Noise masking communications apparatus

Details Noise masking communications apparatus Noise masking communications apparatus

2008-03-25

2008-03-25

Chin, Vivian (Department: 2615)

Electrical audio signal processing systems and devices

Including amplitude or volume control

C379S430000, C381S122000

Reexamination Certificate

active

09990097

ABSTRACT:
A communications headset with a movable microphone boom that extends to different distances from the mouth, where the movement of the boom operates electrical, mechanical or acoustic means to adjust the transmit and/or receive sensitivity of the headset.

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