Communications: electrical – Vehicle detectors
Reexamination Certificate
2006-05-02
2006-05-02
Nguyen, Hung (Department: 2636)
Communications: electrical
Vehicle detectors
C340S902000, C340S539100, C340S531000, C340S870030, C340S870030, C340S870030, C246S16700M, C246S16900S, C246S18700R
Reexamination Certificate
active
07038597
ABSTRACT:
A railroad distributed power communication method and system for wireless transceiver units at spaced locations along a train having remote units that may be out of direct communication with the lead unit for indicating that at least one of a plurality of such remote units is in receipt of a command message from the lead unit. The method and system including transmitting a status reply message from each of the plurality of remote units in response to that unit's receipt of the command message. Each of the status reply messages may include at least status information of the respective remote that corresponds to command instructions of the command message. At least one of the status reply messages of one of the other respective remote units may be received at an intermediate unit. The received status reply messages may be compared to the command message to determine whether the respective remote unit has received the command message and/or is following the set of command instructions. A command received status bit may be set in a second status reply message for each respective remote unit having received the command message and/or that is following the set of command instructions. The second status reply message may be decoded by a lead unit to determine whether the command received status bit has been set for a respective remote unit.
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Andes William Scott
Beusse Brownlee Wolter Mora & Maire P.A.
General Electric Company
Nguyen Hung
Nixon Norman A.
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