Noise cancellation headset

A headset for acoustic reproduction of an electronic anti-noise signal, the headset comprising:

• a headband;
• a cup, mounted to the headband;
• a mounting bracket mounted in the cup, the mounting bracket defining a bracket cavity within the cup on one side of the bracket, the mounting bracket being secured within the cup to define with the cup an earcup cavity so that the volume of the earcup cavity is sealed from air outside of the cup;
• the mounting bracket further containing a bore, thereby providing fluid communication between the earcup cavity and the bracket cavity;
• a driver, which receives and acoustically reproduces the electronic signal, mounted on the mounting bracket with in the bracket cavity;
• a microphone, having a directional sensing surface which detects and transduces acoustic pressure within the cup to a corresponding microphone electrical signal;
• means for generating the anti-noise signal for the microphone signal;
• positioning means for mounting the microphone to the cup and for centering the microphone over the driver with the directional sensing surface oriented substantially directly toward the driver.

A headset for acoustic reproduction of an electronic signal which electronic signal is representative of the summation of an audio signal and an anti-noise signal, the headset comprising:

• a headband;
• a cup, mounted to the headband;
• a driver, mounted within the cup, which receives and acoustically reproduces the electronic signal;
• a directional microphone having a vented face;
• means for generating the anti-noise signal from the microphone signal;
• a grille plate mounted to the cup across the driver, the grille plate including a plurality of apertures therethrough, at least one such aperture being positioned proximate the center of the driver, the microphone being mounted to the grille plate with the vented face of the microphone being mounted across such central aperture with the vented face pointing therethrough oriented substantially directly toward the driver.

A headset for acoustic reproduction of an electronic signal which electronic signal is representative of the summation of an audio signal and an anti-noise signal, the headset comprising:

• a headband;
• a cup, mounted to the headband;
• a driver, mounted within the cup, which receives and acoustically reproduces the electronic signal, the driver having an inner dome portion and an outer annulus portion;
• a directional microphone having a vented face;
• means for generating the anti-noise signal from the microphone signal;
• and
• positioning means for mounting the microphone to the cup so that the microphone is acoustically coupled to the dome portion and isolated from the outer annulus portion, the positioning means comprising a grille plate mounted to the cup across the driver, the microphone being mounted to the grille plate on a side opposite the driver.