Active noise control using phased-array active resonators

Details Active noise control using phased-array active resonators Active noise control using phased-array active resonators

1996-03-04

1998-07-07

Isen, Forester W.

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Within duct

381 717, G10K 1116

Patent

active

057780811

ABSTRACT:
An active noise control system includes sensors 16,26 which detects noise 114 and provides electronic signals to an active noise control (ANC) controller 20. The controller provides electronic anti-noise signals to a speaker 24 which is connected to, and provides acoustic anti-noise into, a plurality of active resonators 120-124. The resonators 120-124 are disposed successively along the propagation direction of the noise 114 and provide time-delayed anti-noise acoustic output signals each of which attenuates a portion of the noise 114. The phasing of the anti-noise signals from the resonators 120-124 may be accomplished by acoustic and/or electronic time delays.

REFERENCES:
patent: 4371054 (1983-02-01), Wirt
patent: 4527282 (1985-07-01), Chaplin et al.
patent: 4947434 (1990-08-01), Sakai
patent: 5119427 (1992-06-01), Hersh et al.
patent: 5386479 (1995-01-01), Hersh
patent: 5386689 (1995-02-01), Bozich et al.
patent: 5423658 (1995-06-01), Pla et al.
patent: 5498127 (1996-03-01), Kraft et al.

Affiliated with

Also associated with

Rating

Active noise control using phased-array active resonators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active noise control using phased-array active resonators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active noise control using phased-array active resonators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1215221