Wireless Communication Systems, Interrogators and Methods of Communicating Within a Wireless Communication System
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Accused Products
Abstract
The present invention relates to wireless communication systems, interrogators and methods of communicating within a wireless communication system. One aspect of the present invention provides a wireless communication system including at least one remote communication device configured to communicate a return link wireless signal; an interrogator including: a communication station configured to receive the return link wireless signal and to generate a return link communication signal corresponding to the return link wireless signal; communication circuitry coupled with the communication station and configured to communicate the return link communication signal; and a housing remotely located with respect to the communication station and including circuitry configured to receive the return link communication signal from the communication circuitry and to process the return link communication signal.
93 Citations
57 Claims
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1-37. -37. (canceled)
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38. A system to track radio frequency identification (RFID) tags, the system comprising:
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a plurality of antennas;
a plurality of communication stations, each communication station being communicatively coupled to one or more of the plurality of antennas;
a plurality of communication circuitry units, each communication circuitry unit communicatively coupled to a respective one of the plurality of communication stations; and
an interrogator communicatively coupled to the plurality of communication circuitry units, the interrogator being remotely located from the plurality of communication circuitry units and configured to cause the communication circuitry units to communicate with the RFID tags. - View Dependent Claims (39, 40, 41, 42)
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43. A system to track radio frequency identification (RFID) tags, the system comprising:
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a plurality of first antennas configured to transmit forward link wireless communications and a plurality of second antennas being configured to receive return link wireless communications;
low noise amplifiers communicatively coupled to respective ones of the plurality of first and second antennas;
automatic gain control circuits communicatively coupled to respective ones of the low noise amplifiers, the automatic gain control circuits adjusting at least one electrical characteristic of a signal received from the low noise amplifiers; and
a processing circuitry communicatively coupled to the automatic gain control circuits to process signals received from the automatic gain control circuits. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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51. A method of tracking inventory, the method comprising:
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positioning a plurality of transceivers in a first region, each transceiver comprising one or more antennas communicatively coupled to a communication station communicatively coupled to communication circuitry;
positioning an interrogator unit remotely from the plurality of transceivers, the interrogator unit being communicatively coupled to the plurality of transceivers; and
positioning one or more items having one or more radio frequency identification (RFID) tags attached thereto in the first region, the one or more RFID tags being configured to communicate wirelessly with one or more of the plurality of transceivers, thereby identifying at least some of the one more RFID tags. - View Dependent Claims (52, 53, 54, 55, 56, 57)
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Specification