Active attenuation system with specified output acoustic wave

Details Active attenuation system with specified output acoustic wave Active attenuation system with specified output acoustic wave

1990-11-14

1992-12-15

Ng, Jin F.

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

381 72, H03B 2900

Patent

active

051724162

ABSTRACT:
An active acoustic attenuation system specifies the error signal (44) to correspondingly specify the output acoustic wave. In the preferred embodiment, the error signal (44) is specified by summing (210) the error signal (44) with a desired signal (204) to provide a specified error signal (206) to the error input (202) of the adaptive filter model (40) such that the model (40) outputs the correction signal (46) to the output transducer (14) to introduce the canceling acoustic wave which specifies the output acoustic wave such that a desired signal is present in the output acoustic wave.

REFERENCES:
patent: 4654871 (1987-03-01), Chaplin et al.
patent: 4677676 (1987-06-01), Eriksson
patent: 4677677 (1987-06-01), Eriksson
patent: 4736431 (1988-04-01), Allie et al.
patent: 4815139 (1989-03-01), Eriksson et al.
patent: 4837834 (1989-06-01), Allie
patent: 4953217 (1990-08-01), Twiney et al.
patent: 5033082 (1991-07-01), Eriksson et al.
patent: 5105377 (1992-04-01), Ziegler, Jr.
Number Theory in Science and Communications, Berlin: Springer-Verlag, M. R. Schroeder, 1984, pp. 252-261.
"Adaptive Filters: Structures, Algorithms, and Applications", Michael L. Honig and David G. Messershcmitt, The Kluwer International Series in Engineering and Computer Science, VLSI, Computer Architecture and Digital Signal Processing, 1984.
"Adaptive Signal Processing", Widrow and Stearns, Prentice-Hall, 1985, pp. 349-351.
"Noise Subtracting Filter Study", John Kaunitz and Bernard Widrow, Stanford University, Oct. 3, 1973, pp. 1-27 and 115-121.

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