Train proximity detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 15, 2000
Issued Date -
N/A
app pub date -
Feb 4, 1998
filing date -
Aug 22, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a train proximity detector for detecting an RF carrier transmitted by a train, for a predefined period of time. Further, the encoded FSK data is decoded to determine if a match with a predefined data signature exists. If a match exists, visual and audio indications are provided to the operator, indicating a close proximity of a train. Modifications to train equipment can be made to cause the transmission of the carrier and FSK data on the activation of the train whistle, which is about 1500 feet from every crossing.
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Family
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Cited Art Landscape
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