Diaphragm for a capacitance type loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element

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Details

381113, 381174, H04R 2500

Patent

active

055902120

ABSTRACT:
A diaphragm for capacitance type loudspeaker is disclosed. The diaphragm uses a conductive high polymer layer as a conductor formed on a high molecular film of PET or the like by treating the high molecular film in a water solvent solution containing a conductive high molecular monomer, a chemical oxidizer and a dopant. The conductive high molecular monomer is selected from the group consisting of pyrrole, aniline, thiophene and derivatives thereof.

REFERENCES:
patent: 5206914 (1993-04-01), Fortney et al.
patent: 5392358 (1995-02-01), Driver

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