Electrical audio signal processing systems and devices – Having non-electrical feature – Having microphone
Patent
1984-07-11
1987-10-13
Rubinson, Gene Z.
Electrical audio signal processing systems and devices
Having non-electrical feature
Having microphone
381120, 381152, 381188, 381190, 381205, H04R 102
Patent
active
047003960
ABSTRACT:
A sound-wave receiving applicance comprises a resonance panel and a crystal type piezoelectric microphone responsive to oscillations generated by the soundwaves, said microphone being adapted for connection to an amplifier. The crystal of the microphone is subjected, between two pole members, to a mechanical initial pressure to increase the pressure sensitivity of the microphone relative to the resonance panel. The receiving applicance preferably has means for manual adjustment of the initial pressure which is absorbed by the resonance panel via one pole member. The resonance panel of the receiving appliance preferably is made of a material, such as a cellular plastic, having a higher porosity and a lower specific gravity than ordinary wood.
REFERENCES:
patent: 1560502 (1925-11-01), Forest
patent: 2350010 (1944-05-01), Beckley
patent: 2565159 (1951-08-01), Williams
patent: 3058015 (1962-10-01), Nesh
patent: 3167668 (1965-01-01), Nesh
patent: 3908503 (1975-09-01), Bolin
patent: 4104945 (1978-08-01), Bolin
patent: 4204096 (1980-05-01), Barcus et al.
patent: 4593404 (1986-06-01), Bolin
Byrd Danita R.
Rubinson Gene Z.
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