Patent ID: 6011753
Filing Date: 2000-01-04
Classification: G01V

Abstract:
A system to control and monitor external devices external to a seismic cable behind a vessel and wherein each of the devices is connected to the cable through an associated magnetic coil coupling, the system comprising:a. a plurality of seismic data telemetry conductors, each of the plurality of seismic data telemetry conductors comprisingi. a command line outbound from the vessel, andii. a data transmission line inbound toward the vessel;b. a plurality of modules, with one of the plurality of modules between each of the plurality of data telemetry conductors;c. a plurality of control conductors, each control conductor providing control to one of a plurality of devices external to the seismic cable, wherein each of the plurality of control conductors is coupled to an associated module; andd. a switch in each of the plurality of modules to selectively connect one of the plurality of control conductors to an associated data telemetry conductor.