Active noise control system and method for on-line feedback path

Details Active noise control system and method for on-line feedback path Active noise control system and method for on-line feedback path

1997-12-17

1999-08-17

Lee, Ping

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Counterwave generation control path

381 718, 381 711, A61F 1106

Patent

active

059405198

ABSTRACT:
A feedforward active noise control system (50) is provided that includes a reference sensor (16), a secondary source (18), an error sensor (20), and an active noise control system controller (10) for generating an anti-noise signal to attenuate a noise signal provided through a media. The feedforward active noise control system (50) performs on-line feedback path modeling and on-line secondary path modeling.

REFERENCES:
patent: 5396561 (1995-03-01), Popovich et al.
patent: 5502869 (1996-04-01), Smith et al.

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