Location management for radio frequency identification readers
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0 Petitions
Accused Products
Abstract
A Radio Frequency Identification (RFID) system for managing and identifying locations for an RFID reader is disclosed. An expected location of a fixed radio frequency identification (RFID) reader is determined. A first signal is transmitted from the reader to a first RFID tag to determine whether the reader is at the expected location. The first tag is a fiducial RFID tag fixed at a first location. In one aspect, the reader receives a first response to the first signal from the first tag. The first response identifies the first location of the first tag. The first location is compared to the expected location. If the first location and the expected location are different, an alarm is triggered.
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Citations
112 Claims
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1-20. -20. (canceled)
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21. A method comprising:
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determining an expected location of a fixed radio frequency identification (RFID) reader; and transmitting a first signal from the reader to a first RFID tag associated with the reader to determine whether the reader is at the expected location, wherein the first RFID tag is a fiducial RFID tag, including an antenna, fixed at a first location. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A machine-readable medium having instructions to cause a machine to perform a machine-implemented method comprising:
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determining an expected location of a fixed radio frequency identification (RFID) reader; and transmitting a first signal from the reader to a first RFID tag associated with the reader to determine whether the reader is at the expected location, wherein the first RFID tag is a fiducial RFID tag, including an antenna, fixed at a first location. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An apparatus comprising:
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means for determining an expected location of a fixed radio frequency identification (RFID) reader; and means for transmitting a first signal from the reader to a first RFID tag associated with the reader to determine whether the reader is at the expected location, wherein the first RFID tag is a fiducial RFID tag, including an antenna, fixed at a first location. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. An apparatus comprising:
a processor coupled to a memory through a bus, the processor configured to; determine an expected location of a fixed radio frequency identification (RFID) reader; and transmit a first signal from the reader to a first RFID tag associated with the reader to determine whether the reader is at the expected location, wherein the first RFID tag is a fiducial RFID tag, including an antenna, fixed at a first location. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A system comprising:
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a fiducial radio frequency identification (RFID) tag, including an antenna, fixed at a first location; and a fixed RFID reader within reading range of the fiducial RFID tag, the reader to elicit a response from the fiducial RFID tag, the response received by the reader to communicate the first location of the fiducial RFID tag to the reader. - View Dependent Claims (70, 71, 72, 73, 74)
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- 75. An apparatus comprising a fiducial Radio Frequency Identification (RFID) tag fixed at a first location, the fiducial tag including a memory, the memory storing data identifying the fixed location of the fiducial tag, wherein the data in the fiducial tag is sufficient for a RFID reader to self-determine a current location of the RFID reader.
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80. A radio frequency identification (RFID) reader for use in reading RFID tags, the reader comprising:
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a transmitter to transmit a first signal from the reader to an RFID tag including an antenna; and a receiver to receive a first response from the RFID tag, the first response identifying a first location of the RFID tag, wherein the reader is operable to; determine a current location of the reader based on calculating the reader'"'"'s location with respect to the first location based on the first response to the first signal received from the RFID tag; and compare the current location of the reader to an expected location of the reader to verify whether there is a match. - View Dependent Claims (81, 82, 83, 84, 85)
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86. A machine-readable storage medium having instructions, which when executed by a machine, cause the machine to perform a machine-implemented method, the method comprising:
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transmitting a first signal from a radio frequency identification (RFID) reader; receiving a first response to the first signal from a first RFID tag, wherein the first RFID tag is a fiducial RFID tag, including an antenna, fixed at a first location; identifying the first location of the first RFID tag based on the received response; determining a current location of the reader based on calculating the reader'"'"'s location with respect to the first location based on the first response to the first signal received from the first tag; and comparing the current location of the reader to an expected location of the reader to verify the reader is at the expected location. - View Dependent Claims (87, 88, 89, 90, 91)
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92. A method comprising:
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transmitting a signal from a radio frequency identification (RFID) reader, the signal to elicit responses from RFID tags; receiving at the reader a first response to the signal from at least one fiducial RFID tag including an antenna, the fiducial RFID tag being fixed at a known location within a space and having a unique code programmed within the at least one fiducial RFID tag to associate the fiducial RFID tag with the known location within the space; receiving at the reader a second response to the signal from a different RFID tag, wherein the different RFID tag is attached to a moveable object; and estimating a location of the object within the space based on the responses received from the at least one fiducial RFID tag and the different RFID tag. - View Dependent Claims (93, 94, 95)
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96. A method comprising:
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transmitting a signal from a radio frequency identification (RFID) reader, the signal to elicit responses from RFID tags; receiving at the reader a first response to the signal from at least one fiducial RFID tag including an antenna, the fiducial RFID tag being fixed at a known location within a space and having a unique code programmed within the fiducial RFID tag to associate the fiducial RFID tag with the known location within the space; receiving sensor data at the reader; and associating the sensor data with the known location within the space based on the response received from the fiducial RFID tag. - View Dependent Claims (97, 98, 99, 100, 101, 102)
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103. A system comprising:
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a plurality of fixed radio frequency identification (RFID) tags positioned about a space, each of the plurality of fixed RFID tags including an antenna, fixed at a known location within the space and having a unique code programmed within to associate with the known location within the space; a first RFID tag attached to a moveable object, the first RFID tag to track the object; and a mobile RFID reader to transmit a signal to elicit a response from the plurality of fixed RFID tags and the first RFID tag, wherein a location of the object is capable of being estimated based on responses received from the fixed RFID tags and the first RFID tag as the reader is moved about the space. - View Dependent Claims (104, 105, 106, 107, 108, 109, 110, 111, 112)
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Specification