06854691 is referenced by 25 patents and cites 24 patents.

An improved railroad communication system configurable to comply with newly proposed FRA regulations and further configurable to addresses the concern of communications conflicts is provided. The railroad communication system includes a first radio communication system operating in a first frequency band of about 450 MHz band for communication with a locomotive. The system further includes a second radio communication system operating in a second frequency band selected to be different from the first frequency so as to avoid interference with the first radio communication system for communication with the locomotive. A processor on the locomotive enables the locomotive to selectively respond to the designated control signals so that operation of the locomotive will respond only to the appropriate control signals.

Title
Railroad communication system
Application Number
10/218501
Publication Number
6854691 (B2)
Application Date
August 12, 2002
Publication Date
February 15, 2005
Inventor
Robert Dwain Lee Jr
West Melbourne
FL, US
Glen Paul Peltonen
Melbourne
FL, US
Robert James Foy
Melbourne
FL, US
Mark Bradshaw Kraeling
Melbourne
FL, US
Agent
Beusse Brownlee Wolter Mora & Maire P A
Enrique J Mora Esq
Carl Rowold Esq
IPC
B61L 027/00
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