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.

Date of Patent:
Dec. 06, 2016

Filed:

Dec. 20, 2011
Applicants:

Andreas Fromel, Kirchseeon, DE;

Josef Stohr, Langenau, DE;

Inventors:

Andreas Fromel, Kirchseeon, DE;

Josef Stohr, Langenau, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 1/22 (2006.01);
U.S. Cl.
CPC ...
H04R 1/22 (2013.01); H04R 1/00 (2013.01);
Abstract

Apparatus comprising: at least one transducer configured to generate at least one lower frequency acoustic signal for output by a surface when in contact with the apparatus and at least one higher frequency acoustic signal for output by air conduction.


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