Baffle vibration reducing

Details Baffle vibration reducing Baffle vibration reducing

2004-11-30

2009-06-23

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S186000

Reexamination Certificate

active

07551749

ABSTRACT:
An electro-acoustic transducer includes a magnet assembly having a first magnetic flux gap and a second magnetic flux gap. A first voice coil is positioned in the first magnetic flux gap. A first diaphragm is mechanically coupled to the first voice coil and to a frame. The first voice coil moves the first diaphragm in a first direction in response to receiving a first input signal. A second voice coil is positioned in the second magnetic flux gap. A second diaphragm is mechanically coupled to the second voice coil and to the frame. The second voice coil moves the second diaphragm in a second direction that is substantially opposite to the first direction in response to receiving a second input signal. The movement of the second diaphragm reduces a vibration imparted to the frame by the movement of the first diaphragm.

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