Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Reexamination Certificate
2005-08-09
2005-08-09
Zanelli, Michael J. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Railway vehicle
C701S002000, C701S020000, C246S003000, C246S004000, C246S005000, C246S18700R, C246S16700M
Reexamination Certificate
active
06928342
ABSTRACT:
A remote control unit for controlling a locomotive by transmitting signals to a remote receiver mounted onboard the locomotive is provided. The remote control unit includes an input for receiving a signal indicative of a command selected from a set of available commands. A signal transmitting unit transmits a signal indicative of the selected command repetitively to create a succession of signal transmission events. In a first example, each signal transmission event is spaced in time from a previous signal transmission event by a certain time interval having a duration conditioned at least in part on the basis of the selected command. In a second example, each signal transmission event includes a message portion and a header portion and the message portion of the signal has a length conditioned at least in part on the basis of the selected command. In a third example, each signal transmission event is characterized by a signal level conditioned at least in part on the basis of the selected command. The signal transmitting unit includes an RF modulator adapted for modulating data indicative of the selected command to generate a succession of modulated signals, each modulated signal corresponding to a respective signal transmission event in the succession of signal transmission events.
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Beltpack Corporation
Gibson Eric M.
Merchant & Gould P.C.
Zanelli Michael J.
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