Noise masking communications apparatus

Patent metadata

Field	Value
Publication number	US-8948418-B2
Application number	US-98511307-A
Country	US
Kind code	B2
Filing date	Nov 13, 2007
Priority date	Nov 20, 2001
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A communications headset has a microphone boom that is moveable through various distances from the user's mouth, in which movement of the boom operates electrical, mechanical or acoustic mechanisms to adjust the transmit sensitivity of the headset such that the ratio of the amplitude of the output signal of the headset to the amplitude of the sound pressure at the vicinity of the user's mouth is maintained relatively constant, independently of the position of the microphone boom.

First claim

What is claimed is:

1. A headset capable of applying a change in amplitude to an
input signal, the headset comprising:
a main body locatable at a given distance from a desired acoustic source;
a boom, movably coupled to the main body and adapted to be positioned in at least a first position and a second position relative to the desired acoustic source;
a microphone, wherein the microphone is active when the boom is in the first position and second position;
an acoustic sen…

Assignees

• Isvan Osman K
• Plantronics

Inventors

• Isvan Osman K

Classifications

• H03G3/001 Primary

  Electricity · mapped topic

• H04R1/083 Primary

  Electricity · mapped topic