Trainline controller electronics

Details Trainline controller electronics Trainline controller electronics

2005-12-27

2005-12-27

Crosland, Donnie L. (Department: 2636)

Communications: electrical

Vehicle detectors

C340S514000, C246S16700M, C246S00100C, C246S006000, C702S122000, C701S019000

Reexamination Certificate

active

06980127

ABSTRACT:
Trainline controller including testing of signal quality on a trainline network by commanding each node to transmitter calibration signal. A signal detector is connected to the trainline at a common junction with a head end termination circuit. A stuck-on transmitter is determined by a transmission current drawn by the transceiver is on for a present amount of time.

REFERENCES:
patent: 5630565 (1997-05-01), Lumbis
patent: 5647562 (1997-07-01), Lumbis et al.
patent: 5673876 (1997-10-01), Lumbis et al.
patent: 5777547 (1998-07-01), Waldrop
patent: 5907193 (1999-05-01), Lumbis
patent: 6275165 (2001-08-01), Bezos

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