Radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods
First Claim
1. A method of providing an indication relating to the location of an object disposed at a first location and within a communication range of a transmitting radio frequency device, the method comprising:
- transmitting from the transmitting radio frequency device a first radio frequency signal, said transmitting radio frequency device adapted to identify information associated with a radio frequency communications device;
receiving from the radio frequency communications device a second radio frequency signal, the radio frequency communications device being identified by an identifier; and
observing an indication associated with the object at the first location, said indication being representative of the proximity of the radio frequency communications device to the transmitting radio frequency device.
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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.
113 Citations
21 Claims
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1. A method of providing an indication relating to the location of an object disposed at a first location and within a communication range of a transmitting radio frequency device, the method comprising:
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transmitting from the transmitting radio frequency device a first radio frequency signal, said transmitting radio frequency device adapted to identify information associated with a radio frequency communications device; receiving from the radio frequency communications device a second radio frequency signal, the radio frequency communications device being identified by an identifier; and observing an indication associated with the object at the first location, said indication being representative of the proximity of the radio frequency communications device to the transmitting radio frequency device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of providing an indication for the location of an object comprising a radio frequency communications device within a communication range of a transmitting radio frequency device, the method comprising:
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transmitting from the transmitting radio frequency device to an object disposed at a first location, a first message comprising an identifier, said identifier associated with the radio frequency communications device; and receiving from the radio frequency communications device a second message, the radio frequency communications device being identified by the identifier; wherein transmissions from the transmitting radio frequency device elicit an indication that is representative of the proximity of the radio frequency communications device to the transmitting radio frequency device. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of tracking inventory, the method comprising:
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transmitting by a transceiver apparatus a first message, the first message comprising a device identifier; receiving, at least at a radio frequency-based identification device associated with an item at a first location, the first message; communicating by the radio frequency-based identification device a second message, the radio frequency-based identification device being identified by the device identifier; receiving by the transceiver apparatus the second message; and providing an indication that is indicative of the proximity of the transceiver apparatus to the first location. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification