Photonic pickup for musical instrument

Details Photonic pickup for musical instrument Photonic pickup for musical instrument

1988-08-18

1989-03-28

Witkowski, Stanley J.

Music

Instruments

84 118, G10H 318

Patent

active

048153532

ABSTRACT:
A photoelectric transducer is provided for musical instruments to pick up musical tones so that they may be amplified, transcribed, resynthesized, or recorded. A light source, such as a light emitting diode, is mounted on the instrument to direct light onto a vibratory element of the instrument. Vibrations of the vibratory element cause modulations in the intensity of the light which is reflected or partially obstructed before reaching a photodetector. The modulated electrical output of the photodetector corresponds to the vibration frequency of the vibratory element and may be amplified to drive a loudspeaker or processed for transcription or resynthesis.

REFERENCES:
patent: 2933967 (1960-04-01), Riscol
patent: 3038363 (1962-06-01), Miessner
patent: 3194870 (1965-07-01), Tondreau
patent: 3514522 (1970-05-01), Mussulman
patent: 3733953 (1973-05-01), Ferber
patent: 4028977 (1977-06-01), Ryeczek
patent: 4182213 (1980-01-01), Iodice
patent: 4320662 (1982-03-01), Schaub et al.
patent: 4468999 (1984-09-01), Bonanno
patent: 4563931 (1986-01-01), Siebeneiker et al.

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