Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1984-12-20
1987-10-27
Rubinson, Gene Z.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381193, 381194, 381202, H04R 702, H04R 904
Patent
active
047035102
ABSTRACT:
The transducer diaphragm includes a folded sheet of thin film material, having printed circuit conductors formed thereon in a Greek or serpentine pattern. The Greek pattern includes an odd number of spaced, parallel, printed conductor lines formed into longitudinal and transverse groups, with return conductors extending around the perimeter of the pattern to complete loops of a voice coil. The sheet is folded to form a plurality of rearwardly extending projections, with the folding being along the center lines of each of the longitudinal groups. In the preferred form of the invention, each one of the projections is generally channel-shaped throughout its length, and has a bight portion interconnecting a pair of leg portions, with a longitudinal conductor in the center of the bight and other conductors in the longitudinal group opposite each other on the leg portions.
REFERENCES:
patent: 3171904 (1985-03-01), Poutot
patent: 3209084 (1965-09-01), Gamzon et al.
patent: 3939312 (1976-02-01), McKay
patent: 4056697 (1977-11-01), Heil
patent: 4491698 (1985-01-01), Larson et al.
Byrd Danita R.
Rubinson Gene Z.
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