Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Reexamination Certificate
2007-05-31
2009-11-03
Benson, Walter (Department: 2834)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
C310S335000, C310S359000
Reexamination Certificate
active
07613076
ABSTRACT:
An acoustic power transformer includes: an input port adapted to receive an input signal; a transmitting acoustic transducer coupled to the input port and adapted to transmit an acoustic wave in response to the input signal received at the input port; a receiving acoustic transducer adapted to receive the acoustic wave and in response thereto to produce an output signal; an output port adapted to output the output signal; and an acoustic medium disposed in an acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer. In one case, at least one of the transmitting acoustic transducer and receiving acoustic transducer includes a Fresnel lens. In another case, the transformer includes an acoustic lens disposed in the acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer.
REFERENCES:
patent: 5974884 (1999-11-01), Sano et al.
patent: 6272922 (2001-08-01), Stevens et al.
patent: 6978028 (2005-12-01), Fink et al.
patent: 7038358 (2006-05-01), Bryant et al.
patent: 2002/0009631 (2002-01-01), Yoshinaka et al.
patent: 2006/0056274 (2006-03-01), Neeson et al.
Frank Michael L.
Gilbert Stephen R.
Larson, III John D.
Unkrich Mark A.
Avago Technologies Wireless IP (Singapore) Pte. Ltd.
Benson Walter
Gordon Bryan P
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