Seismic-data acquisition methods and apparatus

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

Reexamination Certificate

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C367S076000

Reexamination Certificate

active

11118104

ABSTRACT:
A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“DTMF”) digits. A geophone interface is provided with a geophone for collecting acoustic data incident on the geophone. A memory is connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. A battery power source is connected with the microprocessor.

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Vectorseis System Four VR brochure 2002 Input/Output, Inc.

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