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.:
Date of Patent:
Jun. 09, 2015
Filed:
Aug. 31, 2012
Applicants:
Christopher J. Link, Arlington, MA (US);
Hal Greenberger, Natick, MA (US);
Inventors:
Christopher J. Link, Arlington, MA (US);
Hal Greenberger, Natick, MA (US);
Assignee:
Bose Corporation, Framingham, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2834 (2013.01); H04R 1/2873 (2013.01);
Abstract
An audio system includes a passive radiator that is attached to one end of a lever arm. The other end of the lever arm is attached to a mass that serves to move out of phase of the passive radiator to cancel mechanical vibrations of the passive radiator, but without significantly affecting audio output. The lever arm is attached to a mechanical ground, which may be the enclosure on which the passive radiator is mounted. A system may use multiple lever arms to reduce rocking of the passive radiator.