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:
May. 18, 2010
Filed:
Dec. 28, 2007
Steven W. Hutt, Bloomington, IN (US);
John F. Steere, Martinsville, IN (US);
David B. Garner, Indianapolis, IN (US);
Louis A. Mango, Trafalgar, IN (US);
Steven W. Hutt, Bloomington, IN (US);
John F. Steere, Martinsville, IN (US);
David B. Garner, Indianapolis, IN (US);
Louis A. Mango, Trafalgar, IN (US);
Harman International Industries, Incorporated, Northridge, CA (US);
Abstract
Electro-dynamic loudspeakers typically include a diaphragm having a conductor applied to one of its surfaces where the diaphragm is secured to a frame. The conductor is connected to a power supply for providing electrical current through linear traces of the conductor that interact with magnetic fields generated by magnets that are mounted to the frame. The diaphragm is driven by a motive force created when current passes through the conductor within the magnetic field. The electrical current is varied to create an acoustical output from the electro-dynamic loudspeaker. Different methods of attaching the diaphragm are provided for simplifying the manufacturing process and for obtaining a robust electro-dynamic loudspeaker.