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 8755553 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 17, 2014

Filed:

Dec. 24, 2009
Applicant:

Thomas Benedict Slotte, Turku, FI;

Inventor:
Assignee:

Nokia Corporation, Espoo, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus comprises: a transducer configured to generate sound; and a housing defining a first cavity and a second cavity, the first cavity and the second cavity being connected to the transducer; wherein the first cavity comprises a first sound outlet at a first surface of the housing; and the second cavity comprises a second sound outlet at the first surface of the housing and a third sound outlet at a second surface of the housing wherein the first and second cavities and the first and second sound outlets are configured to limit a sound pressure level of the generated sound at the first and second outlets at one or more frequencies.


Find Patent Forward Citations

Slotte, Thomas. (2014). Apparatus (U.S. Patent No. 8755553). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8755553

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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