RFID systems and methods employing infrared localization
First Claim
1. A radio frequency identification (RFID) system, comprising:
- an RFID signpost; and
a plurality of infrared transmitters;
wherein each infrared transmitter of the plurality of infrared transmitters is arranged to cover, when transmitting, a distinct sector relative to the RFID signpost.
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0 Petitions
Accused Products
Abstract
A series of radio frequency identification (RFID) systems are delineated. One such RFID system comprises an RFID signpost, and a plurality of infrared transmitters, wherein each infrared transmitter of the plurality of infrared transmitters is arranged to cover, when transmitting, a distinct sector relative to the RFID signpost. Another RFID system comprises an RFID signpost having a transmitter for transmitting signals of a predefined type, and a receiver for receiving signals of the predefined type, wherein the transmitter for transmitting signals of the predefined type cannot transmit until a determination is made that the predefined type of signal is not present at the receiver. Still another RFID system comprises an RFID signpost including a transmitter having a continuous power dissipation rating, and a processor for controlling the transmitter such that peak pulse power of a transmission from the transmitter multiplied by its duty cycle does not exceed the continuous power dissipation rating for the transmitter.
96 Citations
6 Claims
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1. A radio frequency identification (RFID) system, comprising:
- an RFID signpost; and
a plurality of infrared transmitters;
wherein each infrared transmitter of the plurality of infrared transmitters is arranged to cover, when transmitting, a distinct sector relative to the RFID signpost. - View Dependent Claims (2, 3, 4, 5, 6)
- an RFID signpost; and
Specification