Marine cable location system

Details Marine cable location system Marine cable location system

Filed on

1978-03-13

Date issued

1980-10-28

Examiner

Buczinski, Stephen C.

Patent Class

Communications, electrical: acoustic wave systems and devices

SubClass

Seismic prospecting

SubSubClass

Offshore prospecting

Other Related Categories

114253, 343 5EM, 367106, 367130, G01V 138

Type

Patent

Status

active

Patent number

042311110

Description

ABSTRACT:
A marine cable location system includes a plurality of magnetic compasses located at known spaced intervals along a cable being towed by a marine vessel. These compass readings are recorded along with an onboard magnetic compass reading, an onboard gyrocompass reading, and satellite navigational information. From these recordings, the X-Y coordinates of cable compasses with respect to vessel heading are determined. These X-Y coordinates are recorded along with the vessel's position and heading on magnetic tape and a cathode-ray tube so as to provide a visual display of the cable position with respect to the vessel.

REFERENCES:
patent: 3840845 (1974-10-01), Brown
patent: 3953827 (1976-04-01), Moal et al.
patent: 3981008 (1976-09-01), Mann
patent: 4068208 (1978-01-01), Rice, Jr. et al.
patent: 4086632 (1978-04-01), Lions

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