Multiplexing method and apparatus for telemetry of seismic data
Patent
·
OSTI ID:5156091
A single time-multiplexed channel for telemetry of seismic data from a plurality of remote, spaced-apart sensors to a central recording device is described. 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. 2 figures.
- Assignee:
- Western Geophysical Co.
- Patent Number(s):
- US 3990036
- OSTI ID:
- 5156091
- Country of Publication:
- United States
- Language:
- English
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