Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1995-08-15
1997-01-14
Tran, Sinh
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381194, 381204, H04R 7500
Patent
active
055948057
ABSTRACT:
A loudspeaker capable of improving the efficiency, providing a high performance, and reducing its weight. In a general loudspeaker or a loudspeaker having a repulsion magnetic field type magnetic circuit, the whole or part of the voice coil 1 uses a composite wire A formed by a conductive wire made of conductive material C and a magnetic material F provided at least partially on the surface of the conductive wire, or a composite wire A formed by a magnetic wire made of magnetic material F and a conductive material C provided at least partially on the surface of the magnetic wire.
REFERENCES:
patent: 4868882 (1989-09-01), Ziegenberg et al.
patent: 5087300 (1992-02-01), Takayama et al.
"JP, B1, 45-7590 (Taiichi Sawada)" Mar. 16, 1970.
Iwakura Shiro
Sakamoto Yoshio
Tanase Akio
Yamazaki Kaoru
Butts Karlton C.
Ferguson Jr. Gerald J.
Kabushiki Kaisha Kenwood
Tran Sinh
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