Active noise reduction headset
OwnerThomas Paige Brittaininventor
Life of this patent
Estimating the term…
Abstract
An active noise reduction headset including a headband and at least one earcup secured thereto. A microphone is mounted within the earcup for detecting and transducing acoustic pressure within the earcup to a corresponding microphone electronic signal. An electronic signal processing unit is mounted within the earcup and coupled with the microphone for generating an anti-noise signal from the microphone electronic signal. A first speaker is mounted within the earcup for receiving and acoustically reproducing an electronic anti-noise signal from the electronic signal processing unit. A second speaker is mounted within the earcup for receiving and acoustically reproducing an electronic communication signal.
Claims9
An active noise reduction headset, comprising:
- a headband;
- an earcup secured to said headband, said earcup having a peripheral flange and a cushion secured to said flange;
- a baffle secured to said earcup, said baffle separating said earcup into an inside cavity for positioning relatively close to the ear of a wearer and an outside cavity opposite therefrom, said baffle including:
- an elliptical rim adapted to engage said peripheral flange of said earcup, said elliptical rim having a central opening therein;
- a closed wall extending from said elliptical rim about said central opening, said closed wall adapted to project into said earcup;
- and,
- a speaker mounting plate secured to said closed wall, said speaker mounting plate having a plurality of apertures therethrough;
- a microphone mounted upon said baffle and positioned substantially within said outside cavity of said earcup for detecting and transducing acoustic pressure within said earcup to a corresponding microphone electronic signal;
- an electronic signal processing unit mounted upon said baffle and positioned substantially within said outside cavity of said earcup and coupled with said microphone for generating an anti-noise signal from said microphone electronic signal;
- a first speaker mounted upon said baffle proximate the center of one of said apertures in said speaker mounting plate and positioned substantially within said outside cavity of said earcup for receiving and acoustically reproducing an electronic anti-noise signal from said electronic signal processing unit;
- and,
- a second speaker mounted upon said baffle proximate the center of another one of said apertures in said speaker mounting plate and positioned substantially within said outside cavity of said earcup for receiving and acoustically reproducing an electronic communication signal.
An active noise reduction assembly for positioning upon an earcup, the earcup having a principal opening and a peripheral flange around the principal opening, said active noise reduction assembly comprising:
- a baffle adapted to engage the earcup and bridge the principal opening thereof, said baffle including:
- an elliptical rim adapted to engage the peripheral flange of the earcup, said elliptical rim having a central opening therein;
- a closed wall extending from said elliptical rim about said central opening, said closed wall adapted to project into the earcup;
- and,
- a speaker mounting plate secured to said closed wall, said speaker mounting plate having a plurality of apertures therethrough;
- a microphone mounted upon said speaker mounting plate for detecting and transducing acoustic pressure within the earcup to a corresponding microphone electronic signal;
- an electronic signal processing unit mounted upon said speaker mounting plate and coupled with said microphone for generating an anti-noise signal from said microphone electronic signal;
- a first speaker mounted upon said speaker mounting plate proximate the center of one of said apertures in said speaker mounting plate for receiving and acoustically reproducing an electronic anti-noise signal from said electronic signal processing unit;
- and,
- a second speaker mounted upon said speaker mounting plate proximate the center of another one of said apertures in said speaker mounting plate for receiving and acoustically reproducing an electronic communication signal.
Dependencies are inferred from the claim text.