Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Reexamination Certificate
2006-01-17
2006-01-17
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
C367S087000
Reexamination Certificate
active
06987707
ABSTRACT:
A system and method are presented for determining the detection and location of persons and objects using ultrasonic acoustic sensors. The system allows detection of stationary and moving persons and other objects, through atmospheric conditions, to a distance of at least 300 feet. The invention further provides for enhanced signal processing through the use of arrays of transmitters and receivers, where one or more transmitter arrays may be oriented substantially perpendicularly to one or more receiver arrays, allowing high directionality and good rejection of reverberations, background noise, clutter and objects not of interest.
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Borrell Ronald A.
Cox Michael
Feintuch Paul L.
Reed Francis A.
Bell Michael J.
General Dynamics Advanced Information Systems Inc.
Howrey LLP
Lobo Ian J.
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