Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With plurality of transducers
Reexamination Certificate
2005-05-10
2008-12-30
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With plurality of transducers
C367S124000, C367S118000
Reexamination Certificate
active
07471592
ABSTRACT:
An apparatus for range-estimating a noise source including a first passive, vertical hydrophone array of at least two receivers at a first distance from the noise source. The apparatus includes a second passive, vertical hydrophone array of at least two receivers at a second distance from the noise source. The apparatus also includes a processor communicating with the first passive, vertical hydrophone array and the second passive, vertical hydrophone array to determine a ratio of the first distance to the second distance.
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Karasek John J.
Koshy Suresh
Lobo Ian J
The United States of America as represented by the Secretary of
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