Directional finding system implementing a rolling code
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United States of America Patent
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Issued Date -
Feb 26, 2004
app pub date -
Aug 20, 2002
filing date -
Aug 20, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for finding an object, e.g., person, automobile. A monitoring device may be configured to monitor one or more units 'monitored units' which are attached to various objects, e.g., person, automobile. The monitoring device may poll each monitored unit. Based on the signal strength of the responses, the monitoring device may determine the approximate distance each monitored unit is located from the monitoring device. Both the monitoring device and each monitored unit may be configured to store an algorithm to allow for a rolling identification code to be transmitted between the two devices. By transmitting a rolling identification code between the two devices, a third party would be less likely to associate the identification code with the object, e.g., person, attached to the monitored unit.
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