Communications: directive radio wave systems and devices (e.g. – Determining distance – Triangulation
Reexamination Certificate
2008-05-27
2008-05-27
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
Triangulation
C342S133000, C342S120000, C342S107000, C342S357490, C342S357490
Reexamination Certificate
active
07379015
ABSTRACT:
A positioning system for tracking the location of a first responder emergency worker. The system includes mobile enabler units and a personnel badge having a ranging transponder. Two enabler units can use two-way ranging signals, a prescribed turn around time and differential altitude for automatically tracking the location of the badge.
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Menlo Patent Agency LLC
Sotomayor John B
Trimble Navigation Limited
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