Data encoding and synchronization for pulse telemetry

Details Data encoding and synchronization for pulse telemetry Data encoding and synchronization for pulse telemetry

H - Electricity

04

B

349/6, 340/72

H04B 15/00 (2006.01)

Patent

CA 1191917

DATA ENCODING AND SYNCHRONIZATION FOR PULSE TELEMETRY Abstract of the Disclosure A method and apparatus for encoding and synchronizing and sequencing pulse encoded data in a pulse telemetry system. The time intervals between successive pulses in a pulse train are representative of the magnitude of the data parameters. Redundant pulses are included in the pulse trains at predetermined time locations with respect to the pulses so as to enhance the ability to recognize or distinguish data pulses over noise signals. Synchronization pulses are employed to enable identification of the particular data parameters even though one or more of the data pulses is obscured by noise. The sequence of the production of the pulse code signals is continuously monitored to enable the telemetering system to be activated promptly after a shutdown at the place in the train of data where it would be if the shutdown had not occurred.

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