Electro-dynamic planar loudspeaker

Details Electro-dynamic planar loudspeaker Electro-dynamic planar loudspeaker

2011-01-18

2011-01-18

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S398000, C381S396000, C381S343000

Reexamination Certificate

active

07873178

ABSTRACT:
A planar loudspeaker includes a shell pot, a magnet, a diaphragm, and a face plate. The magnet may be positioned in a cavity in the shell pot. The diaphragm may be coupled with the shell pot to cover an entrance to the cavity. The shell pot may include a conductive path having an inner contact proximate the central axis of the diaphragm, and an outer contact proximate to a perimeter of the diaphragm. The face plate may be coupled with the shell pot so that the diaphragm is positioned between the magnet and the faceplate. The face plate may include an inner terminal and an outer terminal that are aligned to be in direct contact with the respective inner contact and the outer contact of the diaphragm and form an electrical connection there between when the face plate is coupled with the shell pot. The inner and outer terminals may be coupled with a source of electrical signals, such as an audio amplifier. The face plate may also include a raised surface that deflects the diaphragm into a predetermined shape when the face plate is coupled with the shell pot.

REFERENCES:
patent: 5905805 (1999-05-01), Hansen
patent: 2004/0258269 (2004-12-01), Halsall et al.

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