Apparatus for actively reducing noise for interior of enclosed s

Details Apparatus for actively reducing noise for interior of enclosed s Apparatus for actively reducing noise for interior of enclosed s

1992-08-27

1994-08-09

Kuntz, Curtis

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

381 94, A61F 1106

Patent

active

053373650

ABSTRACT:
An apparatus for reducing noise for an interior of enclosed space, e.g., a vehicular compartment using an FIR adaptive digital filter is disclosed in which a control circuit is provided which outputs drive signals to a plurality of loud speakers which generate control sounds to interfer with a noise sound propagated in the interior so that a performance function including terms of residual noise signals output from residual noise signal detecting microphones and drive signals to the loud speakers is minimized and contributivity of the drive signals to the performance function is changed according to an occurrence of divergence in the noise reducing apparatus.

REFERENCES:
patent: 4677676 (1987-06-01), Ericksson
patent: 5170433 (1992-12-01), Elliott et al.
Stephen Elliott et al., "A Multiple Error LMS Algorithm and Its Application to the Active Control of Sound and Vibration", vol. ASSP-35, No. 10, Oct. 1987, IEEE Transactions on Acoustics.

Affiliated with

Also associated with

Rating

Apparatus for actively reducing noise for interior of enclosed s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for actively reducing noise for interior of enclosed s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for actively reducing noise for interior of enclosed s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-222245