Resources Contact Us Home
Adjustable microphone boom with acoustic valve

Image Number 13 for United States Patent #6768804.

A sound sensing apparatus such as a communication headset uses a microphone and an acoustic valve controlled by a movable boom to operate in at least a compact and an extended-boom mode, with the valve variously coupling the microphone to different openings on the boom or the main body functioning as the acoustic sensing point.

  Recently Added Patents
Apparatus for generating electrical energy from rocking activated energy
Illuminating device
Universal tablet and smartphone holder
Vacuum cleaner filter adapter ring
Method for producing purified influenza virus antigen
Method and system for efficient DRX operation during handover in LTE
System and method for agitation of multiple specimen containers
  Randomly Featured Patents
Partially devitrified crucible
Ratchet wrench
Process for producing elevated temperature dimensionally stable polyester articles with low gas permeability
Safety blinding device
Semiconductor integrated circuit and image processing apparatus having the same
Light-emitting gallium nitride-based compound semiconductor device
Autonomic resolution of system configuration
Adhesives and coating materials based upon alkali metal silicate solutions
Solid-state transducer based dynamic fluid flow sensing system
Pool vacuum