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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0856460 (1997-05-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 | 피인용 횟수 : 18 인용 특허 : 13 |
A track circuit with diagnostic capability differentiates between an occupied track circuit and one in which a conductor of the track circuit (one of the rails) is broken. Transceiver units are provided at the respective ends of the track circuit and operate alternately in transmit and receive modes
[ Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is as follows:] [1.] A method of detecting the operational condition of a railroad track comprising:(a) providing first and second units connected to the track at spaced locations along the trac
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