Tagging and tracking system
First Claim
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1. A tagging and tracking system, comprising:
- an electromagnetic transmitter having an output;
a modulating tag embedding an information signal on a reflection of the output from the electromagnetic transmitter, wherein the modulating tag includes a tamper proof system;
a receiver for receiving the reflection having the information signal, the receiver having a received output; and
a processor coupled to the received output for decoding the information signal.
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Abstract
A tagging and tracking system includes an electromagnetic transmitter having an output. A modulating tag embeds an information signal on a reflection of the output from the electromagnetic transmitter. The modulating tag includes a tamper proof system. A receiver receives the reflection with the information signal. The receiver has a received output. A processor is coupled to the received output for decoding the information signal.
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Citations
20 Claims
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1. A tagging and tracking system, comprising:
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an electromagnetic transmitter having an output;
a modulating tag embedding an information signal on a reflection of the output from the electromagnetic transmitter, wherein the modulating tag includes a tamper proof system;
a receiver for receiving the reflection having the information signal, the receiver having a received output; and
a processor coupled to the received output for decoding the information signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tagging and tracking system, comprising:
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a plurality of modulating tags each attached to one of a plurality of mobile units;
a plurality of electromagnetic transmitters positioned in a plurality of key locations;
a plurality of receivers, one of the plurality of receivers receiving a reflected signal from one of the plurality of modulating tags; and
a database coupled to the plurality of receivers comparing the reflected signal to a predetermined signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A tagging and tracking system, comprising:
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a plurality of modulating tags attached to a plurality of mobile units, each of the plurality of tags capable of modulating a polarization of a received signal;
an electromagnetic transmitter having an output capable of being pointed at one of the plurality of modulating tags;
an electromagnetic receiver receiving a reflected signal from one of the plurality of modulating tags; and
a processor uniquely identifying the one of the plurality of modulating tags. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification