Radio Frequency Identification Devices, Remote Communication Devices, Identification Systems, Communication Methods, and Identification Methods
First Claim
1. A method of tracking inventory, the method comprising:
- placing one or more items at a first location, the one or more items having a radio frequency identification (RFID) tag attached thereto;
providing one or more interrogators identifying information associated with the RFID tag;
broadcasting by the one or more interrogators a first message, the first message comprising a tag identifier;
receiving by a plurality of RFID tags the first message;
communicating by a first RFID tag of the plurality of RFID tags a second message, the first RFID tag being identified by the tag identifier, the first RFID tag having a first location;
receiving by the one or more interrogators the second message; and
providing an indication of the first location.
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Accused Products
Abstract
The present invention provides radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods. A radio frequency identification device according to one aspect includes a substrate; communication circuitry coupled with the substrate and configured to receive a wireless signal including an identifier, to process the identifier of the wireless signal and to output a control signal responsive to the processing of the identifier; and indication circuitry coupled with the communication circuitry and configured to receive the control signal and to indicate presence of the radio frequency identification device responsive to the control signal. A communication method according to another aspect includes providing a radio frequency identification device; receiving a wireless signal including an identifier within the radio frequency identification device; processing the identifier; generating a control signal after the processing; and indicating presence of the radio frequency identification device using indication circuitry of the radio frequency identification device responsive to the control signal.
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Citations
5 Claims
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1. A method of tracking inventory, the method comprising:
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placing one or more items at a first location, the one or more items having a radio frequency identification (RFID) tag attached thereto; providing one or more interrogators identifying information associated with the RFID tag; broadcasting by the one or more interrogators a first message, the first message comprising a tag identifier; receiving by a plurality of RFID tags the first message; communicating by a first RFID tag of the plurality of RFID tags a second message, the first RFID tag being identified by the tag identifier, the first RFID tag having a first location; receiving by the one or more interrogators the second message; and providing an indication of the first location. - View Dependent Claims (2, 3, 4, 5)
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Specification