Communications: directive radio wave systems and devices (e.g. – Return signal controls external device
Reexamination Certificate
2011-01-25
2011-01-25
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
C342S029000, C342S041000, C340S945000, C340S983000
Reexamination Certificate
active
07876260
ABSTRACT:
A system for preventing light pollution includes one or more radar units that monitor for vehicles in a volume surrounding or containing one or more obstructions having one or more obstruction lights. A master radar detection processing unit receives sensed radar detection information from the one or more radar units with associated radar signal processing units and determines whether a vehicle is present within the monitored volume. A plurality of obstruction light controller units are interconnected in a network, such as a wireless network. Each obstruction light controller unit turns on an obstruction light when a vehicle enters the monitored volume or a failure condition exists, and turns off the obstruction light when the vehicle has vacated the monitored volume and no failure condition exists. The one or more radar units can transmit sensed radar detection information to a master radar detection processing unit via the network.
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Bythrow Peter
Proskauer Rose LLP
Tarcza Thomas H
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