3-D forward looking sonar with fixed frame of reference for...

Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems

Reexamination Certificate

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C367S131000

Reexamination Certificate

active

07035166

ABSTRACT:
An imaging sonar system develops three-dimensional images of the space below, to the sides, and forward of a ship relative to a fixed frame of reference. Various features permit the system to be used in non-military environments and make possible low cost with substantial capabilities.

REFERENCES:
patent: 3641484 (1972-02-01), White et al.
patent: 3731264 (1973-05-01), Campbell et al.
patent: 4635240 (1987-01-01), Geohegan et al.
patent: 5200931 (1993-04-01), Kosalos et al.
patent: 6084827 (2000-07-01), Johnson et al.
patent: 6449215 (2002-09-01), Shell

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