Narrow band controller

Details Narrow band controller Narrow band controller

1996-04-19

1999-05-04

Chang, Vivian

Electrical audio signal processing systems and devices

Noise or distortion suppression

Spectral adjustment

381 942, 381 711, 381 7114, 415119, H04B 1500

Patent

active

059012331

ABSTRACT:
A narrow band controller for suppressing disturbances from a source responsive to an input signal representative of the frequency spectrum of a disturbance from the source and providing an output signal having a similar frequency spectrum as the frequency spectrum of the input signal based on the input signal including delay logic for delaying, for a period of time, the received input signal for assuring the output signal has a phase different than the phase of said input signal.

REFERENCES:
patent: 4423289 (1983-12-01), Swinbanks
patent: 5170433 (1992-12-01), Elliott et al.
patent: 5293578 (1994-03-01), Nagami
patent: 5412951 (1995-05-01), Wu

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