Rectangular panel-form loudspeaker and its radiating panel

Details Rectangular panel-form loudspeaker and its radiating panel Rectangular panel-form loudspeaker and its radiating panel

2006-03-07

2006-03-07

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S423000, C381S431000, C381S428000, C381S152000

Reexamination Certificate

active

07010143

ABSTRACT:
A structure of a rectangular panel-form loudspeaker is provided. The structure includes a radiating panel, a transducer, a frame and a suspending unit. The radiating panel includes a rectangular laminated composite plate with length b and width a, and the laminated composite plate includes an intermediate core layer sandwiched between two fiber-reinforced polymeric layers. The transducer is used for exciting the radiating panel to produce flexural vibration. The transducer includes a voice coil assembly and a magnet assembly, wherein the voice coil assembly is coupled to a first side of the laminated composite plate at a first specified location. The frame is used for positioning the laminated composite plate and the magnet assembly. The suspending unit is made of a soft material and disposed between peripheral edges of the laminated composite plate and the frame.

REFERENCES:
patent: 4426556 (1984-01-01), Saiki et al.
patent: 6332029 (2001-12-01), Azima et al.
patent: 6453049 (2002-09-01), Chu et al.
patent: 6478109 (2002-11-01), Kam
patent: 56-132098 (1981-10-01), None
patent: 57-2193 (1982-01-01), None

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