Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Reexamination Certificate
2007-12-21
2010-12-14
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
Reexamination Certificate
active
07852709
ABSTRACT:
A sonar system and method of use capable of discriminating a direct acoustic signal present at 60 dB or more above the acoustic echo signal.
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Ashworth David
Freeman Larry
Green John
Lerro Donald
General Dynamice Information Technology
Kelley Drye & Warren LLP
Pihulic Dan
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