Telecommunications – Carrier wave repeater or relay system
Reexamination Certificate
2005-03-23
2010-02-16
Dean, Raymond S (Department: 2618)
Telecommunications
Carrier wave repeater or relay system
C455S011100, C370S315000, C246S16700M, C701S020000
Reexamination Certificate
active
07664459
ABSTRACT:
A distributed power train (10) communications system for sending and receiving signals between a lead locomotive (14) and remote locomotives (12A/12B/12C) in the train (10). A lead (14) initiated message is received by at least the remote locomotive (12A/12B) nearest to the lead unit (14). The receiving remote unit (12A/12B) retransmits the message for receiving by the next remote unit (12C) in the train. Thus the message leapfrogs down the train from the lead unit (14) to the remote units (12A/12B/12C). When the last remote unit (the nth remote unit) (12C) receives the message, the last remote (12C) transmits a status or other response message to the lead unit's message. The status message is received at the (n-1)th remote unit (12A/12B), which appends its status message and transmits the combined status messages toward the lead unit (14). Each successive remote unit receives the status messages of the other remote units and appends its status message, until the concatenated status message reaches the lead unit (14).
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Palanti Robert C.
Peltz David Michael
Smith, Jr. Eugene A.
Beusse Wolter Sanks Mora & Maire, P.A.
Dean Raymond S
DeAngelis, Esq. John L.
General Electric Co.
Waurzyn, Esq. Robert
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