The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9860646 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 02, 2018

Filed:

Oct. 17, 2012
Applicant:

Bae Systems Plc, London, GB;

Inventors:

John Martin Bagshaw, Chelmsford, GB;

Lionel William John Kent, Chelmsford, GB;

Christophe Arthur Paul Boulet, Chelmsford, GB;

Assignee:

BAE Systems plc, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H04B 11/00 (2006.01); B06B 1/02 (2006.01); H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
H04R 17/00 (2013.01); B06B 1/0215 (2013.01); H04B 11/00 (2013.01); H01L 41/0825 (2013.01);
Abstract

There is disclosed herein a transducer for acoustic communications through a series arrangement of fluid and solid media, the transducer comprising: —a signal processor configured to implement a communications scheme at and around a center frequency of at least 1 MHz; a piezoelectric element for activation in accord with the communications scheme; an electrode electrically connected to the signal processor, and being attached to the piezoelectric element; and a substrate, having the piezoelectric element mounted thereon, wherein an aspect of the electrode at the piezoelectric element is approximately equal to the acoustic wavelength of an acoustic wave in the substrate at the center frequency. There is further disclosed a remote monitoring device employing at least one of the transducers described, in concert with a further transducer. Still further, there is disclosed a method of communicating using the transducer described herein.


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