Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1981-11-20
1984-01-31
Pellinen, A. D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
179111R, 307400, 29592E, H04R 1900
Patent
active
044291906
ABSTRACT:
A rough surfaced backplate has deposited thereon a metallic electrode having a plurality of large areas interconnected by thin strips. The large areas are symmetrically located on opposite sides of the center of the metallic electrode. Furthermore, the distances between the areas is nonlinear. Superimposed on the metallic electrode is an electret foil having a uniform electrostatic charge deposited on the polymer surface thereof.
REFERENCES:
patent: 3588382 (1971-06-01), Reedyk
patent: 3908098 (1975-09-01), Kawakami et al.
"Electrostatic Microphones with Electret Foil," G. M. Sessler, The Journal of the Acoustical Society of America, Sep. 1963, vol. 35, No. 9, pp. 1354-1357.
Bell Telephone Laboratories Incorporated
Byrd Danito R.
Cubert Jack S.
Nimtz Robert O.
Pellinen A. D.
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