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1. 发明授权

US06025789A Train proximity detector 失效
标题翻译：火车接近检测器
公开(公告)号：US06025789A
公开(公告)日：2000-02-15
申请号：US18431
申请日：1998-02-04
申请人： Brent A. Lane , Jack M. Erick
发明人： Brent A. Lane , Jack M. Erick
IPC分类号： B61L29/24 , G08G1/01
CPC分类号： B61L29/246
摘要： 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.
摘要翻译：公开了一种用于在预定时间段内检测由列车发送的RF载波的列车接近检测器。此外，编码的FSK数据被解码以确定是否存在与预定义数据签名的匹配。如果存在匹配，则向操作者提供视觉和音频指示，指示列车的紧密接近。可以对训练设备进行修改，使得运载火箭和FSK数据的传输在火车口哨的激活上，距离每个交叉口约1500英尺。

2. 发明授权

US5739768A Train proximity detector 失效
公开(公告)号：US5739768A
公开(公告)日：1998-04-14
申请号：US600351
申请日：1996-02-12
申请人： Brent A. Lane , Jack M. Erick
发明人： Brent A. Lane , Jack M. Erick
IPC分类号： B61L29/24 , G08G1/01
CPC分类号： B61L29/246
摘要： 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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