Multilingual code receivers

Details Multilingual code receivers Multilingual code receivers

1987-04-22

1989-12-05

Lall, Parshotam S.

Boots, shoes, and leggings

34082513, 246167R, 375121, B61L 300, B61B 1316

Patent

active

048856894

ABSTRACT:
A telemetry receiver which is capable of automatically recognizing certain incompatible code formats and correctly decoding received data from a remotely located telemetry transmitter is disclosed. The specific embodiment is an end of train receiver mounted in the cab of a locomotive which receives encoded transmissions, including encoded brake pipe pressure data, a transmitter mounted on the last car of a train. The receiver permits telemetry equipment to be "mixed-and-matched"; that is, the receiver in the locomotive will respond to the transmissions of a telemetry transmitter attached to the last car of the train no matter what the vendor source. The telemetry receiver is provided with a microprocessor which analyzes the received transmission. The microprocessor is programmed to recognize certain known transmission protocols and formats and then invoke the correct routine for decoding the received data.

REFERENCES:
patent: H241 (1987-03-01), Duffy
patent: 3384033 (1968-05-01), Ruff
patent: 4241398 (1980-12-01), Carll
patent: 4493021 (1985-01-01), Agrawal et al.
patent: 4582280 (1986-04-01), Nichols et al.
patent: 4688170 (1987-08-01), Waite et al.
J. Hanousek, "Frame Synchronisation in PCM Telemetry Systems", Sdelovaci Tech. (Czechoslovakia), vol. 26, No. 12 (Dec. 1978), pp. 449-452.

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