tag may be passive, semi-passive, or active. In response to receipt at the tag of a read signal that includes a first value associated with the transient state or condition, a comparison is performed. The comparison compares the first value, with a second value generated by the sensor in response to receipt of the read signal. As a result of the comparison, an indication is provided on the display. The information displayed is a function of the comparison. In one embodiment, the display provides different color indications depending on the transient state or condition sensed.
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Citations
24 Claims
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1. A method, operative in a radio frequency identification (RFID) tag, the RFID tag being associated with a product and having a sensor, and a display, comprising:
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in response to receipt of a signal that includes a first value associated with a given characteristic, comparing the first value to a second value generated by the sensor in response to receipt of the signal; and displaying an indication on the display that is a function of the comparison. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An RFID tag, comprising:
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a sensor; a display; a processor; and a set of program instructions executable by the processor to perform the following method; in response to receipt of a signal that includes a first value associated with a given characteristic of a product with which the RFID tag is associated, comparing the first value to a second value generated by the sensor in response to receipt of the signal; and displaying an indication on the display that is a function of the comparison. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An RFID system, comprising:
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a reader that generates an interrogation signal; and a set of RFID tags, at least one tag comprising; a sensor; a display; a processor; and a set of program instructions executable by the processor to perform the following method; in response to receipt of the interrogation signal that includes a first value associated with a given characteristic of a product with which the RFID tag is associated, comparing the first value to a second value generated by the sensor in response to receipt of the interrogation signal; and displaying an indication on the display that is a function of the comparison. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An enterprise RFID system, comprising:
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an RFID controller; one or more RFID readers coupled to the RFID controller; one or more RFID tags wirelessly coupled to a one of the RFID readers, at least one tag comprising; a sensor; a display; a processor; and a set of program instructions executable by the processor to perform the following method; in response to receipt of an interrogation signal from an RFID reader that includes a first value associated with a given characteristic of a product with which the RFID tag is associated, comparing the first value to a second value generated by the sensor in response to receipt of the interrogation signal; and displaying an indication on the display that is a function of the comparison. - View Dependent Claims (20, 21)
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22. A computer program product including computer program instructions for carrying out the following method steps in an RFID tag, the RFID tag having a sensor, and a display:
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in response to receipt of a signal that includes a first value associated with a given characteristic, comparing the first value to a second value generated by the RFID tag sensor in response to receipt of the signal; and displaying an indication on the RFID tag display that is a function of the comparison. - View Dependent Claims (23, 24)
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Specification