Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1986-04-16
1988-02-02
Brown, Thomas W.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381193, 381196, 381199, 381201, H04R 904, H04R 704, H04R 718
Patent
active
047232960
ABSTRACT:
An electro-dynamic transducer of the isophase or ribbon type includes a vibratile diaphragm (7) arranged in the air gap of the transducer magnet system and having a current conductor (9) arranged thereon. An additional layer (23, 24) of material is arranged on at least one part of the diaphragm, e.g. in a space (11) between the pole plates. In order to extend the operating frequency range of the transducer, the additional layer is divided into sections (25, 26) with the area of each section being at least an order of mangitude smaller than the area of the one part of the diaphragm. These sections are distributed more or less uniformly over the one part of the diaphragm. It is possible to reduce distortion and increase the sensitivity of the transducer.
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PCT WO83/02708, Torgeson, W., Lee, "Full Range Planar Induction Loudspeaker"; Aug. 1983.
Bax Johannes W. T.
Nieuwendijk Joris A. M.
Sanders Georgius B. J.
Brown Thomas W.
Byrd Danita R.
Franzblau Bernard
Mayer Robert T.
U.S. Philips Corporation
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