Multiplexing method and apparatus for telemetry of seismic data

Details Multiplexing method and apparatus for telemetry of seismic data Multiplexing method and apparatus for telemetry of seismic data

1974-02-28

1976-11-02

Birmiel, Howard A.

Communications: electrical

Selective

Having electron beam device

179 15AL, 340147SY, 340151, 340152R, G01V 122

Patent

active

039900363

ABSTRACT:
A single time-multiplexed channel for telemetry of seismic data from a plurality of remote, spaced-apart sensors to a central recording device. All of the sensors are identical and interchangeable. A unique polling signal is transmitted over a telemetry link to each sensor. Upon receipt of the polling signal, each sensor in turn transmits its accumulated data over the telemetry link to a recording device. The time-delay due to polling-signal propagation between successive sensors provides a time window during which each sensor can transmit data.

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patent: 3748638 (1973-07-01), Montgomery, Jr. et al.
patent: 3824545 (1974-07-01), Brenner et al.
patent: 3851302 (1974-11-01), Schmitt

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