Piezoelectric film device for conversion between digital electri

Details Piezoelectric film device for conversion between digital electri Piezoelectric film device for conversion between digital electri

1983-01-26

1984-09-04

Rubinson, Gene Z.

Electrical generator or motor structure

Dynamoelectric

Rotary

310324, 310800, H04R 1700

Patent

active

044699204

ABSTRACT:
A piezoelectric film transducer useful in directly converting a digital signal into an acoustic analog signal; metallized film zones have different areas and are electrically insulated from each other; by selectively exciting different zones or groups of zones with the digital signal, different amplitudes result in the acoustic signal, depending on the area of the particular zone or the combined area of the group of zones.

REFERENCES:
patent: 3792204 (1974-02-01), Murayama et al.
patent: 3832580 (1974-08-01), Yamamura et al.
patent: 4295010 (1981-10-01), Murphy

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