Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2005-04-19
2005-04-19
Crosland, Donnie L. (Department: 2636)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S572100, C340S870030, C340S870030, C340S333000, C235S384000
Reexamination Certificate
active
06882274
ABSTRACT:
An energy conserving tracking tag for receiving a radio frequency location data signal from a global positioning satellite and for communicating with a tracking system. The tag includes a receiver circuit for receiving the location data signal from the global positioning satellite, a customer ID module for generating a unique tag identification signal, a transponder circuit for receiving command signals from the tracking system, and a power circuit electrically engageable with a battery power supply and an external power source. The tag also includes a programmable microprocessor in electrical communication with the power circuit, receiver circuit, customer ID module, and transponder circuit. The microprocessor is operative to collect the location data signal, the identification signal, and the command signals, and subsequently produce an composite output signal. The transponder is further operative to transmit the composite output signal to the tracking system by radio carrier wave.
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Head Barry L.
Richardson David L.
Crosland Donnie L.
Northrop Grumman Corporation
Stetina Brunda Garred & Brucker
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