Speaker apparatus

Details Speaker apparatus Speaker apparatus

2007-03-13

2007-03-13

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S386000, C381S403000, C381S423000, C381S432000

Reexamination Certificate

active

10718646

ABSTRACT:
This invention provides a speaker apparatus that outputs sound having smooth frequency characteristics. To solve the inconvenience with the prior art, this invention is a speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers the coil bobbin, and where the diaphragm is located such that it rests on the coil bobbin, and the coil bobbin and diaphragm are located such that sound from the coil bobbin and diaphragm is not reflected.

REFERENCES:
patent: 4146756 (1979-03-01), Kito et al.

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