Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing
Reexamination Certificate
2006-09-12
2006-09-12
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With beam steering, scanning, or focussing
C367S902000
Reexamination Certificate
active
07106658
ABSTRACT:
An apparatus for determining a position includes a source which transmits a signal having a source position and a transmission time coded therein. A sensor having a directional beam pattern is positioned at the location of interest. A signal processor steers the directional beam pattern of the sensor in order to determine the direction to the signal source. A sensor processor uses a clock to find a receipt time of the signal. The transmission time and source position is decoded from the signal. The position of interest is calculated from the receipt time, transmission time, direction, and source position. A method is also provided.
REFERENCES:
patent: 2005/0219950 (2005-10-01), Rowe
Cray Benjamin A.
Vincent, II Harold T.
Kasischke James M.
Nasser Jean-Paul A.
Pihulic Dan
Stanley Michael P.
The United States of America represented by the Secretary of the
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