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Non-circular Miniature Loudspeaker

IP.com Disclosure Number: IPCOM000129750D
Publication Date: 2005-Oct-07
Document File: 18 page(s) / 4M

Publishing Venue

The IP.com Prior Art Database

Abstract

A miniature loudspeaker includes a magnetic circuit having a magnetically conducting base part, a non-circular or annular inner magnet arranged on the magnetically conducting base part, and an outer magnet arranged on the magnetically conducting base part. The outer magnet at least partly surrounds the inner magnet in the plane of the base plate. A piston having one or more coils of electrically conducting wire attached thereto or integrated therewith is also provided. The one or more coils of electrically conducting wire are at least partly positioned between the inner and outer magnets.

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