Electrical audio signal processing systems and devices – Noise or distortion suppression – Interpolation
Patent
1991-04-04
1993-09-07
Dwyer, James L.
Electrical audio signal processing systems and devices
Noise or distortion suppression
Interpolation
381 71, 381 731, H04B 1500, A61F 1106, H04R 302
Patent
active
052436616
ABSTRACT:
A microphone apparatus having a microphone for producing a desired audio signal, includes an adaptive signal processing section which is supplied with a reference signal based on a vibration detected signal from a vibration detecting circuit in response to a vibration of a vibration generating source whose vibration is picked up by the microphone and becomes an unnecessary noise signal, or in response to a control signal for controlling a drive source of a driving unit of a recording apparatus for recording an output signal from the microphone and which reduces a noise signal contained in the audio signal.
REFERENCES:
patent: 4329714 (1982-05-01), Pritchard
patent: 4377793 (1983-03-01), Horna
patent: 4589137 (1986-05-01), Miller
patent: 4658426 (1987-04-01), Chabries et al.
patent: 4723294 (1988-02-01), Taguchi
patent: 4769847 (1988-09-01), Taguchi
Patent Abstracts of Japan, vol. 6, No. 79 (P-115) May 18, 1982.
Patent Abstracts of Japan, vol. 11, No. 23, (E-473), Jan. 22, 1987 Publication No. JP 61194914.
Katsumata Yasushi
Kimura Akira
Ohkubo Masashi
Sasaki Tooru
Chiang Jack
Dwyer James L.
Eslinger Lewis H.
Maioli Jay H.
Sony Corporation
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