Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing
Reexamination Certificate
2005-02-15
2005-02-15
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With beam steering, scanning, or focussing
C367S103000
Reexamination Certificate
active
06856577
ABSTRACT:
A receiving beam is formed using 60 elements arranged in a 90° sector area of a cylindrical receiving array. Receiving beam0is formed with elements0-59divided into two (front and rear) groups. Specifically, the elements0-59are divided into rear group 1 (elements0-8, 51-59) and front group 2 (elements9-50) in the beam direction, and the receiving beam is formed by using sample data obtained from the transducer elements0-8, 51-59of group 1 in a current scanning cycle as well as sample data obtained from the transducer elements9-50of group 2 in a preceding scanning cycle. This approach makes it possible to form the receiving beam such that incoming waves of a short-pulse signal would simultaneously hit the relevant transducer elements of the receiving array and thereby improve directivity and sensitivity of the receiving beam for the reception of short-pulse waves.
REFERENCES:
patent: 4262344 (1981-04-01), Gilmour
patent: 4313184 (1982-01-01), Jarman et al.
patent: 4841491 (1989-06-01), Kondo et al.
patent: 5544655 (1996-08-01), Daigle
patent: 5667373 (1997-09-01), Wright et al.
patent: 6192006 (2001-02-01), Iino et al.
patent: 6310832 (2001-10-01), Kits van Heyningen
patent: 0368418 (1990-05-01), None
patent: 2029574 (1980-03-01), None
patent: WO-9803919 (1996-02-01), None
Handa Minoru
Iino Hiroshi
Nishimori Yasushi
Okunishi Akira
Birch & Stewart Kolasch & Birch, LLP
Furuno Electric Company Ltd.
Lobo Ian J.
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