Resources Contact Us Home
Acoustic projector for propagating a low dispersion sound field

Image Number 10 for United States Patent #7912234.

A broadband sound generator and transmitter provides minimal attenuation of sound over the distance between the generators and a point at a selected distance. The transmission component includes a parabolic dish and a positionable framework for the sound generators. The sound generators are positioned in front of the dish and oriented to direct sound into the dish for reflection toward a target. Drive signal conditioning circuitry apportion components of the drive signal to the several sound generators and adjust the signal in terms of delay and phase to accommodate changes in position of the generators relative to the dish.

  Recently Added Patents
Modular utility rack
Cellulose ester compositions having low birefringence and films made therefrom
Contactless electrical connector for an induction sensor, and sensor including such a connector
Apparatus for tuning a musical instrument, and a related instrument
Systems and methods for providing television signals using a network interface device
Identification wristband
Method for dropping packet data, radio communication device, and mobile communication system
  Randomly Featured Patents
Method and device for reducing construction site track out
Method and apparatus for acquiring a frequency without a reference clock
Data driving circuit, organic light emitting display device using the same, and driving method of organic light emitting display device
Torque limiting socket and method of using same
High temperature composite material formed from nanostructured powders
Microelectromechanical optical cross-connect switches including mechanical actuators and methods of operating same
Fluidized bed shell boilers
Operating apparatus for a working industrial vehicle
Quick release buckle assembly
Tobacco harvester and method