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 7940937 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2011

Filed:

Dec. 23, 2003
Applicant:

Clive Smith, Centennial, CO (US);

Inventor:

Clive Smith, Centennial, CO (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An acoustic-to-electrical transducer for sensing body sounds is disclosed. The transducer comprises a diaphragm that can be placed in direct contact with a body, whereby the diaphragm motion directly affects an electromagnetic sensing signal, which is then converted to an electrical signal representation of the diaphragm motion. Such sensing means allows the diaphragm to move freely without mechanical coupling to a secondary transducer, while providing a direct and efficient acoustic to electrical conversion means. The transducer further provides a means for using static diaphragm pressure to control gain and frequency characteristics of the electrical signal. The transducer provides methods for ambient noise reduction or cancellation, as well as means for simulating sound detection for applications such as medical education and testing. The sensor, circuitry, manufacturing methods and improvements are disclosed.


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Smith, Clive. (2011). Transducer for sensing body sounds (U.S. Patent No. 7940937). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7940937

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