Communications – electrical: acoustic wave systems and devices – Transmitter systems – With beam forming – shaping – steering – or scanning
Reexamination Certificate
2007-05-01
2007-05-01
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Transmitter systems
With beam forming, shaping, steering, or scanning
C367S905000
Reexamination Certificate
active
10247849
ABSTRACT:
Described herein is sonar localization apparatus which comprises a plurality of acoustic transducers (6) arranged to define at least two end fire arrays (2, 4) each of which produces a sonar beam (10, 12) suitable for the detection of objects in the near field.
REFERENCES:
patent: 4965776 (1990-10-01), Mueller
H.O. Berktay et al., “Nearfield effects in end-fire line arrays”, The Journal of the Acoustical Society America, vol. 53, 1973, pp. 550-556.
BAE Systems (Land and Sea Systems) Limited
Pihulic Dan
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