Invertedly driven electrostatic speaker

Details Invertedly driven electrostatic speaker Invertedly driven electrostatic speaker

2006-05-30

2006-05-30

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

C381S116000, C381S176000

Reexamination Certificate

active

07054456

ABSTRACT:
An electrostatic speaker system is provided wherein a multitude of speakers are provided in the system, each speaker having a thin electrically conductive film membrane sandwiched between a pair of stator plates. The film membrane is directly coupled to a high voltage AC audio signal emanating from a power amplifier for reproducing an audio signal. The high voltage AC audio signal is not applied to the stator plates but instead indirectly coupled to the pair of stators by a plurality of condensers (in a voltage multiplier circuit) of a electrical circuit contained within each speaker of the system. By applying the high voltage AC audio signal to the film membrane, approximately one-quarter of the voltage typically used to drive an electrostatic speaker is required.

REFERENCES:
patent: 4323736 (1982-04-01), Strickland
patent: 5392358 (1995-02-01), Driver
patent: 5471540 (1995-11-01), Maeda
patent: 5748758 (1998-05-01), Menasco, Jr. et al.
patent: 6188772 (2001-02-01), Norris et al.
patent: 2002/0141606 (2002-10-01), Schweder et al.

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