Electro-acoustic transducer drive circuit for producing damped w

Details Electro-acoustic transducer drive circuit for producing damped w Electro-acoustic transducer drive circuit for producing damped w

1983-07-28

1984-12-11

Isen, Forester W.

Music

Instruments

368255, G10H 102

Patent

active

044870990

ABSTRACT:
An electro-acoustic transducer drive circuit for driving a device such as a miniature piezoelectric buzzer to emit musical notes, the notes having a damped waveform envelope whose shape is controlled by digital signals. The notes are formed by mutually independent circuit means and can be combined to produce musical chords. The circuit incorporates relatively few elements, and is suitable for implementation within a MOS IC.

REFERENCES:
patent: 4068461 (1978-01-01), Fassett et al.
patent: 4078187 (1978-03-01), Kanisawa et al.

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