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:
Jan. 08, 2008
Filed:
Jan. 29, 2004
Applicants:
Steven W Hutt, Bloomington, IN (US);
John F Steere, Martinsville, IN (US);
D. B Keele, Jr., Bloomington, IN (US);
Inventors:
Steven W Hutt, Bloomington, IN (US);
John F Steere, Martinsville, IN (US);
D. B Keele, Jr., Bloomington, IN (US);
Assignee:
Harman International Industries, Incorporated, Northridge, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10K 11/08 (2006.01); H04R 7/06 (2006.01); H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A loudspeaker includes a frame, a magnet coupled to the frame and a diaphragm secured to the frame. An acoustic lens may be positioned in front of the diaphragm. An aperture extends through the acoustic lens. The acoustical directivity pattern of the loudspeaker may be modified by the acoustic lens to improve the uniformity of the off axis vs. on axis sound pressure level.