Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1989-04-18
1991-10-29
Dwyer, James L.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381201, 381202, H04R 2500
Patent
active
050621408
ABSTRACT:
In a speaker which comprises a diaphragm having a vibrating portion and an annular conductive portion, a current feeding coil facing the conductive portion with a predetermined gap therebetween, and a magnetic circuit including a top plate, a magnet and a yoke plate to which the current feeding coil is attached; the diaphragm is formed so that an electrical resistance of its conductive portion is lower than an electrical resistance of its vibrating portion.
REFERENCES:
patent: 1570287 (1926-01-01), Sell
patent: 2003901 (1935-06-01), Smith et al.
patent: 3586792 (1971-06-01), Michael
patent: 3838216 (1974-09-01), Watkins
patent: 4160133 (1979-07-01), Wiik
patent: 4661973 (1987-04-01), Takahashi
patent: 4709392 (1987-11-01), Kato et al.
Inanaga Kiyofumi
Sogawa Hiroyuki
Tsukamoto Shiro
Chan Jason
Dwyer James L.
Frommer William S.
Sinderbrand Alvin
Sony Corporation
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