Multilingual code receivers
US4885689A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1987 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Apr 22, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L1/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.