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Binary data transmission capability incorporated into pulse coded railroad signaling system

  • US 6,834,836 B2
  • Filed: 01/16/2003
  • Issued: 12/28/2004
  • Est. Priority Date: 01/22/2002
  • Status: Expired due to Term
First Claim
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1. A railroad signaling system operative for controlling railroad traffic to control signals, said system comprising:

  • a control point;

    a control block having a plurality of common nodes and one of the nodes which serves as a control point; and

    a common medium which is capable of transmitting the control signals and separate independent messages, including means for precluding interference between said control signals and said independent messages, wherein the control signal are transmitted to and effect operation of adjacent common nodes, whereas the independent messages are transmitted ultimately to the control point node from an originating common node.

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